1
|
Chan JYY, Chow VWS, Chan CKM, Chan EYM, Lau JSK, Lai TYY, Young AL, Tham CCY. Photokeratitis in Outdoor Event Participants Exposed to UV Radiation Display. JAMA Ophthalmol 2024:2818271. [PMID: 38696206 PMCID: PMC11066757 DOI: 10.1001/jamaophthalmol.2024.1092] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2023] [Accepted: 02/20/2024] [Indexed: 05/05/2024]
Abstract
Importance While UV radiation displays may be used for recreational purposes at outdoor events, unprotected eyes have been reported to have symptoms consistent with photokeratitis. Such symptoms warrant documentation and evaluation in ophthalmic peer reviewed literature. Objective To describe a case series of photokeratitis associated with a single ultraviolet radiation display at an outdoor event. Design, Setting, and Participants This case series involved a retrospective record review of 8 patients who presented in public and private health sectors in November 2023 after developing photokeratitis following UV radiation exposure at an outdoor event in Hong Kong on the night of November 4, 2023. Main Outcomes and Measures Clinical symptoms, signs, and clinical course of patients who were diagnosed acute photokeratitis following exposure to UV radiation. Results The mean time of UV display exposure for the 8 patients (mean [SD] age, 33.12 [5.19] years; 4 [50%] female) was 3.00 (1.41) hours, and symptoms presented at a mean (SD) 8.88 (8.24) hours after the exposure. None of the patients were wearing spectacles during the exposed period. All patients were affected bilaterally. All patients experienced eye pain, 6 experienced red eye, and 5 experienced tearing and photophobia. Mean (SD) presenting visual acuity was logMAR 0.10 (0.14) (approximate Snellen equivalent, 20/25) for right eyes and 0.06 (0.89) (approximate Snellen equivalent, 20/25) for left eyes. On examination, there were findings of cornea and conjunctival involvement with punctate epithelial erosions and ciliary vasodilation, but none of the patients presented with anterior chamber reaction. Corticosteroids, lubricants, and antibiotics, all provided topically, were prescribed. Five patients were not scheduled for a review, and 3 had follow-up visits, with the length of follow-up ranging from 7 to 10 days. All patients had undergone a complete recovery. Conclusions and Relevance These findings provide evidence of an association between UV radiation used for recreational purposes and photokeratitis, which may help guide evaluation and management of future cases.
Collapse
Affiliation(s)
- Julia Y. Y. Chan
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China
- Hong Kong Eye Hospital, Kowloon, Hong Kong SAR, China
| | - Vanissa W. S. Chow
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China
- Hong Kong Eye Hospital, Kowloon, Hong Kong SAR, China
| | - Carmen K. M. Chan
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China
- Hong Kong Eye Hospital, Kowloon, Hong Kong SAR, China
| | - Edmund Y. M. Chan
- Accident and Emergency Department, Ruttonjee Hospital, Wan Chai, Hong Kong Island, Hong Kong SAR, China
| | - James S. K. Lau
- Accident and Emergency Department, Ruttonjee Hospital, Wan Chai, Hong Kong Island, Hong Kong SAR, China
| | - Timothy Y. Y. Lai
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Alvin L. Young
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China
- Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital, Shatin, New Territories, Hong Kong SAR, China
- Department of Ophthalmology, Alice Ho Miu Ling Nethersole Hospital, Tai Po, New Territories, Hong Kong SAR, China
| | - Clement C. Y. Tham
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China
| |
Collapse
|
2
|
Brelen ME, Ho M, Li S, Ng DSC, Yip YWY, Lee WS, Chen LJ, Young AL, Tham CC, Pang CP. Comparing Half-Dose Photodynamic Therapy with Subthreshold Micropulse Laser for the Treatment of Central Serous Chorioretinopathy. Ophthalmol Retina 2024; 8:490-498. [PMID: 37956794 DOI: 10.1016/j.oret.2023.10.024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2023] [Revised: 10/17/2023] [Accepted: 10/27/2023] [Indexed: 11/15/2023]
Abstract
PURPOSE To compare the anatomic and functional outcomes of half-dose photodynamic therapy (PDT) and yellow 577-nm subthreshold micropulse laser (SMLT) in treating patients with chronic central serous chorioretinopathy (CSCR). DESIGN Prospective, double-masked, randomized, controlled clinical trial. PARTICIPANTS Patients with chronic CSCR confirmed by clinical features and multimodal imaging. METHODS Eligible patients were randomized (1:1) to receive half-dose PDT or SMLT. The same treatment was repeated if persistent subretinal fluid (SRF) was observed. Treatment responses were evaluated 1 month after treatment and every 3 months until the end point at 12 months. MAIN OUTCOME MEASURES The primary outcome measure was the complete resolution of SRF on OCT scan at month 12. Secondary outcomes included the changes in best-corrected visual acuity (BCVA), central macular thickness (CMT) as measured by OCT, retinal sensitivity as measured by microperimetry, and vision-related quality of life using the National Eye Institute 25-Item Visual Function Questionnaire. RESULTS Between April 2017 and October 2020, 68 patients were recruited. At 1 month after treatment, SRF resolved in 8 (24.2%) of 33 patients receiving SMLT and in 20 (58.8%) of 34 patients receiving half-dose PDT. This increased to 23 (82.1%) of 28 patients in the SMLT group and 30 (90.9%) of 33 patients in the half-dose PDT group at 12 months of follow-up. Kaplan-Meier survival curves showed significantly faster resolution of SRF in the half-dose PDT group than the SMLT group (P = 0.016). Both groups showed significant improvement in BCVA (-0.12 ± 0.21, P = 0.005 for SMLT; -0.13 ± 0.12, P < 0.001 for half-dose PDT), CMT (-154.2 ± 105.6, P < 0.001 for SMLT; -140.8 ± 94.0, P < 0.001 for half-dose PDT), and retinal sensitivity (5.70 ± 5.02, P < 0.001 for SMLT; 6.05 ± 3.83, P < 0.001 for half-dose PDT) at 12 months compared with baseline. There was no significant difference between the 2 treatment groups at each time point in all investigations except BCVA at 3 months (P = 0.03). CONCLUSIONS When comparing half-dose PDT to subthreshold SMLT, this study has shown both treatments to be viable options, with half-dose PDT achieving faster anatomic success and functional improvement. FINANCIAL DISCLOSURE(S) Proprietary or commercial disclosure may be found in the Footnotes and Disclosures at the end of this article.
Collapse
Affiliation(s)
- Marten E Brelen
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong, China; Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong, China; Pao So Kok Macular Disease Treatment and Research Centre, Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong, China.
| | - Mary Ho
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong, China; Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong, China
| | - Sophia Li
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong, China; Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong, China
| | - Danny S C Ng
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong, China; Pao So Kok Macular Disease Treatment and Research Centre, Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong, China; Hong Kong Eye Hospital, Hong Kong, China
| | - Yolanda W Y Yip
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong, China
| | - Wing Sze Lee
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong, China
| | - Li Jia Chen
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong, China; Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong, China; Pao So Kok Macular Disease Treatment and Research Centre, Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong, China
| | - Alvin L Young
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong, China; Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong, China
| | - Clement C Tham
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong, China; Pao So Kok Macular Disease Treatment and Research Centre, Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong, China; Hong Kong Eye Hospital, Hong Kong, China
| | - Chi Pui Pang
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong, China; Pao So Kok Macular Disease Treatment and Research Centre, Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong, China
| |
Collapse
|
3
|
Scotton WJ, Shand C, Todd EG, Bocchetta M, Cash DM, VandeVrede L, Heuer HW, Young AL, Oxtoby N, Alexander DC, Rowe JB, Morris HR, Boxer AL, Rohrer JD, Wijeratne PA. Distinct spatiotemporal atrophy patterns in corticobasal syndrome are associated with different underlying pathologies. medRxiv 2024:2024.03.14.24304298. [PMID: 38562801 PMCID: PMC10984071 DOI: 10.1101/2024.03.14.24304298] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/04/2024]
Abstract
Objective To identify imaging subtypes of the cortico-basal syndrome (CBS) based solely on a data-driven assessment of MRI atrophy patterns, and investigate whether these subtypes provide information on the underlying pathology. Methods We applied Subtype and Stage Inference (SuStaIn), a machine learning algorithm that identifies groups of individuals with distinct biomarker progression patterns, to a large cohort of 135 CBS cases (52 had a pathological or biomarker defined diagnosis) and 252 controls. The model was fit using volumetric features extracted from baseline T1-weighted MRI scans and validated using follow-up MRI. We compared the clinical phenotypes of each subtype and investigated whether there were differences in associated pathology between the subtypes. Results SuStaIn identified two subtypes with distinct sequences of atrophy progression; four-repeat-tauopathy confirmed cases were most commonly assigned to the Subcortical subtype (83% of CBS-PSP and 75% of CBS-CBD), while CBS-AD was most commonly assigned to the Fronto-parieto-occipital subtype (81% of CBS-AD). Subtype assignment was stable at follow-up (98% of cases), and individuals consistently progressed to higher stages (100% stayed at the same stage or progressed), supporting the model's ability to stage progression. Interpretation By jointly modelling disease stage and subtype, we provide data-driven evidence for at least two distinct and longitudinally stable spatiotemporal subtypes of atrophy in CBS that are associated with different underlying pathologies. In the absence of sensitive and specific biomarkers, accurately subtyping and staging individuals with CBS at baseline has important implications for screening on entry into clinical trials, as well as for tracking disease progression.
Collapse
Affiliation(s)
- W J Scotton
- Dementia Research Centre, Department of Neurodegenerative Disease, University College London Queen Square Institute of Neurology, University College London, London, UK
| | - C Shand
- Centre for Medical Image Computing, Department of Computer Science, University College London, London, UK
| | - E G Todd
- Dementia Research Centre, Department of Neurodegenerative Disease, University College London Queen Square Institute of Neurology, University College London, London, UK
| | - M Bocchetta
- Dementia Research Centre, Department of Neurodegenerative Disease, University College London Queen Square Institute of Neurology, University College London, London, UK
- Centre for Cognitive and Clinical Neuroscience, Division of Psychology, Department of Life Sciences, College of Health, Medicine and Life Sciences, Brunel University London, London, UK
| | - D M Cash
- Dementia Research Centre, Department of Neurodegenerative Disease, University College London Queen Square Institute of Neurology, University College London, London, UK
| | - L VandeVrede
- Department of Neurology, Memory and Aging Center, University of California, San Francisco, CA, USA
| | - H W Heuer
- Department of Neurology, Memory and Aging Center, University of California, San Francisco, CA, USA
| | - A L Young
- Centre for Medical Image Computing, Department of Computer Science, University College London, London, UK
| | - N Oxtoby
- Centre for Medical Image Computing, Department of Computer Science, University College London, London, UK
| | - D C Alexander
- Centre for Medical Image Computing, Department of Computer Science, University College London, London, UK
| | - J B Rowe
- Cambridge University Department of Clinical Neurosciences and Cambridge University Hospitals NHS Trust
- Medical Research Council Cognition and Brain Sciences Unit, Cambridge UK
| | - H R Morris
- Department of Clinical and Movement Neurosciences, University College London Queen Square Institute of Neurology, London, UK
- Movement Disorders Centre, University College London Queen Square Institute of Neurology, London, UK
| | - A L Boxer
- Centre for Cognitive and Clinical Neuroscience, Division of Psychology, Department of Life Sciences, College of Health, Medicine and Life Sciences, Brunel University London, London, UK
| | - J D Rohrer
- Dementia Research Centre, Department of Neurodegenerative Disease, University College London Queen Square Institute of Neurology, University College London, London, UK
| | - P A Wijeratne
- Centre for Medical Image Computing, Department of Computer Science, University College London, London, UK
- Department of Informatics, University of Sussex, Brighton, BN1 9RH, UK
| |
Collapse
|
4
|
Zhang XJ, Zhang Y, Yip BHK, Kam KW, Tang F, Ling X, Ng MPH, Young AL, Wu PC, Tham CC, Chen LJ, Pang CP, Yam JC. Five-Year Clinical Trial of the Low-Concentration Atropine for Myopia Progression (LAMP) Study: Phase 4 Report. Ophthalmology 2024:S0161-6420(24)00190-8. [PMID: 38494130 DOI: 10.1016/j.ophtha.2024.03.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2023] [Revised: 02/07/2024] [Accepted: 03/11/2024] [Indexed: 03/19/2024] Open
Abstract
PURPOSE To evaluate (1) the long-term efficacy of low-concentration atropine over 5 years, (2) the proportion of children requiring re-treatment and associated factors, and (3) the efficacy of pro re nata (PRN) re-treatment using 0.05% atropine from years 3 to 5. DESIGN Randomized, double-masked extended trial. PARTICIPANTS Children 4 to 12 years of age originally from the Low-Concentration Atropine for Myopia Progression (LAMP) study. METHODS Children 4 to 12 years of age originally from the LAMP study were followed up for 5 years. During the third year, children in each group originally receiving 0.05%, 0.025%, and 0.01% atropine were randomized to continued treatment and treatment cessation. During years 4 and 5, all continued treatment subgroups were switched to 0.05% atropine for continued treatment, whereas all treatment cessation subgroups followed a PRN re-treatment protocol to resume 0.05% atropine for children with myopic progressions of 0.5 diopter (D) or more over 1 year. Generalized estimating equations were used to compare the changes in spherical equivalent (SE) progression and axial length (AL) elongation among groups. MAIN OUTCOMES MEASURES (1) Changes in SE and AL in different groups over 5 years, (2) the proportion of children who needed re-treatment, and (3) changes in SE and AL in the continued treatment and PRN re-treatment groups from years 3 to 5. RESULTS Two hundred seventy (82.8%) of 326 children (82.5%) from the third year completed 5 years of follow-up. Over 5 years, the cumulative mean SE progressions were -1.34 ± 1.40 D, -1.97 ± 1.03 D, and -2.34 ± 1.71 D for the continued treatment groups with initial 0.05%, 0.025%, and 0.01% atropine, respectively (P = 0.02). Similar trends were observed in AL elongation (P = 0.01). Among the PRN re-treatment group, 87.9% of children (94/107) needed re-treatment. The proportion of re-treatment across all studied concentrations was similar (P = 0.76). The SE progressions for continued treatment and PRN re-treatment groups from years 3 to 5 were -0.97 ± 0.82 D and -1.00 ± 0.74 D (P = 0.55) and the AL elongations were 0.51 ± 0.34 mm and 0.49 ± 0.32 mm (P = 0.84), respectively. CONCLUSIONS Over 5 years, the continued 0.05% atropine treatment demonstrated good efficacy for myopia control. Most children needed to restart treatment after atropine cessation at year 3. Restarted treatment with 0.05% atropine achieved similar efficacy as continued treatment. Children should be considered for re-treatment if myopia progresses after treatment cessation. FINANCIAL DISCLOSURE(S) The author(s) have no proprietary or commercial interest in any materials discussed in this article.
Collapse
Affiliation(s)
- Xiu Juan Zhang
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong; Joint Shantou International Eye Center of Shantou University and the Chinese University of Hong Kong, Shantou, China
| | - Yuzhou Zhang
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong
| | - Benjamin H K Yip
- Jockey Club School of Public Health and Primary Care, The Chinese University of Hong Kong, Hong Kong
| | - Ka Wai Kam
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong; Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital, Hong Kong
| | - Fangyao Tang
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong
| | - Xiangtian Ling
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong
| | - Mandy P H Ng
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong
| | - Alvin L Young
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong; Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital, Hong Kong
| | - Pei-Chang Wu
- Department of Ophthalmology, Kaohsiung Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Taoyuan, Taiwan
| | - Clement C Tham
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong; Hong Kong Eye Hospital, Hong Kong; Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital, Hong Kong; Department of Ophthalmology, Hong Kong Children's Hospital, Hong Kong; Hong Kong Hub of Paediatric Excellence, The Chinese University of Hong Kong, Hong Kong
| | - Li Jia Chen
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong; Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital, Hong Kong; Hong Kong Hub of Paediatric Excellence, The Chinese University of Hong Kong, Hong Kong
| | - Chi Pui Pang
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong; Hong Kong Hub of Paediatric Excellence, The Chinese University of Hong Kong, Hong Kong; Joint Shantou International Eye Center of Shantou University and the Chinese University of Hong Kong, Shantou, China
| | - Jason C Yam
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong; Hong Kong Eye Hospital, Hong Kong; Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital, Hong Kong; Department of Ophthalmology, Hong Kong Children's Hospital, Hong Kong; Hong Kong Hub of Paediatric Excellence, The Chinese University of Hong Kong, Hong Kong; Joint Shantou International Eye Center of Shantou University and the Chinese University of Hong Kong, Shantou, China.
| |
Collapse
|
5
|
Lai KK, Ali Abdulla Aljufairi FM, Sebastian JU, Chin JK, Choy EK, Yiu AH, Lee AC, Ng CM, Yip WW, Young AL, Yuen HK, Tham CC, Pang CP, Chong KK. Euthyroid graves' ophthalmopathy in a Chinese population: A cross-sectional follow-up study. Eur J Ophthalmol 2024:11206721241229470. [PMID: 38444235 DOI: 10.1177/11206721241229470] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/07/2024]
Abstract
OBJECTIVES A subtype of patients with thyroid eye disease (TED) were found to be euthyroid without prior thyroid dysfunction or treatment, known as Euthyroid Graves' Ophthalmopathy (EGO). We report the prevalence, clinical and serological phenotypes of EGO in a Chinese population. METHODS A cross-sectional follow-up study. Ethnic Chinese TED patients were managed at the Thyroid Eye Clinic(TEC), Prince of Wales Hospital and TEC, the Chinese University of Hong Kong between September 2007 and July 2021. RESULTS A total of 66 (5%) patients among the 1266 ethnic Han Chinese TED cohort were diagnosed as EGO, and 6 (9%)of them become dysthyroid over an average of 74-month follow-up. EGO patients were associated with a longer duration between onset of the symptoms to our first consultation (P < 0.0001), a higher male-to-female ratio (P = 0.0045) and a higher age of disease onset (P = 0.0092). Family history of thyroid disease was more common in TED patients (P = 0.0216) than in EGO patients. EGO patients were more likely to present unilaterally (P < 0.0001), and they have a larger difference in MRD1 (P < 0.0001), and extraocular motility (P < 0.0001) between the 2 eyes when compared to the TED patients. Notably, the extraocular motility restriction of the worst eye was more affected in EGO patients (P = 0.0113). The percentages of patients who received IVMP, ORT and emergency or elective surgeries(decompression or squint operation) between EGO and TED were similar. CONCLUSIONS Understanding the important clinical phenotypes of EGO may help the clinician to make the correct diagnosis. Further study to compare EGO and TED is warranted.
Collapse
Affiliation(s)
- Kenneth Kh Lai
- Department of Ophthalmology and Visual Sciences, Faculty of Medicine, The Chinese University of Hong Kong, HKSAR, China
- Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital, HKSAR, China
| | - Fatema Mohamed Ali Abdulla Aljufairi
- Department of Ophthalmology and Visual Sciences, Faculty of Medicine, The Chinese University of Hong Kong, HKSAR, China
- Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital, HKSAR, China
- Department of Ophthalmology, Salmaniya Medical Complex, Government Hospitals, Bahrain
| | - Jake Uy Sebastian
- Department of Ophthalmology and Visual Sciences, Faculty of Medicine, The Chinese University of Hong Kong, HKSAR, China
- Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital, HKSAR, China
- Department of Ophthalmology, Vicente Sotto Memorial Medical Center, Cebu City, Philippines
| | - Joyce Ky Chin
- Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital, HKSAR, China
| | - Eric Kh Choy
- Department of Ophthalmology and Visual Sciences, Faculty of Medicine, The Chinese University of Hong Kong, HKSAR, China
| | - Annika Hl Yiu
- Department of Ophthalmology and Visual Sciences, Faculty of Medicine, The Chinese University of Hong Kong, HKSAR, China
| | - Alan Ch Lee
- Division of Endocrinology and Metabolism, Department of Medicine, Queen Mary Hospital, HKSAR, China
| | - C M Ng
- Department of Medicine, Queen Elizabeth Hospital, HKSAR, China
| | - Wilson Wk Yip
- Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital, HKSAR, China
| | - Alvin L Young
- Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital, HKSAR, China
| | - Hunter Kl Yuen
- Department of Ophthalmology and Visual Sciences, Faculty of Medicine, The Chinese University of Hong Kong, HKSAR, China
- Hong Kong Eye Hospital, HKSAR, China
| | - Clement Cy Tham
- Department of Ophthalmology and Visual Sciences, Faculty of Medicine, The Chinese University of Hong Kong, HKSAR, China
- Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital, HKSAR, China
- Hong Kong Eye Hospital, HKSAR, China
| | - Chi Pui Pang
- Department of Ophthalmology and Visual Sciences, Faculty of Medicine, The Chinese University of Hong Kong, HKSAR, China
| | - Kelvin Kl Chong
- Department of Ophthalmology and Visual Sciences, Faculty of Medicine, The Chinese University of Hong Kong, HKSAR, China
- Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital, HKSAR, China
- Hong Kong Eye Hospital, HKSAR, China
| |
Collapse
|
6
|
Chen ZJ, Ng DS, Ho M, Lu SY, Tam POS, Young AL, Brelen ME, Yam JC, Tham CC, Pang CP, Chen LJ. Genetic associations of central serous chorioretinopathy subtypes, neovascular age-related macular degeneration, and polypoidal choroidal vasculopathy. Asia Pac J Ophthalmol (Phila) 2024; 13:100003. [PMID: 38383077 DOI: 10.1016/j.apjo.2023.100003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2023] [Revised: 11/01/2023] [Accepted: 11/13/2023] [Indexed: 02/23/2024] Open
Abstract
PURPOSE To evaluate the genetic associations of different subtypes of central serous chorioretinopathy (CSCR), neovascular age-related macular degeneration (nAMD), and polypoidal choroidal vasculopathy (PCV). DESIGN A case-control genetic association study. METHODS This study enrolled 217 CSCR, 341 nAMD, 288 PCV patients, and 1380 controls. The CSCR patients were classified into those with focal or diffuse leakage, with or without pigment epithelial detachment (PED), and with or without macular neovascularization (MNV). Associations between 11 variants from 8 genes, ADAMTS9, ANGPT2, ARMS2, CFH, NR3C2, PGF, TNFRSF10A and VIPR2, and diseases/subtypes were analyzed by logistic regression analysis adjusted for age and sex, and inter-phenotype comparison by heterogeneity test. RESULTS The CFH rs800292-A conferred a protective effect for CSCR with MNV (OR=0.44, P = 0.002) and a risk effect for CSCR without MNV (OR=1.31, P = 0.023). CSCR patients carrying rs800292-G had a 3.23-fold of increased risk towards developing secondary MNV (P = 1.45 ×10-4). CFH rs3753394, rs800292 and rs1329428 showed similar effects among CSCR with MNV, nAMD and PCV, but opposite effects on CSCR without MNV. TNFRSF10A rs13278062-T was associated with overall CSCR but not with CSCR subtypes, nAMD or PCV. Moreover, CFH and ARMS2 SNPs showed heterogeneous effects in CSCR without MNV against CSCR with MNV, nAMD and PCV. CONCLUSIONS Genetic associations of CSCR with MNV resembled nAMD and PCV compared to CSCR without MNV, indicating differential genetic effects on neovascularization and choroidopathy. Further investigation of the functional roles of CFH, ARMS2, and TNFRSF10A in CSCR, nAMD and PCV should help elucidate the mechanisms of these maculopathies.
Collapse
Affiliation(s)
- Zhen Ji Chen
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong Special Administrative Region
| | - Danny S Ng
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong Special Administrative Region; Hong Kong Eye Hospital, Hong Kong Special Administrative Region
| | - Mary Ho
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong Special Administrative Region; Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital, Hong Kong Special Administrative Region
| | - Shi Yao Lu
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong Special Administrative Region
| | - Pancy O S Tam
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong Special Administrative Region
| | - Alvin L Young
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong Special Administrative Region; Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital, Hong Kong Special Administrative Region
| | - Marten E Brelen
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong Special Administrative Region; Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital, Hong Kong Special Administrative Region
| | - Jason C Yam
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong Special Administrative Region; Hong Kong Eye Hospital, Hong Kong Special Administrative Region
| | - Clement C Tham
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong Special Administrative Region; Hong Kong Eye Hospital, Hong Kong Special Administrative Region
| | - Chi Pui Pang
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong Special Administrative Region
| | - Li Jia Chen
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong Special Administrative Region; Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital, Hong Kong Special Administrative Region.
| |
Collapse
|
7
|
Zaabaar E, Zhang XJ, Zhang Y, Bui CHT, Tang FY, Kam KW, Szeto SKH, Young AL, Wong ICK, Ip P, Tham CC, Pang CP, Chen LJ, Yam JC. Light exposure therapy for myopia control: a systematic review and Bayesian network meta-analysis. Br J Ophthalmol 2023:bjo-2023-323798. [PMID: 38164527 DOI: 10.1136/bjo-2023-323798] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Accepted: 11/11/2023] [Indexed: 01/03/2024]
Abstract
AIMS To compare and rank the myopia control effects of different light wavelengths in children using a systematic review and Bayesian network meta-analysis (Bayesian NMA). METHODS The review protocol was registered with PROSPERO. We searched PubMed, EMBASE and MEDLINE for relevant clinical and animal studies published as of 2 February 2023. We included studies comparing red, violet or full-spectrum light with controls. Data extracted included descriptive statistics and study outcomes (axial length (AL) elongation and progression of spherical equivalent (SE) refraction). After quality assessment, estimates of treatment effect outcomes (mean differences (MDs) and 95% CIs) were first pooled for the animal and clinical studies in a traditional meta-analysis. To compare and rank the different light wavelengths, the Bayesian NMA was then conducted for all the included clinical studies (12 studies) and separately for only randomised controlled trials (8 studies). MDs, 95% credible intervals (CrIs) and ranks of the various light wavelengths were estimated in the Bayesian NMA. RESULTS When all clinical studies were included in the Bayesian NMA (12 studies), only red-light significantly slowed AL elongation, MD (95% CrI), -0.38 mm (-0.59 mm to -0.16 mm)/year and SE refraction progression, 0.72D (0.35D to 1.10D)/year compared with controls. It remained the only significant intervention when effect sizes from only RCTs (eight studies) were separately combined, (-0.28 mm (-0.40 mm to -0.15 mm)/year and 0.57D (0.22D to 0.92D)/year, for AL and SE refraction, respectively). CONCLUSION Myopia control efficacy varied among different wavelengths of light, with red light ranked as the most effective. PROSPERO REGISTRATION NUMBER Clinical studies: CRD42022368998; animal studies: CRD42022368671.
Collapse
Affiliation(s)
- Ebenezer Zaabaar
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Xiu Juan Zhang
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Yuzhou Zhang
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Christine H T Bui
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Fang Yao Tang
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Ka Wai Kam
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China
- Department of Ophthalmology and Visual Sciences, The Prince of Wales Hospital, Hong Kong SAR, China
| | - Simon K H Szeto
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Alvin L Young
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China
- Department of Ophthalmology and Visual Sciences, The Prince of Wales Hospital, Hong Kong SAR, China
| | - Ian C K Wong
- Centre for Safe Medication Practice and Research, Department of Pharmacology and Pharmacy, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong SAR, China
| | - Patrick Ip
- Department of Paediatrics and Adolescent Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong SAR, China
| | - Clement C Tham
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China
- Department of Ophthalmology and Visual Sciences, The Prince of Wales Hospital, Hong Kong SAR, China
- Hong Kong Eye Hospital, Hong Kong SAR, China
- Lam Kin Chung. Jet King-Shing Ho Glaucoma Treatment and Research Centre, Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China
- Department of Ophthalmology, Hong Kong Children Hospital, Hong Kong SAR, China
- Hong Kong Hub of Paediatric Excellence, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Chi Pui Pang
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China
- Lam Kin Chung. Jet King-Shing Ho Glaucoma Treatment and Research Centre, Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China
- Hong Kong Hub of Paediatric Excellence, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Li Jia Chen
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China
- Department of Ophthalmology and Visual Sciences, The Prince of Wales Hospital, Hong Kong SAR, China
- Lam Kin Chung. Jet King-Shing Ho Glaucoma Treatment and Research Centre, Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China
- Hong Kong Hub of Paediatric Excellence, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Jason C Yam
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China
- Department of Ophthalmology and Visual Sciences, The Prince of Wales Hospital, Hong Kong SAR, China
- Hong Kong Eye Hospital, Hong Kong SAR, China
- Department of Ophthalmology, Hong Kong Children Hospital, Hong Kong SAR, China
- Hong Kong Hub of Paediatric Excellence, The Chinese University of Hong Kong, Hong Kong SAR, China
| |
Collapse
|
8
|
Lai KKH, Aljufairi FMAA, Sebastian JU, Yip CCY, Wei Y, Jia R, Cheuk W, Cheng ACO, Chin JKY, Chu CY, Kwong CH, Yip NKF, Li KKW, Chan WH, Yip WWK, Young AL, Chan E, Ko CKL, Chan CKM, Yuen HKL, Chen LJ, Tham CCY, Pang CP, Chong KKL. Systemic Involvement in Immunoglobulin G4-Related Ophthalmic Disease. Ocul Immunol Inflamm 2023:1-7. [PMID: 38055933 DOI: 10.1080/09273948.2023.2280709] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2023] [Accepted: 11/02/2023] [Indexed: 12/08/2023]
Abstract
BACKGROUND Immunoglobulin G4-related ophthalmic disease (IgG4-ROD) poses clinical challenges due to its heterogeneous ocular and systemic manifestations. We aim to report the systemic involvement and the clinical, serological and radiological associations of a cohort of Chinese patients. METHODS A territory-wide, biopsy-proven, Chinese cohort. A retrospective, masked chart review of medical records, orbital images, and histopathology reports. RESULTS A total of 122 (65 male) patients with a follow-up of 81 ± 49 (24 to 84) months were reviewed. Ninety (74%) patients presented bilaterally. Subacute upper eyelid swelling was the commonest presentation (82/122, 67%). During follow-up, 91/122 patients (75%) underwent extra-orbital imaging including computer tomography (692 films), ultrasonography (182 films), magnetic resonance imaging (76 films) and whole body FDG-PET scan (33 films). Eighty-six (95%) of these 91 patients had extra-orbital involvement radiologically (2.7 ± 1.6 regions, range: 0 to 9). Lymph node was the most prevalent (N = 60,66%), followed by salivary gland (N = 51,56%), lung (N = 49,54%), kidney (N = 22, 24%), hepatobiliary tree (N = 18, 20%) and pancreas (N = 17, 19%). Other organs include thyroid, aorta, meninges/brain and skin. Twenty-eight (23%) patients had allergic diseases (19 asthma, 16 allergic rhinitis, and 6 eczemas). Fifty-seven (48%) patients had paranasal sinusitis. Serum eosinophilia was associated with a higher number (3.24 versus 2.52, P = 0.0304) of organ involvement. Patients with deep organ involvement was associated with a higher age of IgG4-ROD onset (70 ± 12 versus 56 ± 13, P < 0.0001). CONCLUSIONS 95% of the patients who underwent systemic imaging in our cohort had systemic organ involvement. An early physicians' assessment and radiological imaging are recommended after the diagnosis of IgG4-ROD.
Collapse
Affiliation(s)
- Kenneth K H Lai
- Department of Ophthalmology, Tung Wah Eastern Hospital, Hong Kong Special Administrative Region, China
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong Special Administrative Region, China
| | - Fatema Mohamed Ali Abdulla Aljufairi
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong Special Administrative Region, China
- Department of Ophthalmology, Salmaniya Medical Complex, Government Hospitals, Manama, Bahrain
| | - Jake Uy Sebastian
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong Special Administrative Region, China
- Department of Ophthalmology, Vicente Sotto Memorial Medical Center, Cebu City, Philippines
| | - Carson C Y Yip
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong Special Administrative Region, China
| | - Yingying Wei
- Department of Statistics, The Chinese University of Hong Kong Special Administrative Region, Hong Kong Special Administrative Region, China
| | - Ruofan Jia
- Department of Statistics, The Chinese University of Hong Kong Special Administrative Region, Hong Kong Special Administrative Region, China
| | - Wah Cheuk
- Department of Pathology, Queen Elizabeth Hospital, Hong Kong Special Administrative Region, China
| | - Andy C O Cheng
- Department of Ophthalmology, Hong Kong Sanatorium & Hospital, Hong Kong Special Administrative Region, China
| | - Joyce K Y Chin
- Department of Ophthalmology and Visual Sciences, Princes of Wales Hospital, Hong Kong Special Administrative Region, China
| | - Chung Yin Chu
- Department of Ophthalmology, Grantham Hospital, Hong Kong Special Administrative Region, China
| | - Chi Ho Kwong
- Department of Ophthalmology, Caritas Medical Center, Hong Kong Special Administrative Region, China
| | - Nelson K F Yip
- Department of Ophthalmology, United Christian Hospital, Hong Kong Special Administrative Region, China
| | - Kenneth K W Li
- Department of Ophthalmology, United Christian Hospital, Hong Kong Special Administrative Region, China
| | - W H Chan
- Department of Ophthalmology, Tuen Mun Hospital, Hong Kong Special Administrative Region, China
| | - Wilson W K Yip
- Department of Ophthalmology and Visual Sciences, Princes of Wales Hospital, Hong Kong Special Administrative Region, China
| | - Alvin L Young
- Department of Ophthalmology and Visual Sciences, Princes of Wales Hospital, Hong Kong Special Administrative Region, China
| | - Edwin Chan
- Department of Ophthalmology, Tung Wah Eastern Hospital, Hong Kong Special Administrative Region, China
| | - Callie K L Ko
- Department of Ophthalmology, Tung Wah Eastern Hospital, Hong Kong Special Administrative Region, China
| | - Carmen K M Chan
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong Special Administrative Region, China
- Hong Kong Eye Hospital, Hong Kong Special Administrative Region, China
| | - Hunter K L Yuen
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong Special Administrative Region, China
- Hong Kong Eye Hospital, Hong Kong Special Administrative Region, China
| | - Li Jia Chen
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong Special Administrative Region, China
- Department of Ophthalmology and Visual Sciences, Princes of Wales Hospital, Hong Kong Special Administrative Region, China
| | - Clement C Y Tham
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong Special Administrative Region, China
- Department of Ophthalmology and Visual Sciences, Princes of Wales Hospital, Hong Kong Special Administrative Region, China
| | - Chi Pui Pang
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong Special Administrative Region, China
| | - Kelvin K L Chong
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong Special Administrative Region, China
- Department of Ophthalmology and Visual Sciences, Princes of Wales Hospital, Hong Kong Special Administrative Region, China
- Hong Kong Eye Hospital, Hong Kong Special Administrative Region, China
| |
Collapse
|
9
|
Zhang XJ, Wang YM, Jue Z, Chan HN, Lau YH, Zhang W, Kam KW, Ip P, Young AL, Tham CC, Pang CP, Chen LJ, Yam JC. Interocular Symmetry in Retinal Nerve Fiber Layer Thickness in Children: The Hong Kong Children Eye Study. Ophthalmol Ther 2023; 12:3373-3382. [PMID: 37851163 PMCID: PMC10640485 DOI: 10.1007/s40123-023-00825-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2023] [Accepted: 09/22/2023] [Indexed: 10/19/2023] Open
Abstract
INTRODUCTION The aim of this work is to determine the interocular differences in peripapillary retinal nerve fiber layer (p-RNFL) thickness and its associations among school children in Hong Kong. METHODS We conducted a population-based study including 4034 children aged 6-8 years from the Hong Kong Children Eye Study (HKCES). All participants received comprehensive ocular examinations where p-RNFL thickness was measured using spectral-domain optical coherence tomography (SD-OCT). The degree of symmetry between both eyes was analyzed and represented by intraclass correlation coefficient (ICC) values. Multivariable linear regression analysis was used to investigate the associations between ocular and systemic factors with p-RNFL thickness difference. RESULTS The study included 4034 children with a mean age of 7.61 ± 0.98 years. The mean global p-RNFL thickness was 106.60 ± 9.41 μm in right eyes and 105.99 ± 9.30 μm in left eyes. The ICC for global p-RNFL difference was 0.866 (95% CI 0.858-0.873, p < 0.001). The symmetry displayed the largest values in nasal inferior quadrant with the ICC value of 0.736 (95% CI 0.721-0.749); and the smallest degree of symmetry was found to be in the superior temporal quadrant with the ICC value of 0.567 (95% CI 0.546-0.588). Axial length (AL) difference was found to have more pronounced correlation to interocular symmetry in p-RNFL thickness with the coefficient of 0.514 (p < 0.001). CONCLUSIONS Normal variation in interocular symmetry exists in children. Our results can contribute to the establishment of a standard reference for interocular differences in OCT parameters in children. The interocular differences in AL should be considered in the interpretation of RNFL symmetry, in terms of identifying children at risk of developing glaucoma or other ocular disorders.
Collapse
Affiliation(s)
- Xiu Juan Zhang
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong, SAR, China
- Tianjin Eye Hospital, Tianjin, China
| | - Yu Meng Wang
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong, SAR, China
- Department of Neurobiology, Interdisciplinary Center for Neurosciences (IZN), Heidelberg University, Heidelberg, Germany
| | - Zhenzhen Jue
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong, SAR, China
| | - Hei-Nga Chan
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong, SAR, China
| | - Yi Han Lau
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong, SAR, China
| | - Wei Zhang
- Tianjin Eye Hospital, Tianjin, China
| | - Ka Wai Kam
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong, SAR, China
- Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital, Hong Kong, SAR, China
| | - Patrick Ip
- Department of Paediatrics and Adolescent Medicine, LKS Faculty of Medicine, The University of Hong Kong, Hong Kong, SAR, China
| | - Alvin L Young
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong, SAR, China
- Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital, Hong Kong, SAR, China
| | - Clement C Tham
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong, SAR, China
- Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital, Hong Kong, SAR, China
- 4/F Department of Ophthalmology and Visual Sciences, Hong Kong Eye Hospital, 147K Argyle Street, Kowloon, Hong Kong
- Hong Kong Hub of Paediatric Excellence, The Chinese University of Hong Kong, Hong Kong, SAR, China
| | - Chi Pui Pang
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong, SAR, China
- Hong Kong Hub of Paediatric Excellence, The Chinese University of Hong Kong, Hong Kong, SAR, China
| | - Li Jia Chen
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong, SAR, China
- Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital, Hong Kong, SAR, China
- Hong Kong Hub of Paediatric Excellence, The Chinese University of Hong Kong, Hong Kong, SAR, China
| | - Jason C Yam
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong, SAR, China.
- Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital, Hong Kong, SAR, China.
- 4/F Department of Ophthalmology and Visual Sciences, Hong Kong Eye Hospital, 147K Argyle Street, Kowloon, Hong Kong.
- Hong Kong Hub of Paediatric Excellence, The Chinese University of Hong Kong, Hong Kong, SAR, China.
- Department of Ophthalmology, Hong Kong Children's Hospital, Hong Kong, SAR, China.
| |
Collapse
|
10
|
Lai KKH, Liao X, Aljufairi FMAA, Wong YM, Chiu JT, Mak HT, Cheng ACO, Chin JKY, Chu BCY, Kwong CH, Li KKW, Chan WH, Yip WWK, Young AL, Chan E, Ko CKL, Ko STC, Chan CKM, Yuen HKL, Chen LJ, Tham CC, Pang CP, Chong KKL. Ocular Surface Evaluation in Immunoglobulin G4-Related Ophthalmic Disease. Am J Ophthalmol 2023; 256:90-96. [PMID: 37544494 DOI: 10.1016/j.ajo.2023.07.031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2023] [Revised: 07/27/2023] [Accepted: 07/30/2023] [Indexed: 08/08/2023]
Abstract
PURPOSE To evaluate the functional and structural changes of the meibomian glands and ocular surface in immunoglobulin G4-related ophthalmic disease (IgG4-ROD) patients. DESIGN Cross-sectional, matched case-control comparison study. METHODS This study included 64 patients with biopsy-proven IgG4-ROD (aged 63.4 ± 12.2 years, 39 male) and 64 sex- and age-matched healthy controls. Patients were managed by hospitals covering the publicly funded ophthalmology service in Hong Kong. Outcome measures included anterior segment examination and keratographic and meibographic imagings. RESULTS A total of 64 worst-affected eyes of the 64 IgG4-ROD patients were analyzed. Corneal fluorescein staining (P = .0187), lid margin telangiectasia (P = .0360), lid-parallel conjunctival folds (P = .0112), papillae (P = .0393), meibomian gland plugging (P = .0001), meibomian gland expressibility (P = .0001), and meibum quality (P = .0001) were more significant in IgG4-ROD patients compared with healthy controls. Both upper and lower meibomian gland dropouts (P = .001 and .0003), and tear meniscus height (P = .0001) were higher in IgG4-ROD patients. Non-invasive tear break-up time (NITBUT) (P = .0166) and Schirmer test results (P = .0243) were lower in IgG4-ROD patients. Upper (r = 0.336, P = .0140) meibomian gland dropouts and NITBUT (r = -0.293, P = .0497) were positively and negatively correlated with the IgG4-ROD onset age, respectively. The number of extraocular organ involvement was negatively correlated with the Schirmer test(r = -0.341, P = .0167). Lower NITBUT was found in IgG4-ROD eyes with lacrimal gland enlargement than in IgG4-ROD eyes without lacrimal gland enlargement radiologically (P < .0001). CONCLUSIONS IgG4-ROD patients showed features of both aqueous tear deficiency and evaporative dry eye disease. We recommend ocular surface evaluation to all patients newly diagnosed with IgG4-ROD. Further studies are warranted to clarify the mechanism of IgG4-related dry eye disease.
Collapse
Affiliation(s)
- Kenneth K H Lai
- From the Department of Ophthalmology (K.K.H.L., E.C., C.K.L.K., S.T.C.K.), Tung Wah Eastern Hospital, Hong Kong Special Administrative Region, China; Department of Ophthalmology and Visual Sciences (K.K.,H.L., X.L., F.M.A.A.A., Y.M.W., J.T.C., H.T.M., C.K.M.C., H.K.L.Yl, L.J.C., C.C.T., C.P.P., K.K.L.C.), The Chinese University of Hong Kong, Hong Kong Special Administrative Region, China
| | - Xulin Liao
- Department of Ophthalmology and Visual Sciences (K.K.,H.L., X.L., F.M.A.A.A., Y.M.W., J.T.C., H.T.M., C.K.M.C., H.K.L.Yl, L.J.C., C.C.T., C.P.P., K.K.L.C.), The Chinese University of Hong Kong, Hong Kong Special Administrative Region, China
| | - Fatema Mohamed Ali Abdulla Aljufairi
- Department of Ophthalmology and Visual Sciences (K.K.,H.L., X.L., F.M.A.A.A., Y.M.W., J.T.C., H.T.M., C.K.M.C., H.K.L.Yl, L.J.C., C.C.T., C.P.P., K.K.L.C.), The Chinese University of Hong Kong, Hong Kong Special Administrative Region, China; Department of Ophthalmology (F.M.A.A.A.), Salmaniya Medical Complex, Government Hospitals, Bahrain
| | - Yiu Man Wong
- Department of Ophthalmology and Visual Sciences (K.K.,H.L., X.L., F.M.A.A.A., Y.M.W., J.T.C., H.T.M., C.K.M.C., H.K.L.Yl, L.J.C., C.C.T., C.P.P., K.K.L.C.), The Chinese University of Hong Kong, Hong Kong Special Administrative Region, China
| | - Jamie T Chiu
- Department of Ophthalmology and Visual Sciences (K.K.,H.L., X.L., F.M.A.A.A., Y.M.W., J.T.C., H.T.M., C.K.M.C., H.K.L.Yl, L.J.C., C.C.T., C.P.P., K.K.L.C.), The Chinese University of Hong Kong, Hong Kong Special Administrative Region, China
| | - H T Mak
- Department of Ophthalmology and Visual Sciences (K.K.,H.L., X.L., F.M.A.A.A., Y.M.W., J.T.C., H.T.M., C.K.M.C., H.K.L.Yl, L.J.C., C.C.T., C.P.P., K.K.L.C.), The Chinese University of Hong Kong, Hong Kong Special Administrative Region, China
| | - Andy C O Cheng
- Department of Ophthalmology (A.C.O.C.), Hong Kong Sanatorium & Hospital, Hong Kong Special Administrative Region, China
| | - Joyce K Y Chin
- Department of Ophthalmology and Visual Sciences (J.K.Y.C., W.W.K.Y., A.L.Y., L.J.C., C.C.T., K.K.L.C.), Prince of Wales Hospital, Hong Kong Special Administrative Region, China
| | - Benjamin C Y Chu
- Department of Ophthalmology (B.C.Y.C.), Grantham Hospital, Hong Kong Special Administrative Region, China
| | - Chi Ho Kwong
- Department of Ophthalmology (C.H.K.), Caritas Medical Center, Hong Kong Special Administrative Region, China
| | - Kenneth K W Li
- Department of Ophthalmology (K.K.W.L.), United Christian Hospital, Hong Kong Special Administrative Region, China
| | - W H Chan
- Department of Ophthalmology (W.H.C.), Tuen Mun Hospital, Hong Kong Special Administrative Region, China
| | - Wilson W K Yip
- Department of Ophthalmology and Visual Sciences (J.K.Y.C., W.W.K.Y., A.L.Y., L.J.C., C.C.T., K.K.L.C.), Prince of Wales Hospital, Hong Kong Special Administrative Region, China
| | - Alvin L Young
- Department of Ophthalmology and Visual Sciences (J.K.Y.C., W.W.K.Y., A.L.Y., L.J.C., C.C.T., K.K.L.C.), Prince of Wales Hospital, Hong Kong Special Administrative Region, China
| | - Edwin Chan
- From the Department of Ophthalmology (K.K.H.L., E.C., C.K.L.K., S.T.C.K.), Tung Wah Eastern Hospital, Hong Kong Special Administrative Region, China
| | - Callie K L Ko
- From the Department of Ophthalmology (K.K.H.L., E.C., C.K.L.K., S.T.C.K.), Tung Wah Eastern Hospital, Hong Kong Special Administrative Region, China
| | - Simon T C Ko
- From the Department of Ophthalmology (K.K.H.L., E.C., C.K.L.K., S.T.C.K.), Tung Wah Eastern Hospital, Hong Kong Special Administrative Region, China
| | - Carmen K M Chan
- Department of Ophthalmology and Visual Sciences (K.K.,H.L., X.L., F.M.A.A.A., Y.M.W., J.T.C., H.T.M., C.K.M.C., H.K.L.Yl, L.J.C., C.C.T., C.P.P., K.K.L.C.), The Chinese University of Hong Kong, Hong Kong Special Administrative Region, China; Hong Kong Eye Hospital (C.K.M.C., H.K.L.Y., C.C.T., K.K.L.C.), Hong Kong Special Administrative Region, China
| | - Hunter K L Yuen
- Department of Ophthalmology and Visual Sciences (K.K.,H.L., X.L., F.M.A.A.A., Y.M.W., J.T.C., H.T.M., C.K.M.C., H.K.L.Yl, L.J.C., C.C.T., C.P.P., K.K.L.C.), The Chinese University of Hong Kong, Hong Kong Special Administrative Region, China; Hong Kong Eye Hospital (C.K.M.C., H.K.L.Y., C.C.T., K.K.L.C.), Hong Kong Special Administrative Region, China
| | - Li Jia Chen
- Department of Ophthalmology and Visual Sciences (K.K.,H.L., X.L., F.M.A.A.A., Y.M.W., J.T.C., H.T.M., C.K.M.C., H.K.L.Yl, L.J.C., C.C.T., C.P.P., K.K.L.C.), The Chinese University of Hong Kong, Hong Kong Special Administrative Region, China; Department of Ophthalmology and Visual Sciences (J.K.Y.C., W.W.K.Y., A.L.Y., L.J.C., C.C.T., K.K.L.C.), Prince of Wales Hospital, Hong Kong Special Administrative Region, China
| | - Clement C Tham
- Department of Ophthalmology and Visual Sciences (K.K.,H.L., X.L., F.M.A.A.A., Y.M.W., J.T.C., H.T.M., C.K.M.C., H.K.L.Yl, L.J.C., C.C.T., C.P.P., K.K.L.C.), The Chinese University of Hong Kong, Hong Kong Special Administrative Region, China; Department of Ophthalmology and Visual Sciences (J.K.Y.C., W.W.K.Y., A.L.Y., L.J.C., C.C.T., K.K.L.C.), Prince of Wales Hospital, Hong Kong Special Administrative Region, China; Hong Kong Eye Hospital (C.K.M.C., H.K.L.Y., C.C.T., K.K.L.C.), Hong Kong Special Administrative Region, China
| | - Chi Pui Pang
- Department of Ophthalmology and Visual Sciences (K.K.,H.L., X.L., F.M.A.A.A., Y.M.W., J.T.C., H.T.M., C.K.M.C., H.K.L.Yl, L.J.C., C.C.T., C.P.P., K.K.L.C.), The Chinese University of Hong Kong, Hong Kong Special Administrative Region, China
| | - Kelvin K L Chong
- Department of Ophthalmology and Visual Sciences (K.K.,H.L., X.L., F.M.A.A.A., Y.M.W., J.T.C., H.T.M., C.K.M.C., H.K.L.Yl, L.J.C., C.C.T., C.P.P., K.K.L.C.), The Chinese University of Hong Kong, Hong Kong Special Administrative Region, China; Department of Ophthalmology and Visual Sciences (J.K.Y.C., W.W.K.Y., A.L.Y., L.J.C., C.C.T., K.K.L.C.), Prince of Wales Hospital, Hong Kong Special Administrative Region, China; Hong Kong Eye Hospital (C.K.M.C., H.K.L.Y., C.C.T., K.K.L.C.), Hong Kong Special Administrative Region, China.
| |
Collapse
|
11
|
Kam KW, Mok E, Ho M, Wong CH, Sze RKH, Chan PKS, Young AL. Iris depigmentation and cytomegalovirus in aqueous humor as predictors of uveitic activity and recurrence in chronic and recurrent anterior uveitis. Indian J Ophthalmol 2023; 71:3684-3689. [PMID: 37991304 PMCID: PMC10788736 DOI: 10.4103/ijo.ijo_2937_22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2022] [Revised: 06/26/2023] [Accepted: 07/27/2023] [Indexed: 11/23/2023] Open
Abstract
PURPOSE To examine the clinical outcomes in chronic or recurrent anterior uveitis in the presence or absence of cytomegalovirus (CMV) and investigate the predictive factors for uveitic activity and recurrence. METHODS Polymerase chain reaction (PCR) was performed in a prospective cohort of immunocompetent adults with recurrent or chronic anterior uveitis to detect CMV in aqueous humor. The clinical outcomes were compared between eyes with and without CMV DNA. Logistic regression was performed to evaluate associations between iris depigmentation, CMV-PCR status, uveitic activity, and recurrence. RESULTS Thirty-eight eyes of 38 subjects with a mean age of 61.1 ± 11.2 years old were analyzed. Fifteen eyes were positive for CMV. More eyes with CMV developed recurrences and remained actively inflamed at 6, 12, and 24 weeks though the differences were insignificant. The presence of iris depigmentation was predictive of a greater odd of uveitic recurrences by 12 and 24 weeks (Odds ratio (OR) = 9.17 and 5.72, P = 0.007 and 0.034 respectively), whereas positive CMV-PCR predicts a greater odd of uveitic activity at postoperative 12 and 24 weeks (OR = 13.08, 34.30; P = 0.027, 0.007). CONCLUSION Eye with and without detectable CMV behaved similarly in their clinical course. Our findings suggested that iris depigmentation was predictive of more frequent uveitic recurrence, regardless of the PCR status, whereas the presence of CMV in aqueous humor was associated with persistent uveitic activity. Iris changes may be present during the earlier phase of the disease and precede the detection of virus from the aqueous humor at a later stage of CMV infection.
Collapse
Affiliation(s)
- Ka Wai Kam
- Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital and Alice Ho Miu Ling Nethersole Hospital, Hong Kong, China
- Departments of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong, China
| | - Eugenie Mok
- Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital and Alice Ho Miu Ling Nethersole Hospital, Hong Kong, China
- Departments of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong, China
| | - Mary Ho
- Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital and Alice Ho Miu Ling Nethersole Hospital, Hong Kong, China
- Departments of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong, China
| | - Chung Hei Wong
- Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital and Alice Ho Miu Ling Nethersole Hospital, Hong Kong, China
| | - Ryan Kin Ho Sze
- Departments of Microbiology, The Chinese University of Hong Kong, Hong Kong, China
| | - Paul KS Chan
- Departments of Microbiology, The Chinese University of Hong Kong, Hong Kong, China
| | - Alvin L Young
- Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital and Alice Ho Miu Ling Nethersole Hospital, Hong Kong, China
- Departments of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong, China
| |
Collapse
|
12
|
Lai KKH, Li EYM, Chan RYC, Chu WCW, Cheng ACO, Chan KKW, Chin JKY, Kwok JSW, Io IYF, Yip NKF, Li KKW, Chan WH, Lam NM, Yip WWK, Young AL, Chan E, Ko CKL, Ko STC, Yuen HKL, Tham CCY, Pang CP, Chong KKL. Treatment outcomes and their determinants of IgG4-related ophthalmic disease: a territory-wide cohort study. Br J Ophthalmol 2023; 107:1920-1924. [PMID: 36288914 DOI: 10.1136/bjo-2021-320936] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2021] [Accepted: 10/05/2022] [Indexed: 11/03/2022]
Abstract
BACKGROUND Oral corticosteroid remains the first-line treatment of IgG4-related ophthalmic disease, but steroid-dependence is common and serious. Factors associated with steroid dependence and relapse have to be further explored. STUDY POPULATION A city-wide, biopsy-proven, Chinese cohort. METHODS Retrospective, masked review of medical records, orbital images and histopathology reports. RESULTS There were 101 patients with at least 24-month follow-up. Up to 82% (82/101) received oral corticosteroid as first-line treatments, and 7 of them received also concomitant steroid-sparing agents (SSA)/biological agents as primary treatment. There was 61% (50/82) of patients required long-term corticosteroid (alone=23, with SSA=27) after 1.9±0.7 (range 1-5) relapses. When compared with the 21% (17/82) of patients who tapered corticosteroid successfully for 24 months, steroid dependence was associated with elevated baseline serum IgG4 level (94% vs 65%, p<0.01) and Mikulicz syndrome (46% vs 18%, p<0.05). Up to 13% (11/82) of patients tolerated residual disease after tapering off corticosteroid. There was 17% (17/101) of patients did not require any medications after biopsies. They were more likely to have debulking surgeries (71% vs 40%, p<0.05), discrete orbital lesions (65% vs 26%, p<0.05), normal baseline serum IgG4 level (24% vs 6%, p<0.05) and no Mikulicz syndrome (94% vs 61%, p<0.05). CONCLUSION In this cohort, 60% of patients required long-term maintenance oral corticosteroid. Elevated pretreatment serum IgG4 level and Mikulicz syndrome were associated with steroid dependence. Debulking surgery is an alternative for a subgroup of patients with discrete orbital lesions, normal baseline IgG4 level and no Mikulicz syndrome.
Collapse
Affiliation(s)
- Kenneth K H Lai
- Department of Ophthalmology, Tung Wah Eastern Hospital, Hong Kong, People's Republic of China
- Department of Ophthalmology and Visual Science, The Chinese University of Hong Kong, Hong Kong, People's Republic of China
| | - Emmy Y M Li
- Hong Kong Eye Hospital, Hong Kong, People's Republic of China
| | - Regine Y C Chan
- Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital, Hong Kong, People's Republic of China
| | - Winnie C W Chu
- Department of Imaging and Interventional Radiology, Prince of Wales Hospital, Hong Kong, People's Republic of China
| | - Andy C O Cheng
- Department of Ophthalmology, Hong Kong Sanatorium & Hospital, Hong Kong, People's Republic of China
| | - Karen K W Chan
- Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital, Hong Kong, People's Republic of China
| | - Joyce K Y Chin
- Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital, Hong Kong, People's Republic of China
| | - Jeremy S W Kwok
- Department of Ophthalmology, Grantham Hospital, Hong Kong, People's Republic of China
- Department of Ophthalmology, The University of Hong Kong, Hong Kong, People's Republic of China
| | - Ida Y F Io
- Department of Ophthalmology, Caritas Medical Center, Hong Kong, People's Republic of China
| | - Nelson K F Yip
- Department of Ophthalmology, United Christian Hospital, Hong Kong, People's Republic of China
| | - Kenneth K W Li
- Department of Ophthalmology, United Christian Hospital, Hong Kong, People's Republic of China
| | - Wai Ho Chan
- Department of Ophthalmology, Tuen Mun Hospital, Hong Kong, People's Republic of China
| | - Nai Man Lam
- Hong Kong Eye Hospital, Hong Kong, People's Republic of China
| | - Wilson W K Yip
- Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital, Hong Kong, People's Republic of China
| | - Alvin L Young
- Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital, Hong Kong, People's Republic of China
| | - Edwin Chan
- Department of Ophthalmology, Tung Wah Eastern Hospital, Hong Kong, People's Republic of China
| | - Callie K L Ko
- Department of Ophthalmology, Tung Wah Eastern Hospital, Hong Kong, People's Republic of China
| | - Simon T C Ko
- Department of Ophthalmology, Tung Wah Eastern Hospital, Hong Kong, People's Republic of China
| | - Hunter K L Yuen
- Hong Kong Eye Hospital, Hong Kong, People's Republic of China
| | - Clement C Y Tham
- Department of Ophthalmology and Visual Science, The Chinese University of Hong Kong, Hong Kong, People's Republic of China
- Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital, Hong Kong, People's Republic of China
| | - Chi-Pui Pang
- Department of Ophthalmology and Visual Science, The Chinese University of Hong Kong, Hong Kong, People's Republic of China
| | - Kelvin K L Chong
- Department of Ophthalmology and Visual Science, The Chinese University of Hong Kong, Hong Kong, People's Republic of China
- Hong Kong Eye Hospital, Hong Kong, People's Republic of China
- Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital, Hong Kong, People's Republic of China
| |
Collapse
|
13
|
Ran AR, Wang X, Chan PP, Wong MOM, Yuen H, Lam NM, Chan NCY, Yip WWK, Young AL, Yung HW, Chang RT, Mannil SS, Tham YC, Cheng CY, Wong TY, Pang CP, Heng PA, Tham CC, Cheung CY. Developing a privacy-preserving deep learning model for glaucoma detection: a multicentre study with federated learning. Br J Ophthalmol 2023:bjo-2023-324188. [PMID: 37857452 DOI: 10.1136/bjo-2023-324188] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2023] [Accepted: 09/23/2023] [Indexed: 10/21/2023]
Abstract
BACKGROUND Deep learning (DL) is promising to detect glaucoma. However, patients' privacy and data security are major concerns when pooling all data for model development. We developed a privacy-preserving DL model using the federated learning (FL) paradigm to detect glaucoma from optical coherence tomography (OCT) images. METHODS This is a multicentre study. The FL paradigm consisted of a 'central server' and seven eye centres in Hong Kong, the USA and Singapore. Each centre first trained a model locally with its own OCT optic disc volumetric dataset and then uploaded its model parameters to the central server. The central server used FedProx algorithm to aggregate all centres' model parameters. Subsequently, the aggregated parameters are redistributed to each centre for its local model optimisation. We experimented with three three-dimensional (3D) networks to evaluate the stabilities of the FL paradigm. Lastly, we tested the FL model on two prospectively collected unseen datasets. RESULTS We used 9326 volumetric OCT scans from 2785 subjects. The FL model performed consistently well with different networks in 7 centres (accuracies 78.3%-98.5%, 75.9%-97.0%, and 78.3%-97.5%, respectively) and stably in the 2 unseen datasets (accuracies 84.8%-87.7%, 81.3%-84.8%, and 86.0%-87.8%, respectively). The FL model achieved non-inferior performance in classifying glaucoma compared with the traditional model and significantly outperformed the individual models. CONCLUSION The 3D FL model could leverage all the datasets and achieve generalisable performance, without data exchange across centres. This study demonstrated an OCT-based FL paradigm for glaucoma identification with ensured patient privacy and data security, charting another course toward the real-world transition of artificial intelligence in ophthalmology.
Collapse
Affiliation(s)
- An Ran Ran
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Xi Wang
- Zhejiang Lab, Hangzhou, China
- Department of Computer Science and Engineering, The Chinese University of Hong Kong, Hong Kong SAR, China
- Department of Radiation Oncology, Stanford University School of Medicine, Palo Alto, California, USA
| | - Poemen P Chan
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China
- Hong Kong Eye Hospital, Hong Kong SAR, China
| | | | - Hunter Yuen
- Hong Kong Eye Hospital, Hong Kong SAR, China
| | - Nai Man Lam
- Hong Kong Eye Hospital, Hong Kong SAR, China
| | - Noel C Y Chan
- Ophthalmology and Visual Sciences, Prince of Wales Hospital, Hong Kong SAR, China
- Ophthalmology and Visual Sciences, Alice Ho Miu Ling Nethersole Hospital, Hong Kong SAR, China
| | - Wilson W K Yip
- Ophthalmology and Visual Sciences, Prince of Wales Hospital, Hong Kong SAR, China
- Ophthalmology and Visual Sciences, Alice Ho Miu Ling Nethersole Hospital, Hong Kong SAR, China
| | - Alvin L Young
- Ophthalmology and Visual Sciences, Prince of Wales Hospital, Hong Kong SAR, China
- Ophthalmology and Visual Sciences, Alice Ho Miu Ling Nethersole Hospital, Hong Kong SAR, China
| | | | - Robert T Chang
- Ophthalmology, Stanford University School of Medicine, Stanford, California, USA
| | - Suria S Mannil
- Ophthalmology, Stanford University School of Medicine, Stanford, California, USA
| | - Yih-Chung Tham
- Singapore Eye Research Institute, Singapore National Eye Centre, Singapore
- Duke-National University of Singapore Medical School, Singapore
- Department of Ophthalmology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Ching-Yu Cheng
- Singapore Eye Research Institute, Singapore National Eye Centre, Singapore
- Duke-National University of Singapore Medical School, Singapore
- Department of Ophthalmology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Tien Yin Wong
- Singapore Eye Research Institute, Singapore National Eye Centre, Singapore
- Tsinghua University, Beijing, China
- School of Clinical Medicine, Beijing Tsinghua Changgung Hospital, Beijing, China
| | - Chi Pui Pang
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Pheng-Ann Heng
- Department of Computer Science and Engineering, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Clement C Tham
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China
- Hong Kong Eye Hospital, Hong Kong SAR, China
| | - Carol Y Cheung
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China
| |
Collapse
|
14
|
Ng DS, Yip BHK, Young AL, Yip WWK, Lam NM, Li KK, Ko ST, Chan WH, Aryasit O, Sikder S, Ferris JD, Pang CP, Tham CC. Cost-effectiveness of virtual reality and wet laboratory cataract surgery simulation. Medicine (Baltimore) 2023; 102:e35067. [PMID: 37800761 PMCID: PMC10552957 DOI: 10.1097/md.0000000000035067] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Accepted: 08/14/2023] [Indexed: 10/07/2023] Open
Abstract
PURPOSE To evaluate the cost-effectiveness of phacoemulsification simulation training in virtual reality simulator and wet laboratory on operating theater performance. METHODS Residents were randomized to a combination of virtual reality and wet laboratory phacoemulsification or wet laboratory phacoemulsification. A reference control group consisted of trainees who had wet laboratory training without phacoemulsification. All trainees were assessed on operating theater performance in 3 sequential cataract patients. International Council of Ophthalmology Surgical Competency Assessment Rubric-phacoemulsification (ICO OSCAR phaco) scores by 2 masked independent graders and cost data were used to determine the incremental cost-effectiveness ratio (ICER). A decision model was constructed to indicate the most cost-effective simulation training strategy based on the willingness to pay (WTP) per ICO OSCAR phaco score gained. RESULTS Twenty-two trainees who performed phacoemulsification in 66 patients were analyzed. Trainees who had additional virtual reality simulation achieved higher mean ICO OSCAR phaco scores compared with trainees who had wet laboratory phacoemulsification and control (49.5 ± standard deviation [SD] 9.8 vs 39.0 ± 15.8 vs 32.5 ± 12.1, P < .001). Compared with the control group, ICER per ICO OSCAR phaco of wet laboratory phacoemulsification was $13,473 for capital cost and $2209 for recurring cost. Compared with wet laboratory phacoemulsification, ICER per ICO OSCAR phaco of additional virtual reality simulator training was US $23,778 for capital cost and $1879 for recurring cost. The threshold WTP values per ICO OSCAR phaco score for combined virtual reality simulator and wet laboratory phacoemulsification to be most cost-effective was $22,500 for capital cost and $1850 for recurring cost. CONCLUSIONS Combining virtual reality simulator with wet laboratory phacoemulsification training is effective for skills transfer in the operating theater. Despite of the high capital cost of virtual reality simulator, its relatively low recurring cost is more favorable toward cost-effectiveness.
Collapse
Affiliation(s)
- Danny S. Ng
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong, China
- Hong Kong Eye Hospital, Hong Kong, China
- Hong Kong Baptist Hospital, Hong Kong, China
| | - Benjamin H. K. Yip
- The Jockey Club School of Public Health and Primary Care, The Chinese University of Hong Kong, Hong Kong, China
| | - Alvin L. Young
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong, China
- Prince of Wales Hospital, Hong Kong, China
| | - Wilson W. K. Yip
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong, China
- Prince of Wales Hospital, Hong Kong, China
| | - Nai M. Lam
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong, China
- Hong Kong Eye Hospital, Hong Kong, China
| | - Kenneth K. Li
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong, China
- United Christian Hospital, Hong Kong, China
| | - Simon T. Ko
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong, China
- Pamela Youde Nethersole Eastern Hospital, Hong Kong, China
| | | | | | - Shameema Sikder
- Wilmer Eye Institute, Johns Hopkins University, Baltimore, MD
| | - John D. Ferris
- Ophthalmology, Gloucestershire Hospitals, National Health Service Foundation Trust, Cheltenham, United Kingdom
| | - Chi P. Pang
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong, China
| | - Clement C. Tham
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong, China
- Hong Kong Eye Hospital, Hong Kong, China
- Prince of Wales Hospital, Hong Kong, China
| |
Collapse
|
15
|
Mok E, Kam KW, Young AL. Corneal nerve changes in herpes zoster ophthalmicus: a prospective longitudinal in vivo confocal microscopy study. Eye (Lond) 2023; 37:3033-3040. [PMID: 36906697 PMCID: PMC10008015 DOI: 10.1038/s41433-023-02469-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2022] [Revised: 02/02/2023] [Accepted: 02/24/2023] [Indexed: 03/13/2023] Open
Abstract
PURPOSE To study the changes in corneal nerves and corneal sensitivity over a 6-month period in patients with herpes zoster ophthalmicus (HZO) compared with healthy subjects. METHODS This was a prospective longitudinal study on patients with newly diagnosed HZO. In vivo confocal microscopy (IVCM) corneal nerve parameters and corneal sensitivity were measured and compared between eyes with HZO, contralateral eyes and controls at baseline, 2 and 6 months. RESULTS Fifteen subjects with HZO and 15 healthy age and sex matched controls were recruited. HZO eyes revealed a reduction in corneal nerve branch density (CNBD) from baseline to 2 months (9.65 ± 5.75 vs. 5.90 ± 6.87/mm2, p = 0.018), and decreased corneal nerve fibre density (CNFD) at 2 months when compared with control (p = 0.025). However, these differences resolved by 6 months. HZO fellow eyes demonstrated increased corneal nerve fibre area (CNFA), corneal nerve fibre width (CNFW) and corneal nerve fractal dimension (CNFrD) at 2 months compared with baseline (p = 0.025, 0.031, 0.009). There was no change in corneal sensitivity for both HZO affected and HZO fellow eyes from baseline or over time, nor was it different from sensitivity in controls. CONCLUSION Corneal denervation was present at 2 months in HZO eyes, with an observed recovery by 6 months. HZO fellow eyes demonstrated increased corneal nerve parameters at 2 months, which could represent a proliferative response to nerve degeneration. IVCM is useful in monitoring corneal nerve changes, and is more sensitive in detecting nerve alterations than esthesiometry.
Collapse
Affiliation(s)
- Eugenie Mok
- Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital and Alice Ho Miu Ling Nethersole Hospital, New Territories, Hong Kong
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Shatin, Hong Kong
| | - Ka Wai Kam
- Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital and Alice Ho Miu Ling Nethersole Hospital, New Territories, Hong Kong
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Shatin, Hong Kong
| | - Alvin L Young
- Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital and Alice Ho Miu Ling Nethersole Hospital, New Territories, Hong Kong.
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Shatin, Hong Kong.
| |
Collapse
|
16
|
Zhang XJ, Tang SM, Wang YM, Zhang Y, Chan HN, Lau YH, Kam KW, Chan PP, Ip P, Young AL, Tham CC, Chen LJ, Pang CP, Yam JC. Increase in Bruch's membrane opening minimum rim width with age in healthy children: the Hong Kong Children Eye Study. Br J Ophthalmol 2023; 107:1344-1349. [PMID: 35649695 DOI: 10.1136/bjophthalmol-2021-320524] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2021] [Accepted: 05/18/2022] [Indexed: 11/03/2022]
Abstract
BACKGROUND/AIMS To identify normative values and determinants for Bruch's membrane opening (BMO) and the minimum rim width of BMO (BMO-MRW) among healthy children. METHODS A population-based cross-sectional study from the Hong Kong Children Eye Study, recruiting 1, 226 children aged 6-8 years. Spherical refractive error, axial length (AL), body mass index and intraocular pressure (IOP) were measured. The optic nerve head and the peripapillary retinal nerve fibre layer (p-RNFL) were imaged through spectral domain-optical coherence tomography, using 24 equally spaced radial B-scans. Global and sectoral BMO-MRW values, BMO area and fovea-to-BMO (FoBMO) angle were calculated. Multiple regression analysis was performed to define the determinants of BMO area and BMO-MRW in relation to demographic and ocular parameters. RESULTS The mean values for global BMO-MRW, BMO area and FoBMO angle among children were 345.76±54.08 µm, 2.34±0.49 mm2 and -5.45±4.36°, respectively. Global and sectoral values for BMO-MRW correlated with p-RNFL thickness (r=0.11-0.35, p<0.001). After adjusting for demographic and ocular parameters, global BMO-MRW increased with age (β=6.4, p<0.001) and greater global p-RNFL thickness (β=1.41, p<0.001), but decreased with larger BMO area (β=-47.46, p<0.001) and higher IOP (β=-1.73, p<0.001). Global BMO-MRW did not associate with AL, whereas both BMO area and FoBMO angle associated with AL (β=0.04, p=0.02 and β=0.31, p=0.03, respectively), but not with age. CONCLUSION We observed that BMO-MRW increases with age among children. Our results provide normative values and the determinants of BMO parameters among Chinese children.
Collapse
Affiliation(s)
- Xiu Juan Zhang
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Shu Min Tang
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China
- Department of Ophthalmology, The First Affiliated Hospital of Fujian Medical University, Fujian, China
| | - Yu Meng Wang
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Yuzhou Zhang
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Hei-Nga Chan
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Yi Han Lau
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Ka Wai Kam
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China
- Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital, Hong Kong SAR, China
| | - Poemen P Chan
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China
- Hong Kong Eye Hospital, Kowloon, Hong Kong SAR
| | - Patrick Ip
- Department of Paediatrics and Adolescent Medicine, LKS Faculty of Medicine, University of Hong Kong, Hong Kong SAR
| | - Alvin L Young
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China
- Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital, Hong Kong SAR, China
| | - Clement C Tham
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China
- Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital, Hong Kong SAR, China
- Hong Kong Eye Hospital, Kowloon, Hong Kong SAR
- Department of Ophthalmology, Hong Kong Children Hospital, Hong Kong SAR, China
- Hong Kong Hub of Paediatric Excellence, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Li Jia Chen
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China
- Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital, Hong Kong SAR, China
- Hong Kong Hub of Paediatric Excellence, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Chi Pui Pang
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China
- Hong Kong Hub of Paediatric Excellence, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Jason C Yam
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China
- Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital, Hong Kong SAR, China
- Hong Kong Eye Hospital, Kowloon, Hong Kong SAR
- Department of Ophthalmology, Hong Kong Children Hospital, Hong Kong SAR, China
- Hong Kong Hub of Paediatric Excellence, The Chinese University of Hong Kong, Hong Kong SAR, China
| |
Collapse
|
17
|
Wong PPY, Tsim NC, Chan KKW, Lau IHW, Mak ACY, Chen GLJ, Iu LPL, Ho M, Young AL, Brelén M. Rise in intraocular pressure with elevator travel in post-vitrectomy patients. Sci Rep 2023; 13:14088. [PMID: 37640777 PMCID: PMC10462696 DOI: 10.1038/s41598-023-40416-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2023] [Accepted: 08/09/2023] [Indexed: 08/31/2023] Open
Abstract
To evaluate the impact of elevator travel on intraocular pressure after vitreoretinal surgery with gas tamponade. Patients undergoing pars plana vitreoretinal surgery with and without gas insertion were recruited on post-operative day 1. All intraocular pressures were measured three times by Tono-Pen AVIA (Reichert, USA) on the fourth floor and, after rapid ascent in an elevator, on the 12th floor of the hospital. All patients were observed and asked for any symptoms of pain or nausea for at least 15 min. In this study, 54 patients were recruited. Twenty-seven patients underwent vitreoretinal procedures with gas insertion, while 27 patients without gas insertion acted as controls. The mean age of patients was 60.9 years. The mean changes in intraocular pressure of the patients with gas insertion (+ 1.39 mmHg) were greater than those without gas insertion (- 0.43 mmHg) and statistically significantly different (95% CI 1.17-2.48, P < 0.0001). Patients undergoing vitreoretinal surgery with gas insertion had statistically significant intraocular pressure rise even with 8-floor ascent in the immediate post-operative period. Further studies are needed to evaluate the change in intraocular pressure with a larger range of altitudes and different gases.
Collapse
Affiliation(s)
- Posey P Y Wong
- Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital, 30-32 Ngan Shing Street, Shatin, Hong Kong
| | - Nicole C Tsim
- Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital, 30-32 Ngan Shing Street, Shatin, Hong Kong
| | - Karen K W Chan
- Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital, 30-32 Ngan Shing Street, Shatin, Hong Kong
| | - Ivan H W Lau
- Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital, 30-32 Ngan Shing Street, Shatin, Hong Kong
| | - Andrew C Y Mak
- Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital, 30-32 Ngan Shing Street, Shatin, Hong Kong
| | - Guy L J Chen
- Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital, 30-32 Ngan Shing Street, Shatin, Hong Kong
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, 4/F Hong Kong Eye Hospital, 147K Argyle Street, Kowloon, Hong Kong
| | - Lawrence P L Iu
- Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital, 30-32 Ngan Shing Street, Shatin, Hong Kong
| | - Mary Ho
- Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital, 30-32 Ngan Shing Street, Shatin, Hong Kong
| | - Alvin L Young
- Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital, 30-32 Ngan Shing Street, Shatin, Hong Kong
| | - Mårten Brelén
- Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital, 30-32 Ngan Shing Street, Shatin, Hong Kong.
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, 4/F Hong Kong Eye Hospital, 147K Argyle Street, Kowloon, Hong Kong.
| |
Collapse
|
18
|
Iu LPL, Yip WWK, Lok JYC, Ho M, Cheung LTY, Wu THM, Young AL. Comparison of United Kingdom and United States screening criteria for detecting retinopathy of prematurity in Hong Kong. Hong Kong Med J 2023; 29:330-336. [PMID: 37474485 DOI: 10.12809/hkmj219378] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/22/2023] Open
Abstract
INTRODUCTION We examined whether the United Kingdom (UK) or the United States (US) screening criteria are more appropriate for retinopathy of prematurity (ROP) screening in Hong Kong, in terms of sensitivity for detecting type 1 ROP and the number of infants requiring screening. METHODS In this retrospective cohort study, we reviewed the medical records of all infants who underwent ROP screening from 2009 to 2018 at a tertiary hospital in Hong Kong. During this period, all infants born at gestational age (GA) ≤31 weeks and 6 days or birth weight (BW) <1501 g (ie, the UK screening criteria) underwent ROP screening. We determined the number of infants requiring screening and the number of type 1 ROP cases that would have been missed if the US screening criteria (GA ≤30 weeks & 0 days or BW ≤1500 g) had been used. RESULTS Overall, 796 infants were screened using the UK screening criteria. If the US screening criteria had been used, the number of infants requiring screening would have decreased by 21.1%; all type 1 ROP cases would have been detected (38/38, 100% sensitivity). Of the 168 infants who would not have been screened using the US screening criteria, only four of them (2.4%) had developed ROP (all maximum stage 1 only). CONCLUSION In our population, the use of the US screening criteria could reduce the number of infants screened without compromising sensitivity for the detection of type 1 ROP requiring treatment. We suggest narrowing the GA criterion for consistency with the US screening criteria during ROP screening in Hong Kong.
Collapse
Affiliation(s)
- L P L Iu
- Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital, Hong Kong SAR, China
| | - W W K Yip
- Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital, Hong Kong SAR, China
| | - J Y C Lok
- Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital, Hong Kong SAR, China
| | - M Ho
- Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital, Hong Kong SAR, China
| | - L T Y Cheung
- Department of Ophthalmology, Tung Wah Eastern Hospital, Hong Kong SAR, China
| | - T H M Wu
- Department of Paediatrics and Adolescent Medicine, Pamela Youde Nethersole Eastern Hospital, Hong Kong SAR, China
| | - A L Young
- Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital, Hong Kong SAR, China
| |
Collapse
|
19
|
Wang YY, Zhang XJ, Kam KW, Chen ZJ, Zhang Y, Tang FY, Li FF, Tam POS, Yip WWK, Young AL, Tham CC, Pang CP, Yam JC, Chen LJ. Association of Polymorphisms in ZFHX1B and PAX6 With Anisometropia in Chinese Children: The Hong Kong Children Eye Genetics Study. Invest Ophthalmol Vis Sci 2023; 64:6. [PMID: 37266952 DOI: 10.1167/iovs.64.7.6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/03/2023] Open
Abstract
Purpose To identify gene variants associated with anisometropia development in children. Methods This is a population-based, cross-sectional, and longitudinal genetic association study involving 1057 children aged 6 to 10 years with both baseline and 3-year follow-up data. Six single nucleotide polymorphisms (SNPs), ZC3H11B rs4373767, ZFHX1B rs13382811, KCNQ5 rs7744813, SNTB1 rs7839488, PAX6 rs644242, and GJD2 rs524952 were analyzed in all children. Anisometropia was defined by an interocular difference in SE of ≥1 diopter (D) (Aniso-SE) and an interocular difference in axial length (AL) of ≥0.3 mm (Aniso-AL), respectively. Genetic associations of individual SNPs and joint SNP effects were analyzed. Results ZFHX1B rs13382811 was associated nominally with Aniso-AL (odds ratio [OR], 1.66; P = 0.003) at baseline. At 3 years, rs13382811 was significantly associated with Aniso-AL (OR, 1.49; P = 0.001) and became nominally associated with Aniso-SE (OR, 1.40; P = 0.01). In addition, PAX6 rs644242 was significantly associated with Aniso-AL at 3 years (OR, 1.45; P = 0.002). At the 3-year follow-up, PAX6 rs644242 was associated significantly with Aniso-AL development (OR, 1.61; P = 0.0003) and nominally with Aniso-SE development (P = 0.03) in children who were not anisometropic at baseline, whereas ZFHX1B rs13382811 was associated nominally with Aniso-AL development (P = 0.02). An additive SNP analysis indicated children carrying the risk allele T of ZFHX1B rs13382811 and allele A of PAX6 rs644242 might have a 4.33- and 6.90-fold of increased risk of Aniso-SE and Aniso-AL development by 3 years, respectively. Conclusions This study identified two susceptible gene variants, ZFHX1B rs13382811 and PAX6 rs644242, for anisometropia development in Hong Kong Chinese children, implicating their role in imbalanced refractive change and axial elongation between both eyes.
Collapse
Affiliation(s)
- Yu Yao Wang
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong, China
| | - Xiu Juan Zhang
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong, China
| | - Ka Wai Kam
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong, China
- Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital, Hong Kong, China
| | - Zhen Ji Chen
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong, China
| | - Yuzhou Zhang
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong, China
| | - Fang Yao Tang
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong, China
| | - Fen Fen Li
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong, China
| | - Pancy O S Tam
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong, China
| | - Wilson W K Yip
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong, China
- Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital, Hong Kong, China
| | - Alvin L Young
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong, China
- Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital, Hong Kong, China
| | - Clement C Tham
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong, China
- Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital, Hong Kong, China
- Hong Kong Eye Hospital, Hong Kong, China
- Hong Kong Hub of Paediatric Excellence, The Chinese University of Hong Kong, Hong Kong, China
| | - Chi Pui Pang
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong, China
- Hong Kong Hub of Paediatric Excellence, The Chinese University of Hong Kong, Hong Kong, China
| | - Jason C Yam
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong, China
- Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital, Hong Kong, China
- Hong Kong Eye Hospital, Hong Kong, China
- Hong Kong Hub of Paediatric Excellence, The Chinese University of Hong Kong, Hong Kong, China
| | - Li Jia Chen
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong, China
- Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital, Hong Kong, China
- Hong Kong Hub of Paediatric Excellence, The Chinese University of Hong Kong, Hong Kong, China
| |
Collapse
|
20
|
Zhang Y, Zhang XJ, Yuan N, Zhang Y, Wang YM, Tang F, Ng MP, Wong ICK, Ip P, Kam KW, Young AL, Chen LJ, Tham CC, Pang CP, Yam JC. Analysis of Secondhand Smoke Exposure and Myopia Among Children Aged 6 to 8 Years in Hong Kong. JAMA Netw Open 2023; 6:e2313006. [PMID: 37166795 PMCID: PMC10176122 DOI: 10.1001/jamanetworkopen.2023.13006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 05/12/2023] Open
Abstract
Importance Secondhand smoke (SHS) exposure potentially threatens ocular health; however, its association with myopia is unknown. Objective To examine the association between SHS exposure and childhood myopia. Design, Setting, and Participants Cross-sectional data from the population-based Hong Kong Children Eye Study were used. Data were collected from March 5, 2015, to September 12, 2021, at The Chinese University of Hong Kong Eye Center. Participants included children aged 6 to 8 years. Secondhand smoke exposure was evaluated using a validated questionnaire. All participants underwent comprehensive ophthalmic and physical examinations. Exposure Secondhand smoke exposure. Main Outcomes and Measures Generalized estimating equations were constructed to examine the association of SHS exposure with spherical equivalent and axial length; logistic regression models, with myopia rate; and linear regression models, with myopia onset. Results A total of 12 630 children (mean [SD] age, 7.37 [0.88] years; 53.2% boys) were included in the analysis. Among the participants, 4092 (32.4%) had SHS exposure. After adjusting for age, sex, parental myopia, body mass index, near-work time, outdoor time, and family income, SHS exposure was associated with greater myopic refraction (β = -0.09 [95% CI, -0.14 to -0.03]) and longer axial length (β = 0.05 [95% CI, 0.02-0.08]). Children with SHS exposure were more likely to develop moderate (odds ratio [OR], 1.30 [95% CI, 1.06-1.59]) and high myopia (OR, 2.64 [95% CI, 1.48-4.69]). The association of SHS exposure with spherical equivalence and axial length was magnified in younger children. For each younger year of a child's exposure to SHS, SHS exposure was associated with a 0.07-D decrease in spherical equivalence (β = 0.07 [95% CI, 0.01-0.13]) and a 0.05-mm increase in axial length (β = -0.05 [95% CI, -0.08 to -0.01]). Exposure to SHS was associated with an earlier mean (SD) age at onset of myopia (72.8 [0.9] vs 74.6 [0.6] months; P = .01). Every increase in SHS exposure in units of 10 cigarettes per day was associated with greater myopic refraction (β = -0.07 [95% CI, -0.11 to -0.02]), axial length (β = 0.04 [95% CI, 0.01-0.06]), and likelihood of developing moderate (OR, 1.23 [95% CI, 1.05-1.44]) and high myopia (OR, 1.75 [95% CI, 1.20-2.56]), and earlier myopia onset (β = -1.30 [95% CI, -2.32 to -0.27]). Conclusions and Relevance The findings of this cross-sectional study suggest that SHS exposure was associated with greater myopic refraction, longer axial length, greater likelihood of developing moderate and high myopia, and earlier myopia onset. The larger the quantity of SHS exposure and the younger the child, the more advanced myopia development and progression with which SHS exposure is associated.
Collapse
Affiliation(s)
- Youjuan Zhang
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China
- The Nethersole School of Nursing, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Xiu Juan Zhang
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China
- Joint Shantou International Eye Center of Shantou University and the Chinese University of Hong Kong, Shantou, China
| | - Nan Yuan
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China
- Kunming Bright Eye Hospital, Kunming, China
| | - Yuzhou Zhang
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Yu Meng Wang
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China
- Department of Neurobiology, Interdisciplinary Center for Neurosciences, Heidelberg University, Heidelberg, Germany
| | - Fangyao Tang
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Mandy P Ng
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Ian C K Wong
- Centre for Safe Medication Practice and Research, Department of Pharmacology and Pharmacy, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong SAR, China
| | - Patrick Ip
- Department of Paediatrics and Adolescent Medicine, University of Hong Kong, Hong Kong SAR, China
| | - Ka Wai Kam
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China
- Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital, Hong Kong SAR, China
| | - Alvin L Young
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China
- Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital, Hong Kong SAR, China
| | - Li Jia Chen
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China
- Joint Shantou International Eye Center of Shantou University and the Chinese University of Hong Kong, Shantou, China
- Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital, Hong Kong SAR, China
- Hong Kong Hub of Paediatric Excellence, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Clement C Tham
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China
- Joint Shantou International Eye Center of Shantou University and the Chinese University of Hong Kong, Shantou, China
- Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital, Hong Kong SAR, China
- Hong Kong Hub of Paediatric Excellence, The Chinese University of Hong Kong, Hong Kong SAR, China
- Hong Kong Eye Hospital, Hong Kong SAR, China
- Department of Ophthalmology, Hong Kong Children's Hospital, Hong Kong SAR, China
| | - Chi Pui Pang
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China
- Joint Shantou International Eye Center of Shantou University and the Chinese University of Hong Kong, Shantou, China
- Hong Kong Hub of Paediatric Excellence, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Jason C Yam
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China
- Joint Shantou International Eye Center of Shantou University and the Chinese University of Hong Kong, Shantou, China
- Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital, Hong Kong SAR, China
- Hong Kong Hub of Paediatric Excellence, The Chinese University of Hong Kong, Hong Kong SAR, China
- Hong Kong Eye Hospital, Hong Kong SAR, China
- Department of Ophthalmology, Hong Kong Children's Hospital, Hong Kong SAR, China
| |
Collapse
|
21
|
Lai KKH, Aljufairi FMAA, Li CL, Ngai AKY, Yeung CSK, Fong RHY, Yip WWK, Young AL, Pang CP, Chong KKL. Efficacy and Safety of 6-Weekly versus 12-Weekly Intravenous Methylprednisolone in Moderate-to-Severe Active Thyroid-Associated Ophthalmopathy. J Clin Med 2023; 12:jcm12093244. [PMID: 37176682 PMCID: PMC10179467 DOI: 10.3390/jcm12093244] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2023] [Revised: 04/24/2023] [Accepted: 04/28/2023] [Indexed: 05/15/2023] Open
Abstract
PURPOSE To compare the efficacy and safety of 6-weekly and 12-weekly intravenous methylprednisolone (IVMP) regimens in moderate-to-severe, active thyroid-associated orbitopathy (TAO) patients. BASIC PROCEDURES Retrospective comparative study of patients who received IVMP between January 2011 and July 2021 at the Thyroid Eye Clinic, the Chinese University of Hong Kong. Outcome measures included the 7-item clinical activity score (CAS), exophthalmos, extraocular muscle motility (EOMy), marginal reflex distance (MRD), best corrected visual acuity (BCVA), intraocular pressure (IOP), the requirement of additional treatment, and complications. MAIN FINDINGS A total of 65 (63% (41/65) females) moderate-to-severe, active TAO patients aged 50 ± 13 (25-74) years received 6-weekly (n = 22) or 12-weekly (n = 43) IVMP. Sex, age, smoking status, and Graves' disease status were comparable in the two groups (all p > 0.05). CAS at week 6 (p = 0.0279), 12 (p = 0.00228), and 52 (p = 0.0228) were lower at each time for the 12-weekly group. Exophthalmos improved more at week 6 (p = 0.0453) and 12 (p = 0.0347) in the 12-weekly group. The improvement of diplopia, MRD1, MRD2, and EOMy were comparable between the two groups. More patients in the 6-weekly group (p = 0.00169) required additional treatments including IVMP+/-ORT. Patients in the 6-weekly group who did not require additional treatment had a lower presenting CAS (p = 0.0193) than those who required additional treatment. The total numbers of adverse events were comparable between the two groups.
Collapse
Affiliation(s)
- Kenneth K H Lai
- Department of Ophthalmology, Tung Wah Eastern Hospital, Hong Kong, China
- Department of Ophthalmology and Visual Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China
| | - Fatema Mohamed Ali Abdulla Aljufairi
- Department of Ophthalmology and Visual Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China
- Department of Ophthalmology, Salmaniya Medical Complex, Government Hospitals, Manama 323, Bahrain
| | - Chi Lai Li
- Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital, Hong Kong, China
| | - Amanda K Y Ngai
- Department of Ophthalmology and Visual Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China
| | - Carly S K Yeung
- Department of Ophthalmology and Visual Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China
| | - Ryan H Y Fong
- Department of Ophthalmology and Visual Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China
| | - Wilson W K Yip
- Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital, Hong Kong, China
| | - Alvin L Young
- Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital, Hong Kong, China
| | - Chi Pui Pang
- Department of Ophthalmology and Visual Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China
| | - Kelvin K L Chong
- Department of Ophthalmology and Visual Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China
- Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital, Hong Kong, China
- Hong Kong Eye Hospital, 147K Argyle Street, Kowloon, Hong Kong, China
| |
Collapse
|
22
|
Li G, Ho M, Li S, Chen L, Iu L, Cheung CY, Brelen M, Young AL. COMPARING FUNCTIONAL AND VASCULAR LAYER OUTCOMES OF LASER PHOTOCOAGULATION VERSUS SUBTHRESHOLD MICROPULSE LASER FOR DIABETIC MACULAR EDEMA: An OCT-Angiography Study. Retina 2023; 43:823-831. [PMID: 36728901 DOI: 10.1097/iae.0000000000003711] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2022] [Accepted: 12/01/2022] [Indexed: 02/03/2023]
Abstract
PURPOSE To compare the efficacy of conventional laser and subthreshold micropulse laser (SML) in treating diabetic macular edema in terms of functional outcomes and changes in quantitative metrics for the retinal capillary and choriocapillary vascular layers. METHODS Fifty-two eyes from 52 patients with treatment-naive, clinically significant macular edema were randomly assigned to the conventional laser group or SML group in a 1:1 ratio. Best-corrected visual acuity, central macular thickness (CMT), and optical coherence tomography angiography scans were measured at baseline, 1, 3, and 6 months after treatment. RESULTS The SML group showed rapid visual recovery, improving from baseline of 0.320 ± 0.31 logarithm of the minimum angle of resolution (20/42 Snellen) to 0.270 ± 0.22 logarithm of the minimum angle of resolution (20/37 Snellen) at 1 month ( P = 0.038) and had significant improvements in CMT at 6-month post-treatment (353.88-301.00 µ m, P = 0.005). Statistically significant changes were detected across all optical coherence tomography angiography metrics, including vessel density, vessel length density, vessel diameter index, and fractal dimension, at 6 months for both groups in the deep capillary plexus and choriocapillary plexus. CONCLUSION Subthreshold micropulse laser resulted in early visual recovery and sustained macular thickness improvement in the treatment of diabetic macular edema. Microvascular perfusion parameters, including vessel density, vessel length density, and fractal dimension, improved in the deep capillary plexus and choriocapillary plexus for both treatment groups at 6 months post-treatment.
Collapse
Affiliation(s)
- Gabriel Li
- Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong SAR, China; and
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Mary Ho
- Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong SAR, China; and
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Sophia Li
- Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong SAR, China; and
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Lijia Chen
- Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong SAR, China; and
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Lawrence Iu
- Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong SAR, China; and
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Carol Y Cheung
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Marten Brelen
- Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong SAR, China; and
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Alvin L Young
- Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong SAR, China; and
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China
| |
Collapse
|
23
|
Zhang XJ, Chau DKS, Wang YM, Cheung CSH, Chan HN, Shi J, Nip KM, Tang S, Chan RCF, Lau A, Kei SH, Kam KW, Young AL, Chen LJ, Tham CC, Ohno-Matsui K, Pang CP, Yam JC. Prevalence and Characteristics of Peripapillary Gamma Zone in Children With Different Refractive Status: The Hong Kong Children Eye Study. Invest Ophthalmol Vis Sci 2023; 64:4. [PMID: 37022704 PMCID: PMC10082382 DOI: 10.1167/iovs.64.4.4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/07/2023] Open
Abstract
Purpose This study aimed to assess the prevalence and characteristics of the peripapillary gamma zone in myopic, emmetropic, and hyperopic eyes of Chinese children. Methods Overall, 1274 children aged 6 to 8 years from the Hong Kong Children Eye Study underwent ocular examinations, including measurements of cycloplegic auto-refraction and axial length (AL). The optic disc was imaged using a Spectralis optical coherence tomography (OCT) unit and a protocol involving 24 equally spaced radial B-scans. The Bruch's membrane opening (BMO) was identified in over 48 meridians in each eye. The peripapillary gamma zone was defined as the region between the BMO and the border of the optic disc, identified by the OCT. Results The prevalence of the peripapillary gamma zone was higher in myopic eyes (36.3%) than in emmetropic (16.1%) and hyperopic eyes (11.5%, P < 0.001). AL (per 1 mm; odds ratio [OR]) = 1.861, P < 0.001) and a more oval disc shape (OR = 3.144, P < 0.001) were associated with the presence of a peripapillary gamma zone after adjusting for demographic, systemic, and ocular variables. In the subgroup analysis, a longer AL was associated with the presence of a peripapillary gamma zone in myopic eyes (OR = 1.874, P < 0.001), but not in emmetropic (OR = 1.033, P = 0.913) or hyperopic eyes (OR = 1.044, P = 0.883). A peripapillary zone was not observed in the region nasal to the optic nerve in myopic eyes, in contrast to its presence in the same region in 1.9% of emmetropic eyes and 9.3% of hyperopic eyes; these intergroup differences were statistically significant (P < 0.001). Conclusions Although peripapillary gamma zones were observed in the eyes of both myopic and non-myopic children, their characteristics and distribution patterns were substantially different.
Collapse
Affiliation(s)
- Xiu Juan Zhang
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Duncan Ka Shun Chau
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Yu Meng Wang
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China
- Department of Neurobiology, Interdisciplinary Center for Neurosciences (IZN), Heidelberg University, Heidelberg, Germany
| | - Cynthia Sze Hang Cheung
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Hei-Nga Chan
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Jian Shi
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Ka Ming Nip
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Shumin Tang
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China
- Department of Ophthalmology, The First Affiliated Hospital of Fujian Medical University, China
| | - Ryan C F Chan
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Alistair Lau
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Sit Hui Kei
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Ka Wai Kam
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China
- Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital, Hong Kong SAR, China
| | - Alvin L Young
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China
- Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital, Hong Kong SAR, China
| | - Li Jia Chen
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China
- Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital, Hong Kong SAR, China
- Hong Kong Hub of Paediatric Excellence, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Clement C Tham
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China
- Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital, Hong Kong SAR, China
| | - Kyoko Ohno-Matsui
- Department of Ophthalmology and Visual Science, Tokyo Medical and Dental University, Tokyo, Japan
| | - Chi Pui Pang
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China
- Hong Kong Hub of Paediatric Excellence, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Jason C Yam
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China
- Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital, Hong Kong SAR, China
| |
Collapse
|
24
|
Chen ZJ, Ng DSC, Cen LP, Ng TK, Ho M, Brelen ME, Li TP, Lu SY, Tam POS, Young AL, Chen W, Yam JC, Chen H, Tham CC, Pang CP, Chen LJ. Multi-Polymorphism Analysis Reveals Joint Effects in Males With Chronic Central Serous Chorioretinopathy. Invest Ophthalmol Vis Sci 2023; 64:19. [PMID: 37067365 PMCID: PMC10120382 DOI: 10.1167/iovs.64.4.19] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/18/2023] Open
Abstract
Purpose Central serous chorioretinopathy (CSCR) is a leading cause of central vision impairment in the working-age population with male predilection. Knowledge about the genetic basis of CSCR and its male predilection remained limited. This study aimed to evaluate the association patterns of multiple gene variants in chronic CSCR (cCSCR) in Chinese patients. Methods This case-control genetic association study included 531 patients with cCSCR and 2383 controls from two independent Chinese cohorts. Nine single-nucleotide polymorphisms (SNPs) of six genes, namely CFH, NR3C2, GATA5, VIPR2, TNFRSF10A, and ARMS2, were genotyped in all subjects. The main outcome measures were the association of individual single-nucleotide polymorphism (SNP) with cCSCR, the sex-stratification effects of individual SNP, and joint effects of different SNPs on cCSCR. Results Association results in the two cohorts were consistent with low heterogeneities. In the combined analysis, SNPs CFH rs800292 (odds ratio [OR] = 1.25, P = 0.0020), CFH rs1329428 (OR = 1.23, P = 0.0037), and TNFRSF10A rs13278062 (OR = 1.43, P = 0.0014) were significantly associated with cCSCR. In stratification analysis by sex, 3 SNPs in CFH, rs3753394, rs800292, and rs1329428, were associated with cCSCR in male patients, but not in female patients. Joint analysis revealed that subjects homozygous for the risk alleles of CFH rs800292 and TNFRSF10A rs13278062 had over 4-fold of increased risk of cCSCR when compared with subjects homozygous for the non-risk alleles (OR = 4.06, P = 2.30 × 10-5). Conclusions This study revealed main and joint effects of SNPs in CFH and TNFRSF10A on cCSCR, and suggested CFH as a potential genetic factor underlying the male predilection of cCSCR. Further replication in other study populations is needed.
Collapse
Affiliation(s)
- Zhen Ji Chen
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong, China
| | - Danny S C Ng
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong, China
- Hong Kong Eye Hospital, Hospital Authority, Hong Kong, China
| | - Ling-Ping Cen
- Joint Shantou International Eye Centre of Shantou University and The Chinese University of Hong Kong, Shantou, Guangdong, China
| | - Tsz Kin Ng
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong, China
- Joint Shantou International Eye Centre of Shantou University and The Chinese University of Hong Kong, Shantou, Guangdong, China
| | - Mary Ho
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong, China
- Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital Eye Centre, Hong Kong, China
| | - Marten E Brelen
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong, China
- Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital Eye Centre, Hong Kong, China
| | - Tai-Ping Li
- Joint Shantou International Eye Centre of Shantou University and The Chinese University of Hong Kong, Shantou, Guangdong, China
| | - Shi Yao Lu
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong, China
| | - Pancy O S Tam
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong, China
| | - Alvin L Young
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong, China
- Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital Eye Centre, Hong Kong, China
| | - Weiqi Chen
- Joint Shantou International Eye Centre of Shantou University and The Chinese University of Hong Kong, Shantou, Guangdong, China
| | - Jason C Yam
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong, China
- Hong Kong Eye Hospital, Hospital Authority, Hong Kong, China
- Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital Eye Centre, Hong Kong, China
| | - Haoyu Chen
- Joint Shantou International Eye Centre of Shantou University and The Chinese University of Hong Kong, Shantou, Guangdong, China
| | - Clement C Tham
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong, China
- Hong Kong Eye Hospital, Hospital Authority, Hong Kong, China
- Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital Eye Centre, Hong Kong, China
| | - Chi Pui Pang
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong, China
- Joint Shantou International Eye Centre of Shantou University and The Chinese University of Hong Kong, Shantou, Guangdong, China
| | - Li Jia Chen
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong, China
- Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital Eye Centre, Hong Kong, China
| |
Collapse
|
25
|
Kam KW, Chee ASH, Tang RCY, Zhang Y, Zhang XJ, Wang YM, Li SL, Chen LJ, Young AL, Tham CC, Pang CP, Yam JC. Differential compensatory role of internal astigmatism in school children and adults: The Hong Kong Children Eye Study. Eye (Lond) 2023; 37:1107-1113. [PMID: 35473966 PMCID: PMC10102244 DOI: 10.1038/s41433-022-02072-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2021] [Revised: 03/30/2022] [Accepted: 04/08/2022] [Indexed: 11/09/2022] Open
Abstract
BACKGROUND To compare the prevalence of refractive (RA), corneal (CA), and internal astigmatism (IA) in Hong Kong children and adults and evaluate the role of IA in compensating for total astigmatism and its relations to myopic traits. METHODS The Hong Kong Children Eye Study is a population-based cross-sectional study. Totally 3704 school children (mean age 7.5 ± 1.0 years) and 5577 adults (mean age 41.1 ± 7.5 years), who were their parents, were recruited. Cycloplegic and non-cycloplegic refractive cylinders were obtained from children and adults, respectively. Spearman correlation was applied to detect associations between astigmatism, ocular biometrics, refraction, and lens power. Astigmatism compensation factor (CF) was derived from the power vector analysis J0 and J45. RESULTS The prevalence of RA (≤-1.0 D), CA (≥+1.0 D) and IA (≥+1.0 D) was 21.9%, 63.9%, and 9.9% in children, and 30.9%, 39.5%, and 23.7% in adults respectively. The mean RA, CA and IA values in children and adults were -0.69 ± 0.66 D, +1.14 ± 0.61 D, +0.62 ± 0.32 D, and -0.80 ± 0.74 D, +0.97 ± 0.69 D, and +0.76 ± 0.43 D, respectively. In adults and children, IA was negatively correlated with axial length (p < 0.0001), but positively correlated with spherical values and equivalent (p < 0.0001), suggesting an association of astigmatism with myopic traits. A greater proportion of children exhibited compensation by IA than adults in J0 (86.6% vs. 66.0%, p < 0.0001) and J45 components (55.5% vs. 41.7%, p < 0.0001). CONCLUSIONS Chinese children in Hong Kong exhibit a higher prevalence of RA and CA than in other cities. Children displayed a greater compensation by IA than adults, suggesting an age-related attenuation of IA compensation. IA is associated with myopic traits.
Collapse
Affiliation(s)
- Ka Wai Kam
- Department of Ophthalmology & Visual Sciences, The Chinese University of Hong Kong, Hong Kong, China
- Department of Ophthalmology & Visual Sciences, Prince of Wales Hospital, Hong Kong, China
| | - Arnold Shau Hei Chee
- Department of Ophthalmology & Visual Sciences, The Chinese University of Hong Kong, Hong Kong, China
- Department of Ophthalmology & Visual Sciences, Prince of Wales Hospital, Hong Kong, China
| | - Rex Chin Yung Tang
- Department of Ophthalmology & Visual Sciences, The Chinese University of Hong Kong, Hong Kong, China
| | - Yuzhou Zhang
- Department of Ophthalmology & Visual Sciences, The Chinese University of Hong Kong, Hong Kong, China
| | - Xiu Juan Zhang
- Department of Ophthalmology & Visual Sciences, The Chinese University of Hong Kong, Hong Kong, China
| | - Yu Meng Wang
- Department of Ophthalmology & Visual Sciences, The Chinese University of Hong Kong, Hong Kong, China
| | - Sophia Ling Li
- Department of Ophthalmology & Visual Sciences, The Chinese University of Hong Kong, Hong Kong, China
- Department of Ophthalmology & Visual Sciences, Prince of Wales Hospital, Hong Kong, China
| | - Li Jia Chen
- Department of Ophthalmology & Visual Sciences, The Chinese University of Hong Kong, Hong Kong, China
- Department of Ophthalmology & Visual Sciences, Prince of Wales Hospital, Hong Kong, China
- Hong Kong Hub of Paediatric Excellence, The Chinese University of Hong Kong, Hong Kong, China
| | - Alvin L Young
- Department of Ophthalmology & Visual Sciences, The Chinese University of Hong Kong, Hong Kong, China
- Department of Ophthalmology & Visual Sciences, Prince of Wales Hospital, Hong Kong, China
| | - Clement C Tham
- Department of Ophthalmology & Visual Sciences, The Chinese University of Hong Kong, Hong Kong, China
- Department of Ophthalmology & Visual Sciences, Prince of Wales Hospital, Hong Kong, China
- Hong Kong Hub of Paediatric Excellence, The Chinese University of Hong Kong, Hong Kong, China
- Hong Kong Eye Hospital, Hong Kong, China
- Department of Ophthalmology, Hong Kong Children's Hospital, Hong Kong, China
| | - Chi Pui Pang
- Department of Ophthalmology & Visual Sciences, The Chinese University of Hong Kong, Hong Kong, China
- Hong Kong Hub of Paediatric Excellence, The Chinese University of Hong Kong, Hong Kong, China
| | - Jason C Yam
- Department of Ophthalmology & Visual Sciences, The Chinese University of Hong Kong, Hong Kong, China.
- Department of Ophthalmology & Visual Sciences, Prince of Wales Hospital, Hong Kong, China.
- Hong Kong Hub of Paediatric Excellence, The Chinese University of Hong Kong, Hong Kong, China.
- Hong Kong Eye Hospital, Hong Kong, China.
- Department of Ophthalmology, Hong Kong Children's Hospital, Hong Kong, China.
| |
Collapse
|
26
|
Zhang XJ, Zhang Y, Kam KW, Tang F, Li Y, Ng MPH, Young AL, Ip P, Tham CC, Chen LJ, Pang CP, Yam JC. Prevalence of Myopia in Children Before, During, and After COVID-19 Restrictions in Hong Kong. JAMA Netw Open 2023; 6:e234080. [PMID: 36947037 PMCID: PMC10034576 DOI: 10.1001/jamanetworkopen.2023.4080] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 03/23/2023] Open
Abstract
Importance Childhood myopia increased during the COVID-19 pandemic. Limited evidence exists about whether myopia development was reversed or worsened after the lockdown. Objective To determine the prevalence of myopia and its associated factors before, during, and after COVID-19 restrictions. Design, Setting, and Participants This population-based, repeated cross-sectional study evaluated children aged 6 to 8 years from the Hong Kong Children Eye Study between 2015 and 2021 in 3 cohorts: before COVID-19 (2015-2019), during COVID-19 restrictions (2020), and after COVID-19 restrictions were lifted (2021). Exposures All the children received ocular examinations, including cycloplegic autorefraction and axial length. Data about the children's lifestyle, including time spent outdoors, near-work time, and screen time, were collected from a standardized questionnaire. Main Outcomes and Measures The main outcomes were the prevalence of myopia, mean spherical equivalent refraction, axial length, changes in lifestyle, and the associated factors over 7 years. Data were analyzed using descriptive statistics, logistic regression, and generalized estimating equations. Results Of 20 527 children (mean [SD] age, 7.33 [0.89] years; 52.8% boys and 47.2% girls), myopia prevalence was stable from 2015 to 2019 (23.5%-24.9%; P = .90) but increased to 28.8% (P < .001) in 2020 and 36.2% (P < .001) in 2021. The mean (SD) time spent outdoors was much lower in 2020 (0.85 [0.53] h/d; P < .001) and 2021 (1.26 [0.48] h/d; P < .001) compared with pre-COVID-19 levels (1.40 [0.47]-1.46 [0.65] h/d). The trend was reversed for total near-work time and screen time. High myopia prevalence was associated with the COVID-19 pandemic (odds ratio [OR], 1.40; 95% CI, 1.28-1.54; P < .001), younger age (OR, 1.84; 95% CI, 1.76-1.93; P < .001), male sex (OR, 1.11; 95% CI, 1.03-1.21; P = .007), lower family income (OR, 1.05; 95% CI, 1.00-1.09; P = .04), and parental myopia (OR, 1.61; 95% CI, 1.52-1.70; P < .001). During the pandemic, mean (SD) near-work and screen times in children from lower-income families were 5.16 (2.05) h/d and 3.44 (1.97) h/d, more than from higher-income families (4.83 [1.85] and 2.90 [1.61] h/d, respectively). Conclusions and Relevance The findings of this cross-sectional study revealed that after COVID-19 restrictions were lifted in Hong Kong, myopia prevalence among children was higher than before the pandemic, and lifestyle did not return to pre-COVID-19 levels. Younger children and those from low-income families were at a higher risk of myopia development during the pandemic, suggesting that collective efforts for myopia control should be advocated for these groups.
Collapse
Affiliation(s)
- Xiu Juan Zhang
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China
- Joint Shantou International Eye Center of Shantou University and The Chinese University of Hong Kong, Shantou, China
| | - Yuzhou Zhang
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Ka Wai Kam
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China
- Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital, Hong Kong SAR, China
| | - Fangyao Tang
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Yi Li
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Mandy P H Ng
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Alvin L Young
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China
- Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital, Hong Kong SAR, China
| | - Patrick Ip
- Department of Paediatrics and Adolescent Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong SAR, China
| | - Clement C Tham
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China
- Joint Shantou International Eye Center of Shantou University and The Chinese University of Hong Kong, Shantou, China
- Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital, Hong Kong SAR, China
- Hong Kong Eye Hospital, Kowloon, Hong Kong SAR, China
- Department of Ophthalmology, Hong Kong Children's Hospital, Hong Kong SAR, China
- Hong Kong Hub of Paediatric Excellence, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Li Jia Chen
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China
- Joint Shantou International Eye Center of Shantou University and The Chinese University of Hong Kong, Shantou, China
- Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital, Hong Kong SAR, China
- Hong Kong Hub of Paediatric Excellence, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Chi Pui Pang
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China
- Joint Shantou International Eye Center of Shantou University and The Chinese University of Hong Kong, Shantou, China
- Hong Kong Hub of Paediatric Excellence, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Jason C Yam
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China
- Joint Shantou International Eye Center of Shantou University and The Chinese University of Hong Kong, Shantou, China
- Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital, Hong Kong SAR, China
- Hong Kong Eye Hospital, Kowloon, Hong Kong SAR, China
- Department of Ophthalmology, Hong Kong Children's Hospital, Hong Kong SAR, China
- Hong Kong Hub of Paediatric Excellence, The Chinese University of Hong Kong, Hong Kong SAR, China
| |
Collapse
|
27
|
Yam JC, Zhang XJ, Zhang Y, Yip BHK, Tang F, Wong ES, Bui CHT, Kam KW, Ng MPH, Ko ST, Yip WW, Young AL, Tham CC, Chen LJ, Pang CP. Effect of Low-Concentration Atropine Eyedrops vs Placebo on Myopia Incidence in Children: The LAMP2 Randomized Clinical Trial. JAMA 2023; 329:472-481. [PMID: 36786791 PMCID: PMC9929700 DOI: 10.1001/jama.2022.24162] [Citation(s) in RCA: 22] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/17/2022] [Accepted: 12/13/2022] [Indexed: 02/15/2023]
Abstract
Importance Early onset of myopia is associated with high myopia later in life, and myopia is irreversible once developed. Objective To evaluate the efficacy of low-concentration atropine eyedrops at 0.05% and 0.01% concentration for delaying the onset of myopia. Design, Setting, and Participants This randomized, placebo-controlled, double-masked trial conducted at the Chinese University of Hong Kong Eye Centre enrolled 474 nonmyopic children aged 4 through 9 years with cycloplegic spherical equivalent between +1.00 D to 0.00 D and astigmatism less than -1.00 D. The first recruited participant started treatment on July 11, 2017, and the last participant was enrolled on June 4, 2020; the date of the final follow-up session was June 4, 2022. Interventions Participants were assigned at random to the 0.05% atropine (n = 160), 0.01% atropine (n = 159), and placebo (n = 155) groups and had eyedrops applied once nightly in both eyes over 2 years. Main Outcomes and Measures The primary outcomes were the 2-year cumulative incidence rate of myopia (cycloplegic spherical equivalent of at least -0.50 D in either eye) and the percentage of participants with fast myopic shift (spherical equivalent myopic shift of at least 1.00 D). Results Of the 474 randomized patients (mean age, 6.8 years; 50% female), 353 (74.5%) completed the trial. The 2-year cumulative incidence of myopia in the 0.05% atropine, 0.01% atropine, and placebo groups were 28.4% (33/116), 45.9% (56/122), and 53.0% (61/115), respectively, and the percentages of participants with fast myopic shift at 2 years were 25.0%, 45.1%, and 53.9%. Compared with the placebo group, the 0.05% atropine group had significantly lower 2-year cumulative myopia incidence (difference, 24.6% [95% CI, 12.0%-36.4%]) and percentage of patients with fast myopic shift (difference, 28.9% [95% CI, 16.5%-40.5%]). Compared with the 0.01% atropine group, the 0.05% atropine group had significantly lower 2-year cumulative myopia incidence (difference, 17.5% [95% CI, 5.2%-29.2%]) and percentage of patients with fast myopic shift (difference, 20.1% [95% CI, 8.0%-31.6%]). The 0.01% atropine and placebo groups were not significantly different in 2-year cumulative myopia incidence or percentage of patients with fast myopic shift. Photophobia was the most common adverse event and was reported by 12.9% of participants in the 0.05% atropine group, 18.9% in the 0.01% atropine group, and 12.2% in the placebo group in the second year. Conclusions and Relevance Among children aged 4 to 9 years without myopia, nightly use of 0.05% atropine eyedrops compared with placebo resulted in a significantly lower incidence of myopia and lower percentage of participants with fast myopic shift at 2 years. There was no significant difference between 0.01% atropine and placebo. Further research is needed to replicate the findings, to understand whether this represents a delay or prevention of myopia, and to assess longer-term safety. Trial Registration Chinese Clinical Trial Registry: ChiCTR-IPR-15006883.
Collapse
Affiliation(s)
- Jason C. Yam
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong
- Hong Kong Eye Hospital, Hong Kong
- Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital, Hong Kong
- Hong Kong Hub of Paediatric Excellence, The Chinese University of Hong Kong, Hong Kong, Hong Kong
- Department of Ophthalmology, Hong Kong Children’s Hospital, Hong Kong
| | - Xiu Juan Zhang
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong
| | - Yuzhou Zhang
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong
| | - Benjamin H. K. Yip
- Jockey Club School of Public Health and Primary Care, The Chinese University of Hong Kong, Hong Kong
| | - Fangyao Tang
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong
| | - Emily S. Wong
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong
- Hong Kong Eye Hospital, Hong Kong
- Department of Ophthalmology, Hong Kong Children’s Hospital, Hong Kong
| | - Christine H. T. Bui
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong
| | - Ka Wai Kam
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong
- Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital, Hong Kong
| | - Mandy P. H. Ng
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong
| | - Simon T. Ko
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong
- Department of Ophthalmology, Hong Kong Children’s Hospital, Hong Kong
| | - Wilson W.K. Yip
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong
- Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital, Hong Kong
| | - Alvin L. Young
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong
- Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital, Hong Kong
| | - Clement C. Tham
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong
- Hong Kong Eye Hospital, Hong Kong
- Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital, Hong Kong
- Hong Kong Hub of Paediatric Excellence, The Chinese University of Hong Kong, Hong Kong, Hong Kong
- Department of Ophthalmology, Hong Kong Children’s Hospital, Hong Kong
| | - Li Jia Chen
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong
- Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital, Hong Kong
- Hong Kong Hub of Paediatric Excellence, The Chinese University of Hong Kong, Hong Kong, Hong Kong
| | - Chi Pui Pang
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong
- Hong Kong Hub of Paediatric Excellence, The Chinese University of Hong Kong, Hong Kong, Hong Kong
| |
Collapse
|
28
|
Affiliation(s)
- Ka Wai Kam
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China
- Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital, Hong Kong SAR, China
| | | | - Alvin L Young
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China.
- Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital, Hong Kong SAR, China.
| |
Collapse
|
29
|
Lai KKH, Li EYM, Chan RYC, Wong KCW, Yu JKS, Cheuk W, Hui YH, Cheng ACO, Chin JKY, Ip SK, Chan WH, Kwok JSW, Lam WC, Io IYF, Mak TST, Li KKW, Lam NM, Yip WWK, Young AL, Chan E, Ko CKL, Ko STC, Yuen HKL, Tham CCY, Pang CP, Chong KKL. Malignancies in Immunoglobulin G4-related ophthalmic disease. Eur J Ophthalmol 2023; 33:171-181. [PMID: 35675196 DOI: 10.1177/11206721221102274] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
PURPOSE Clinical phenotypes in Immunoglobulin G4-related disease (IgG4-RD) according to the patterns of affecting organs have different risks of malignancies. We attempt to determine the association of malignancies with IgG4-related ophthalmic disease (IgG4-ROD). DESIGN Retrospective cohort study. METHODS Review of medical records, orbital images and histopathology reports in a territory-wide cohort of biopsy proven IgG4-ROD patients from 2005-2019. FINDINGS Among 122 patients who had biopsies taken from adnexal lesions including lacrimal glands (n = 108), orbital mass (n = 30), infiltrated orbital fat (n = 10), conjunctiva (n = 2) or extraocular muscles (n = 3), 13% (16/122) developed malignancies over 73 ± 48months' follow-up. There were 9 cases of ocular adnexal lymphoma (OAL) and 7 extra-orbital malignancies. Compared with the general population, the incidence of OAL was significantly higher (standardized incidence ratios, SIRs = 10.0, 95%CI = 4.5-17.6) while that of extra-orbital malignancies was similar. The SIRs was highest within the first year (SIR = 46.7, 95%CI = 18.5-87.6) when 7 OAL were concomitantly diagnosed. Patients who developed OAL or extra-orbital malignancies were older than other patients at IgG4-ROD diagnosis (64.9 ± 7.1, 68.3 ± 8.5 versus 55.2 ± 15.0 years, P < 0.05). Asymmetric lacrimal gland enlargement (78% versus 13%), lack of frontal (0% versus 12%) or infraorbital nerve enlargement (0% versus 36%) were associated with OAL (all P < 0.05). Pre-treatment serum IgG4 level or extra-orbital IgG4-RD involvement was similar among patients with or without malignancies. CONCLUSION In this biopsy-proven IgG4-ROD cohort, 7% developed OAL which was 10 times higher than the general population. Patients with asymmetric lacrimal gland enlargement or without trigeminal nerves involvement radiologically were associated with OAL.
Collapse
Affiliation(s)
- Kenneth K H Lai
- Department of Ophthalmology, 66380Tung Wah Eastern Hospital, Hong Kong
| | | | - Regine Y C Chan
- Department of Ophthalmology and Visual Sciences, 13621Prince of Wales Hospital, Hong Kong
| | - Kenneth C W Wong
- Department of Clinical Oncology, 13621Prince of Wales Hospital, Hong Kong
| | - Jimmy K S Yu
- Department of Clinical Oncology, 13621Prince of Wales Hospital, Hong Kong
| | - W Cheuk
- Department of Pathology, Queen Elizabeth Hospital, Hong Kong
| | - Y H Hui
- Department of Nuclear Medicine, Queen Elizabeth Hospital, Hong Kong
| | - Andy C O Cheng
- Department of Ophthalmology, 13620Hong Kong Sanatorium & Hospital, Hong Kong
| | - Joyce K Y Chin
- Department of Ophthalmology and Visual Sciences, 13621Prince of Wales Hospital, Hong Kong
| | - S K Ip
- Department of Ophthalmology, 36658Tuen Mun Hospital, Hong Kong
| | - W H Chan
- Department of Ophthalmology, 36658Tuen Mun Hospital, Hong Kong
| | - Jeremy S W Kwok
- Department of Ophthalmology, Grantham Hospital, Hong Kong.,Department of Ophthalmology, 25809The University of Hong Kong, Hong Kong
| | - W C Lam
- Department of Ophthalmology, Grantham Hospital, Hong Kong.,Department of Ophthalmology, 25809The University of Hong Kong, Hong Kong
| | - Ida Y F Io
- Department of Ophthalmology, 36611Caritas Medical Center, Hong Kong
| | - Theresa S T Mak
- Department of Ophthalmology, 36621United Christian Hospital, Hong Kong
| | - Kenneth K W Li
- Department of Ophthalmology, 36621United Christian Hospital, Hong Kong
| | - N M Lam
- 71113Hong Kong Eye Hospital, Hong Kong
| | - Wilson W K Yip
- Department of Ophthalmology and Visual Sciences, 13621Prince of Wales Hospital, Hong Kong
| | - Alvin L Young
- Department of Ophthalmology and Visual Sciences, 13621Prince of Wales Hospital, Hong Kong
| | - Edwin Chan
- Department of Ophthalmology, 66380Tung Wah Eastern Hospital, Hong Kong
| | - Callie K L Ko
- Department of Ophthalmology, 66380Tung Wah Eastern Hospital, Hong Kong
| | - Simon T C Ko
- Department of Ophthalmology, 66380Tung Wah Eastern Hospital, Hong Kong
| | - Hunter K L Yuen
- 71113Hong Kong Eye Hospital, Hong Kong.,Department of Ophthalmology and Visual Sciences, 26451The Chinese University of Hong Kong, Hong Kong
| | - Clement C Y Tham
- Department of Ophthalmology and Visual Sciences, 26451The Chinese University of Hong Kong, Hong Kong
| | - Chi Pui Pang
- Department of Ophthalmology and Visual Sciences, 26451The Chinese University of Hong Kong, Hong Kong
| | - Kelvin K L Chong
- Department of Ophthalmology and Visual Sciences, 13621Prince of Wales Hospital, Hong Kong.,Department of Ophthalmology and Visual Sciences, 26451The Chinese University of Hong Kong, Hong Kong
| |
Collapse
|
30
|
Kam KW, Chee ASH, Zhang Y, Tang RCY, Chan JTC, Zhang XJ, Wang YM, Chan RCF, Chu WK, Ip P, Young AL, Tham CC, Pang CP, Chen LJ, Yam JC. Association of Maternal and Paternal Astigmatism With Child Astigmatism in the Hong Kong Children Eye Study. JAMA Netw Open 2022; 5:e2247795. [PMID: 36542383 PMCID: PMC9856878 DOI: 10.1001/jamanetworkopen.2022.47795] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
IMPORTANCE Parental astigmatism is a factor associated with risk for development of child astigmatism; however, the magnitude of the association has not been determined. OBJECTIVE To determine the association between parental and child astigmatism. DESIGN, SETTING, AND PARTICIPANTS This population-based, cross-sectional study included participants from familial trios, each comprising a child aged 6 to 8 years and both parents, recruited from the Hong Kong Children Eye Study. No restriction criteria were set on the children in terms of refractive status. Data were analyzed from February to June 2022. EXPOSURES Cycloplegic autorefraction and autokeratometry were conducted on the children, whereas noncycloplegic autorefraction and autokeratometry were conducted on their parents. The children were categorized into 6 groups on the basis of the severity of astigmatism of both parents. Information on parental education, family income, and children's outdoor and near work time were obtained by questionnaires. MAIN OUTCOMES AND MEASURES The primary outcome was the odds of child astigmatism among the 6 categories of children. Associations of factors with child astigmatism were evaluated by logistic regression analyses. RESULTS A total of 17 124 participants from 5708 trios (2964 boys and 2754 girls) at a mean (SD) age of 7.32 (0.87) years, and 11 416 parents were examined. Astigmatism of 1.0 D or greater in both parents was associated with greater odds of refractive astigmatism (RA) (odds ratio [OR], 1.62; 95% CI, 1.15-2.26) and corneal astigmatism (CA) (OR, 1.94; 95% CI, 1.50-2.50) in the child. The respective ORs increased to 3.10 (95% CI, 1.34-7.21) and 4.31 (95% CI, 1.76-10.55) when both parents had astigmatism 2.0 D or greater. Higher parental astigmatism conferred higher risks for both RA and CA in children (P for trend <.001). Parental astigmatism was significantly associated with greater odds of corresponding child astigmatism (maternal RA: OR, 0.76; 95% CI, 0.68-0.84; paternal RA: OR, 0.82; 95% CI, 0.74-0.91; maternal CA: OR, 1.70; 95% CI, 1.51-1.93; paternal CA: OR, 1.33; 95% CI, 1.19-1.49). CONCLUSIONS AND RELEVANCE The findings of this cross-sectional study suggest that parental astigmatism may confer an independent and dose-dependent association with child astigmatism. Children with parents with astigmatism should have early eye examinations for timely detection of astigmatism to facilitate age-appropriate vision correction and visual development.
Collapse
Affiliation(s)
- Ka Wai Kam
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong Eye Hospital, Hong Kong SAR, China
- Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital, Hong Kong SAR, China
| | - Arnold S. H. Chee
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong Eye Hospital, Hong Kong SAR, China
- Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital, Hong Kong SAR, China
| | - Yuzhou Zhang
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong Eye Hospital, Hong Kong SAR, China
| | - Rex C. Y. Tang
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong Eye Hospital, Hong Kong SAR, China
| | - Jason T. C. Chan
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong Eye Hospital, Hong Kong SAR, China
| | - Xiu Juan Zhang
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong Eye Hospital, Hong Kong SAR, China
| | - Yu Meng Wang
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong Eye Hospital, Hong Kong SAR, China
| | - Ryan C. F. Chan
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong Eye Hospital, Hong Kong SAR, China
| | - Wai Kit Chu
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong Eye Hospital, Hong Kong SAR, China
- Hong Kong Hub of Paediatric Excellence, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Patrick Ip
- Department of Paediatrics and Adolescent Medicine, LKS Faculty of Medicine, The University of Hong Kong, Hong Kong SAR, China
| | - Alvin L. Young
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong Eye Hospital, Hong Kong SAR, China
- Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital, Hong Kong SAR, China
| | - Clement C. Tham
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong Eye Hospital, Hong Kong SAR, China
- Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital, Hong Kong SAR, China
- Hong Kong Hub of Paediatric Excellence, The Chinese University of Hong Kong, Hong Kong SAR, China
- Hong Kong Eye Hospital, Kowloon, Hong Kong SAR, China
- Department of Ophthalmology, Hong Kong Children’s Hospital, Hong Kong SAR, China
| | - Chi Pui Pang
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong Eye Hospital, Hong Kong SAR, China
- Hong Kong Hub of Paediatric Excellence, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Li Jia Chen
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong Eye Hospital, Hong Kong SAR, China
- Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital, Hong Kong SAR, China
- Hong Kong Hub of Paediatric Excellence, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Jason C. Yam
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong Eye Hospital, Hong Kong SAR, China
- Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital, Hong Kong SAR, China
- Hong Kong Hub of Paediatric Excellence, The Chinese University of Hong Kong, Hong Kong SAR, China
- Hong Kong Eye Hospital, Kowloon, Hong Kong SAR, China
- Department of Ophthalmology, Hong Kong Children’s Hospital, Hong Kong SAR, China
| |
Collapse
|
31
|
Zhang X, Cheung SSL, Chan HN, Zhang Y, Wang YM, Yip BH, Kam KW, Yu M, Cheng CY, Young AL, Kwan MYW, Ip P, Chong KKL, Tham CC, Chen LJ, Pang CP, Yam JCS. Myopia incidence and lifestyle changes among school children during the COVID-19 pandemic: a population-based prospective study. Br J Ophthalmol 2022; 106:1772-1778. [PMID: 34340973 PMCID: PMC8359867 DOI: 10.1136/bjophthalmol-2021-319307] [Citation(s) in RCA: 59] [Impact Index Per Article: 29.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2021] [Accepted: 06/25/2021] [Indexed: 12/21/2022]
Abstract
BACKGROUND The impacts of social restrictions for COVID-19 on children's vision and lifestyle remain unknown. AIMS To investigate myopia incidence, spherical equivalent refraction (SER) and lifestyle changes among schoolchildren during the COVID-19 pandemic. METHODS Two separate longitudinal cohorts of children aged 6-8 years in Hong Kong were included. The COVID-19 cohort was recruited at the beginning of the COVID-19 outbreak, whereas the pre-COVID-19 cohort was recruited before the COVID-19 pandemic. All children received ocular examinations, and answered a standardised questionnaire relating to their lifestyle, including time spent on outdoor activities and near work, both at baseline and at follow-up visits. RESULTS A total of 1793 subjects were recruited, of whom 709 children comprised the COVID-19 cohort with 7.89±2.30 months of follow-up, and 1084 children comprised the pre-COVID-19 cohort with 37.54±3.12 months of follow-up. The overall incidence was 19.44% in the COVID-19 cohort, and 36.57% in pre-COVID-19 cohort. During the COVID-19 pandemic, the change in SER and axial length was -0.50±0.51 D and 0.29±0.35 mm, respectively; the time spent on outdoor activities decreased from 1.27±1.12 to 0.41±0.90 hours/day (p<0.001), while screen time increased from 2.45±2.32 to 6.89±4.42 hours/day (p<0.001). CONCLUSIONS We showed a potential increase in myopia incidence, significant decrease in outdoor time and increase in screen time among schoolchildren in Hong Kong during the COVID-19 pandemic. Our results serve to warn eye care professionals, and also policy makers, educators and parents, that collective efforts are needed to prevent childhood myopia-a potential public health crisis as a result of COVID-19.
Collapse
Affiliation(s)
- Xiujuan Zhang
- Department of Ophthalmology & Visual Sciences, The Chinese University of Hong Kong, Hong Kong, Hong Kong
| | - Stephanie S L Cheung
- Department of Ophthalmology & Visual Sciences, The Chinese University of Hong Kong, Hong Kong, Hong Kong
- Hong Kong Eye Hospital, Hong Kong, Hong Kong
- Department of Ophthalmology, Hong Kong Children's Hospital, Hong Kong, Hong Kong
| | - Hei-Nga Chan
- Department of Ophthalmology & Visual Sciences, The Chinese University of Hong Kong, Hong Kong, Hong Kong
| | - Yuzhou Zhang
- Department of Ophthalmology & Visual Sciences, The Chinese University of Hong Kong, Hong Kong, Hong Kong
| | - Yu Meng Wang
- Department of Ophthalmology & Visual Sciences, The Chinese University of Hong Kong, Hong Kong, Hong Kong
| | - Benjamin H Yip
- The Jockey Club School of Public Health and Primary Care Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, Hong Kong
| | - Ka Wai Kam
- Department of Ophthalmology & Visual Sciences, The Chinese University of Hong Kong, Hong Kong, Hong Kong
- Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital, Hong Kong, Hong Kong
| | - Marco Yu
- Ocular Epidemiology Research Group, Singapore Eye Research Institute, Singapore
| | - Ching-Yu Cheng
- Ocular Epidemiology Research Group, Singapore Eye Research Institute, Singapore
| | - Alvin L Young
- Department of Ophthalmology & Visual Sciences, The Chinese University of Hong Kong, Hong Kong, Hong Kong
- Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital, Hong Kong, Hong Kong
| | - Mike Y W Kwan
- Department of Paediatrics and Adolescent Medicine, Princess Margaret Hospital, Hong Kong, Hong Kong
| | - Patrick Ip
- Department of Paediatrics and Adolescent Medicine, University of Hong Kong, Hong Kong, Hong Kong
| | - Kelvin Kam-Lung Chong
- Department of Ophthalmology & Visual Sciences, The Chinese University of Hong Kong, Hong Kong, Hong Kong
- Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital, Hong Kong, Hong Kong
| | - Clement C Tham
- Department of Ophthalmology & Visual Sciences, The Chinese University of Hong Kong, Hong Kong, Hong Kong
- Hong Kong Eye Hospital, Hong Kong, Hong Kong
- Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital, Hong Kong, Hong Kong
- Hong Kong Hub of Paediatric Excellence, The Chinese University of Hong Kong, Hong Kong, Hong Kong
| | - Li Jia Chen
- Department of Ophthalmology & Visual Sciences, The Chinese University of Hong Kong, Hong Kong, Hong Kong
- Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital, Hong Kong, Hong Kong
- Hong Kong Hub of Paediatric Excellence, The Chinese University of Hong Kong, Hong Kong, Hong Kong
| | - Chi-Pui Pang
- Department of Ophthalmology & Visual Sciences, The Chinese University of Hong Kong, Hong Kong, Hong Kong
- Hong Kong Hub of Paediatric Excellence, The Chinese University of Hong Kong, Hong Kong, Hong Kong
| | - Jason C S Yam
- Department of Ophthalmology & Visual Sciences, The Chinese University of Hong Kong, Hong Kong, Hong Kong
- Hong Kong Eye Hospital, Hong Kong, Hong Kong
- Department of Ophthalmology, Hong Kong Children's Hospital, Hong Kong, Hong Kong
- Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital, Hong Kong, Hong Kong
- Hong Kong Hub of Paediatric Excellence, The Chinese University of Hong Kong, Hong Kong, Hong Kong
| |
Collapse
|
32
|
Abstract
PURPOSE We hypothesize that the presence of iris depigmentation is associated with the prediction of cytomegalovirus (CMV) as the etiology of chronic or recurrent anterior uveitis. METHODS A prospective cohort study on patients with recurrent or chronic anterior uveitis. Pre-operative data on iris depigmentation and corneal endothelial cell densities were compared between eyes with and without CMV. RESULTS Forty-one eyes of 38 subjects with a mean age of 61.1 ± 11.2 years old were recruited. Seventeen eyes were positive for CMV. A greater proportion of eyes with CMV showed severe or diffuse iris depigmentation than eyes without CMV, and possessed larger corneal endothelial cells (p = .028). When severe iris depigmentation was present with a reduced endothelial cell density, the positive and negative predictive values were raised to 100.0% and 64.9% from 41.5% and 58.5%, respectively. CONCLUSION Iris depigmentation is a potential clinical biomarker in predicting CMV in chronic or recurrent anterior uveitis.
Collapse
Affiliation(s)
- Ka Wai Kam
- Department of Ophthalmology & Visual Sciences, The Chinese University of Hong Kong, Hong Kong, Hong Kong.,Department of Ophthalmology & Visual Sciences, Prince of Wales Hospital, Hong Kong, Hong Kong
| | - Chung Hei Wong
- Department of Ophthalmology & Visual Sciences, The Chinese University of Hong Kong, Hong Kong, Hong Kong
| | - Mary Ho
- Department of Ophthalmology & Visual Sciences, The Chinese University of Hong Kong, Hong Kong, Hong Kong.,Department of Ophthalmology & Visual Sciences, Prince of Wales Hospital, Hong Kong, Hong Kong
| | - Ryan Kin Ho Sze
- Department of Microbiology, The Chinese University of Hong Kong, Hong Kong, Hong Kong
| | - Paul K S Chan
- Department of Microbiology, The Chinese University of Hong Kong, Hong Kong, Hong Kong
| | - Alvin L Young
- Department of Ophthalmology & Visual Sciences, The Chinese University of Hong Kong, Hong Kong, Hong Kong.,Department of Ophthalmology & Visual Sciences, Prince of Wales Hospital, Hong Kong, Hong Kong
| |
Collapse
|
33
|
Lai KKH, Chu WCW, Li EYM, Chan RYC, Wei Y, Jia R, Cheng ACO, Chan KKW, Chin JKY, Kwok JSW, Io IYF, Yip NKF, Li KKW, Chan WH, Lam NM, Yip WWK, Young AL, Chan E, Ko CKL, Ko STC, Yuen HKL, Tham CCY, Pang CP, Chong KKL. Radiological Determinants of Complicated Immunoglobulin G4-Related Ophthalmic Disease: A Territory-Wide Cohort Study. Asia Pac J Ophthalmol (Phila) 2022; 11:417-424. [PMID: 36179335 DOI: 10.1097/apo.0000000000000552] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2022] [Accepted: 06/10/2022] [Indexed: 11/27/2022] Open
Abstract
PURPOSE To evaluate the presenting radiological features of immunoglobulin G4-related ophthalmic disease (IgG4-ROD) and their associations with IgG4-related optic neuropathy (IgG4-RON), and IgG4-related ocular adnexal lymphoma (IgG4-ROL). METHODS A territory-wide, biopsy-proven, Chinese cohort. Masked review of orbital images, medical records, and histopathology reports. RESULTS A total of 115 (94%) of the 122 patients in our cohort had preoperative orbital images (computed tomography=105, magnetic resonance imaging=40). Among them, 103/115 (90%) showed enlarged lacrimal glands, and 91 (88%) were bilateral. Nerve enlargement was observed: infraorbital in 31/115 (27%) patients and frontal in 17/115 (15%), 10 and 9 being bilateral, respectively. At least 1 or more extraocular muscle (EOM) enlargement was found in 41/115 (37%) patients, bilaterally in 20. Lateral rectus occurred in 30 (73%) of these 41 EOM patients and inferior rectus in 28 (68%). Two adjacent EOMs (inferior and lateral recti in 11 patients, inferior and medial recti in 7 patients) or multiple EOMs (at least 3) were enlarged in 23/41 (56%) and 13/41 (32%) of the patients, respectively. Intraconal lesions (67% vs 11%, P<0.05), infraorbital (83% vs 23%, P<0.005), or frontal (50% vs 15%, P<0.05) nerve enlargement was significantly associated with IgG4-RON (6 patients) by univariate analyses. Asymmetric lacrimal gland enlargement and discrete orbital mass (both P<0.05) were associated with IgG4-ROL (9 patients) by multivariate analyses. CONCLUSIONS In this IgG4-ROD cohort, most patients had bilateral enlarged lacrimal glands, and the lateral rectus is the most frequently involved EOM. For the first time, unique radiological patterns associated with the development of IgG4-RON and IgG4-ROL are found.
Collapse
Affiliation(s)
- Kenneth K H Lai
- Department of Ophthalmology, Tung Wah Eastern Hospital, Hong Kong SAR, China
| | - Winnie C W Chu
- Department of Imaging and Interventional Radiology, Prince of Wales Hospital, Hong Kong SAR, China
| | - Emmy Y M Li
- Hong Kong Eye Hospital, Hong Kong SAR, China
| | - Regine Y C Chan
- Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital, Hong Kong SAR, China
| | - Yingying Wei
- Department of Statistics, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Ruofan Jia
- Department of Statistics, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Andy C O Cheng
- Department of Ophthalmology, Hong Kong Sanatorium & Hospital, Hong Kong SAR, China
| | - Karen K W Chan
- Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital, Hong Kong SAR, China
| | - Joyce K Y Chin
- Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital, Hong Kong SAR, China
| | - Jeremy S W Kwok
- Department of Ophthalmology, Grantham Hospital, Hong Kong SAR, China
- Department of Ophthalmology, The University of Hong Kong, Hong Kong SAR, China
| | - Ida Y F Io
- Department of Ophthalmology, Caritas Medical Center, Hong Kong SAR, China
| | - Nelson K F Yip
- Department of Ophthalmology, United Christian Hospital, Hong Kong SAR, China
| | - Kenneth K W Li
- Department of Ophthalmology, United Christian Hospital, Hong Kong SAR, China
| | - Wai Ho Chan
- Department of Ophthalmology, Tuen Mun Hospital, Hong Kong SAR, China
| | - Nai Man Lam
- Hong Kong Eye Hospital, Hong Kong SAR, China
| | - Wilson W K Yip
- Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital, Hong Kong SAR, China
| | - Alvin L Young
- Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital, Hong Kong SAR, China
| | - Edwin Chan
- Department of Ophthalmology, Tung Wah Eastern Hospital, Hong Kong SAR, China
| | - Callie K L Ko
- Department of Ophthalmology, Tung Wah Eastern Hospital, Hong Kong SAR, China
| | - Simon T C Ko
- Department of Ophthalmology, Tung Wah Eastern Hospital, Hong Kong SAR, China
| | - Hunter K L Yuen
- Hong Kong Eye Hospital, Hong Kong SAR, China
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Clement C Y Tham
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Chi Pui Pang
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Kelvin K L Chong
- Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital, Hong Kong SAR, China
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China
| |
Collapse
|
34
|
Ran AR, Wang X, Chan PP, Chan NC, Yip W, Young AL, Wong MOM, Yung HW, Chang RT, Mannil SS, Tham YC, Cheng CY, Chen H, Li F, Zhang X, Heng PA, Tham CC, Cheung CY. Three-Dimensional Multi-Task Deep Learning Model to Detect Glaucomatous Optic Neuropathy and Myopic Features From Optical Coherence Tomography Scans: A Retrospective Multi-Centre Study. Front Med (Lausanne) 2022; 9:860574. [PMID: 35783623 PMCID: PMC9240220 DOI: 10.3389/fmed.2022.860574] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2022] [Accepted: 04/25/2022] [Indexed: 11/13/2022] Open
Abstract
PurposeWe aim to develop a multi-task three-dimensional (3D) deep learning (DL) model to detect glaucomatous optic neuropathy (GON) and myopic features (MF) simultaneously from spectral-domain optical coherence tomography (SDOCT) volumetric scans.MethodsEach volumetric scan was labelled as GON according to the criteria of retinal nerve fibre layer (RNFL) thinning, with a structural defect that correlated in position with the visual field defect (i.e., reference standard). MF were graded by the SDOCT en face images, defined as presence of peripapillary atrophy (PPA), optic disc tilting, or fundus tessellation. The multi-task DL model was developed by ResNet with output of Yes/No GON and Yes/No MF. SDOCT scans were collected in a tertiary eye hospital (Hong Kong SAR, China) for training (80%), tuning (10%), and internal validation (10%). External testing was performed on five independent datasets from eye centres in Hong Kong, the United States, and Singapore, respectively. For GON detection, we compared the model to the average RNFL thickness measurement generated from the SDOCT device. To investigate whether MF can affect the model’s performance on GON detection, we conducted subgroup analyses in groups stratified by Yes/No MF. The area under the receiver operating characteristic curve (AUROC), sensitivity, specificity, and accuracy were reported.ResultsA total of 8,151 SDOCT volumetric scans from 3,609 eyes were collected. For detecting GON, in the internal validation, the proposed 3D model had significantly higher AUROC (0.949 vs. 0.913, p < 0.001) than average RNFL thickness in discriminating GON from normal. In the external testing, the two approaches had comparable performance. In the subgroup analysis, the multi-task DL model performed significantly better in the group of “no MF” (0.883 vs. 0.965, p-value < 0.001) in one external testing dataset, but no significant difference in internal validation and other external testing datasets. The multi-task DL model’s performance to detect MF was also generalizable in all datasets, with the AUROC values ranging from 0.855 to 0.896.ConclusionThe proposed multi-task 3D DL model demonstrated high generalizability in all the datasets and the presence of MF did not affect the accuracy of GON detection generally.
Collapse
Affiliation(s)
- An Ran Ran
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong, Hong Kong SAR, China
- Lam Kin Chung. Jet King-Shing Ho Glaucoma Treatment and Research Centre, The Chinese University of Hong Kong, Hong Kong, Hong Kong SAR, China
| | - Xi Wang
- Department of Computer Science and Engineering, The Chinese University of Hong Kong, Hong Kong, Hong Kong SAR, China
- Department of Radiation Oncology, Stanford University School of Medicine, Stanford, Palo Alto, CA, United States
| | - Poemen P. Chan
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong, Hong Kong SAR, China
- Lam Kin Chung. Jet King-Shing Ho Glaucoma Treatment and Research Centre, The Chinese University of Hong Kong, Hong Kong, Hong Kong SAR, China
- Hong Kong Eye Hospital, Hong Kong, Hong Kong SAR, China
| | - Noel C. Chan
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong, Hong Kong SAR, China
- Department of Ophthalmology, Prince of Wales Hospital, Hong Kong, Hong Kong SAR, China
- Department of Ophthalmology, Alice Ho Miu Ling Nethersole Hospital, Hong Kong, Hong Kong SAR, China
| | - Wilson Yip
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong, Hong Kong SAR, China
- Department of Ophthalmology, Prince of Wales Hospital, Hong Kong, Hong Kong SAR, China
- Department of Ophthalmology, Alice Ho Miu Ling Nethersole Hospital, Hong Kong, Hong Kong SAR, China
| | - Alvin L. Young
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong, Hong Kong SAR, China
- Department of Ophthalmology, Prince of Wales Hospital, Hong Kong, Hong Kong SAR, China
| | - Mandy O. M. Wong
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong, Hong Kong SAR, China
- Hong Kong Eye Hospital, Hong Kong, Hong Kong SAR, China
| | - Hon-Wah Yung
- Tuen Mun Eye Centre, Hong Kong, Hong Kong SAR, China
| | - Robert T. Chang
- Department of Ophthalmology, Byers Eye Institute, Stanford University, Palo Alto, CA, United States
| | - Suria S. Mannil
- Department of Ophthalmology, Byers Eye Institute, Stanford University, Palo Alto, CA, United States
| | - Yih Chung Tham
- Singapore Eye Research Institute, Singapore National Eye Centre, Singapore, Singapore
- Duke-National University of Singapore Medical School, Singapore, Singapore
- Department of Ophthalmology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Ching-Yu Cheng
- Singapore Eye Research Institute, Singapore National Eye Centre, Singapore, Singapore
- Duke-National University of Singapore Medical School, Singapore, Singapore
- Department of Ophthalmology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Hao Chen
- Department of Computer Science and Engineering, The Hong Kong University of Science and Technology, Hong Kong, Hong Kong SAR, China
| | - Fei Li
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Centre, Sun Yat-sen University, Guangzhou, China
| | - Xiulan Zhang
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Centre, Sun Yat-sen University, Guangzhou, China
| | - Pheng-Ann Heng
- Department of Computer Science and Engineering, The Chinese University of Hong Kong, Hong Kong, Hong Kong SAR, China
| | - Clement C. Tham
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong, Hong Kong SAR, China
- Lam Kin Chung. Jet King-Shing Ho Glaucoma Treatment and Research Centre, The Chinese University of Hong Kong, Hong Kong, Hong Kong SAR, China
- Hong Kong Eye Hospital, Hong Kong, Hong Kong SAR, China
| | - Carol Y. Cheung
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong, Hong Kong SAR, China
- Lam Kin Chung. Jet King-Shing Ho Glaucoma Treatment and Research Centre, The Chinese University of Hong Kong, Hong Kong, Hong Kong SAR, China
- *Correspondence: Carol Y. Cheung,
| |
Collapse
|
35
|
Abstract
An increasing prevalence of dry eye disease in the past decade has resulted in a greater focus on diagnostic methods for this condition. There has been a proliferation of technologies that attempt to quantify various aspects of tear function and ocular surface health. However, a cost-effective, simple, and efficient method remains elusive. In the Indian context, the majority of these patients present to the general ophthalmologist, and a clinical approach that is quick and easy to perform would allow widespread usage for accurate diagnosis. This article reviews currently available methods and their relevance to the general ophthalmologist.
Collapse
Affiliation(s)
- Shizuka Koh
- Departments of Innovative Visual Science and Ophthalmology, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Srinivas K Rao
- Department of Ophthalmology, Darshan Eye Care and Surgical Centre, Chennai, India
| | - Sanjeev P Srinivas
- Department of Ophthalmology, Darshan Eye Care and Surgical Centre, Chennai, India
| | - Louis Tong
- Department of Ophthalmology, Yong Loo Lin School of Medicine, NUS, Singapore
| | - Alvin L Young
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong, PRC
| |
Collapse
|
36
|
Tang SM, Kam KW, French AN, Yu M, Chen LJ, Young AL, Rose KA, Tham CC, Pang CP, Yam JC. Erratum to Independent Influence of Parental Myopia on Childhood Myopia in a Dose-Related Manner in 2,055 Trios: The Hong Kong Children Eye Study (Am J Ophthalmol 2020;218:199-207). Am J Ophthalmol 2022; 240:353. [PMID: 35659451 DOI: 10.1016/j.ajo.2022.03.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
|
37
|
Yam JC, Jiang Y, Lee J, Li S, Zhang Y, Sun W, Yuan N, Wang YM, Yip BHK, Kam KW, Chan HN, Zhang XJ, Young AL, Tham CC, Cheung CY, Chu WK, Pang CP, Chen LJ. The Association of Choroidal Thickening by Atropine With Treatment Effects for Myopia: Two-Year Clinical Trial of the Low-concentration Atropine for Myopia Progression (LAMP) Study. Am J Ophthalmol 2022; 237:130-138. [PMID: 34942105 DOI: 10.1016/j.ajo.2021.12.014] [Citation(s) in RCA: 25] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2021] [Revised: 11/30/2021] [Accepted: 12/03/2021] [Indexed: 11/17/2022]
Abstract
PURPOSE To evaluate longitudinal changes in subfoveal choroidal thickness (SFChT) among children receiving atropine 0.05%, 0.025%, or 0.01% over 2 years and their associations with treatment outcomes in myopia control. DESIGN Double-blinded randomized controlled trial. METHODS SFChT was measured at 4-month intervals using spectral domain optical coherence tomography. Cycloplegic spherical equivalent (SE), axial length (AL), best-corrected visual acuity, parental SE, outdoor time, near work diopter hours, and treatment compliance were also measured. RESULTS 314 children were included with qualified choroidal data. The 2-year changes in SFChT from baseline were 21.15 ± 32.99 µm, 3.34 ± 25.30 µm, and -0.30 ± 27.15 µm for the atropine 0.05%, 0.025%, and 0.01% groups, respectively (P < .001). A concentration-dependent response was observed, with thicker choroids at higher atropine concentrations (β = 0.89, P < .001). Mean SFChT thickness significantly increased at 4 months in the atropine 0.025% (P = .001) and 0.05% groups (P < .001) and then remained stable until the end of the second year (P > .05 for all groups). Over 2 years, an increase in SFChT was associated with slower SE progression (β = 0.074, P < .001) and reduced AL elongation (β = -0.045, P < .001). In the mediation analysis, 18.45% of the effect on SE progression from atropine 0.05% was mediated via its choroidal thickening. CONCLUSIONS Low concentration atropine induced a choroidal thickening effect along a concentration-dependent response throughout the treatment period. The choroidal thickening was associated with a slower SE progression and AL elongation among all the treatment groups. Choroidal response can be used for assessment of long-term treatment outcomes and as a guide for concentration titrations of atropine.
Collapse
Affiliation(s)
- Jason C Yam
- From the Department of Ophthalmology and Visual Sciences (J.C.Y., Y.J., J.L., S.L., Y.Z., N.Y., Y.M.W., K.W.K., H.-N.C., X.J.Z., A.L.Y., C.C.T., C.Y.C., W.K.C., C.P.P., L.J.C.), The Chinese University of Hong Kong, Hong Kong;; Hong Kong Eye Hospital, (J.C.Y., C.C.T.), Hong Kong; Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital, (J.C.Y., K.W.K., A.L.Y.,C.C.T., L.J.C.), Hong Kong; Hong Kong Hub of Paediatric Excellence (J.C.Y., C.C.T., W.K.C., C.P.P., L.J.C.), The Chinese University of Hong Kong; Department of Ophthalmology, Hong Kong Children's Hospital (J.C.Y.), Hong Kong.
| | - Yuning Jiang
- From the Department of Ophthalmology and Visual Sciences (J.C.Y., Y.J., J.L., S.L., Y.Z., N.Y., Y.M.W., K.W.K., H.-N.C., X.J.Z., A.L.Y., C.C.T., C.Y.C., W.K.C., C.P.P., L.J.C.), The Chinese University of Hong Kong, Hong Kong
| | - Jackie Lee
- From the Department of Ophthalmology and Visual Sciences (J.C.Y., Y.J., J.L., S.L., Y.Z., N.Y., Y.M.W., K.W.K., H.-N.C., X.J.Z., A.L.Y., C.C.T., C.Y.C., W.K.C., C.P.P., L.J.C.), The Chinese University of Hong Kong, Hong Kong
| | - Sherie Li
- From the Department of Ophthalmology and Visual Sciences (J.C.Y., Y.J., J.L., S.L., Y.Z., N.Y., Y.M.W., K.W.K., H.-N.C., X.J.Z., A.L.Y., C.C.T., C.Y.C., W.K.C., C.P.P., L.J.C.), The Chinese University of Hong Kong, Hong Kong
| | - Yuzhou Zhang
- From the Department of Ophthalmology and Visual Sciences (J.C.Y., Y.J., J.L., S.L., Y.Z., N.Y., Y.M.W., K.W.K., H.-N.C., X.J.Z., A.L.Y., C.C.T., C.Y.C., W.K.C., C.P.P., L.J.C.), The Chinese University of Hong Kong, Hong Kong
| | - Wen Sun
- Jockey Club School of Public Health and Primary Care (W.S., B.H.K.Y.), The Chinese University of Hong Kong, Hong Kong, China
| | - Nan Yuan
- From the Department of Ophthalmology and Visual Sciences (J.C.Y., Y.J., J.L., S.L., Y.Z., N.Y., Y.M.W., K.W.K., H.-N.C., X.J.Z., A.L.Y., C.C.T., C.Y.C., W.K.C., C.P.P., L.J.C.), The Chinese University of Hong Kong, Hong Kong
| | - Yu Meng Wang
- From the Department of Ophthalmology and Visual Sciences (J.C.Y., Y.J., J.L., S.L., Y.Z., N.Y., Y.M.W., K.W.K., H.-N.C., X.J.Z., A.L.Y., C.C.T., C.Y.C., W.K.C., C.P.P., L.J.C.), The Chinese University of Hong Kong, Hong Kong
| | - Benjamin Hon Kei Yip
- Jockey Club School of Public Health and Primary Care (W.S., B.H.K.Y.), The Chinese University of Hong Kong, Hong Kong, China
| | - Ka Wai Kam
- From the Department of Ophthalmology and Visual Sciences (J.C.Y., Y.J., J.L., S.L., Y.Z., N.Y., Y.M.W., K.W.K., H.-N.C., X.J.Z., A.L.Y., C.C.T., C.Y.C., W.K.C., C.P.P., L.J.C.), The Chinese University of Hong Kong, Hong Kong;; Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital, (J.C.Y., K.W.K., A.L.Y.,C.C.T., L.J.C.), Hong Kong
| | - Hei-Nga Chan
- From the Department of Ophthalmology and Visual Sciences (J.C.Y., Y.J., J.L., S.L., Y.Z., N.Y., Y.M.W., K.W.K., H.-N.C., X.J.Z., A.L.Y., C.C.T., C.Y.C., W.K.C., C.P.P., L.J.C.), The Chinese University of Hong Kong, Hong Kong
| | - Xiu Juan Zhang
- From the Department of Ophthalmology and Visual Sciences (J.C.Y., Y.J., J.L., S.L., Y.Z., N.Y., Y.M.W., K.W.K., H.-N.C., X.J.Z., A.L.Y., C.C.T., C.Y.C., W.K.C., C.P.P., L.J.C.), The Chinese University of Hong Kong, Hong Kong
| | - Alvin L Young
- From the Department of Ophthalmology and Visual Sciences (J.C.Y., Y.J., J.L., S.L., Y.Z., N.Y., Y.M.W., K.W.K., H.-N.C., X.J.Z., A.L.Y., C.C.T., C.Y.C., W.K.C., C.P.P., L.J.C.), The Chinese University of Hong Kong, Hong Kong;; Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital, (J.C.Y., K.W.K., A.L.Y.,C.C.T., L.J.C.), Hong Kong
| | - Clement C Tham
- From the Department of Ophthalmology and Visual Sciences (J.C.Y., Y.J., J.L., S.L., Y.Z., N.Y., Y.M.W., K.W.K., H.-N.C., X.J.Z., A.L.Y., C.C.T., C.Y.C., W.K.C., C.P.P., L.J.C.), The Chinese University of Hong Kong, Hong Kong;; Hong Kong Eye Hospital, (J.C.Y., C.C.T.), Hong Kong; Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital, (J.C.Y., K.W.K., A.L.Y.,C.C.T., L.J.C.), Hong Kong; Hong Kong Hub of Paediatric Excellence (J.C.Y., C.C.T., W.K.C., C.P.P., L.J.C.), The Chinese University of Hong Kong
| | - Carol Y Cheung
- From the Department of Ophthalmology and Visual Sciences (J.C.Y., Y.J., J.L., S.L., Y.Z., N.Y., Y.M.W., K.W.K., H.-N.C., X.J.Z., A.L.Y., C.C.T., C.Y.C., W.K.C., C.P.P., L.J.C.), The Chinese University of Hong Kong, Hong Kong
| | - Wai Kit Chu
- From the Department of Ophthalmology and Visual Sciences (J.C.Y., Y.J., J.L., S.L., Y.Z., N.Y., Y.M.W., K.W.K., H.-N.C., X.J.Z., A.L.Y., C.C.T., C.Y.C., W.K.C., C.P.P., L.J.C.), The Chinese University of Hong Kong, Hong Kong;; Hong Kong Hub of Paediatric Excellence (J.C.Y., C.C.T., W.K.C., C.P.P., L.J.C.), The Chinese University of Hong Kong
| | - Chi Pui Pang
- From the Department of Ophthalmology and Visual Sciences (J.C.Y., Y.J., J.L., S.L., Y.Z., N.Y., Y.M.W., K.W.K., H.-N.C., X.J.Z., A.L.Y., C.C.T., C.Y.C., W.K.C., C.P.P., L.J.C.), The Chinese University of Hong Kong, Hong Kong;; Hong Kong Hub of Paediatric Excellence (J.C.Y., C.C.T., W.K.C., C.P.P., L.J.C.), The Chinese University of Hong Kong
| | - Li Jia Chen
- From the Department of Ophthalmology and Visual Sciences (J.C.Y., Y.J., J.L., S.L., Y.Z., N.Y., Y.M.W., K.W.K., H.-N.C., X.J.Z., A.L.Y., C.C.T., C.Y.C., W.K.C., C.P.P., L.J.C.), The Chinese University of Hong Kong, Hong Kong;; Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital, (J.C.Y., K.W.K., A.L.Y.,C.C.T., L.J.C.), Hong Kong; Hong Kong Hub of Paediatric Excellence (J.C.Y., C.C.T., W.K.C., C.P.P., L.J.C.), The Chinese University of Hong Kong
| |
Collapse
|
38
|
Wan KH, Lui GCY, Poon KCF, Ng SSS, Young AL, Hui DSC, Tham CCY, Chan PKS, Pang CP, Chong KKL. Ocular surface disturbance in patients after acute COVID-19. Clin Exp Ophthalmol 2022; 50:398-406. [PMID: 35218134 PMCID: PMC9111848 DOI: 10.1111/ceo.14066] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2021] [Revised: 02/20/2022] [Accepted: 02/23/2022] [Indexed: 01/08/2023]
Abstract
Background We investigated the ocular surface disturbances in COVID‐19 patients discharged from the hospital. Methods One hundred and seventy‐nine eyes of 109 healthy participants and 456 eyes of 228 post‐COVID‐19 patients received comprehensive eye examinations; the latter were interviewed with questionnaires on ocular symptoms before and after COVID‐19 diagnosis. Associations of ocular surface manifestations with virological and ophthalmic parameters were evaluated by multivariable mixed linear or logistic regression models. Results Mean interval between COVID‐19 diagnosis and ophthalmic evaluation was 52.23 ± 16.12 days. The severity of meibomian gland dysfunction (MGD) based on clinical staging was higher in post‐COVID‐19 than healthy eyes (1.14 ± 0.67 vs. 0.92 ± 0.68, p = 0.002) and so was ocular surface staining score (0.60 ± 0.69 vs. 0.49 ± 0.68, p = 0.044). Patients requiring supplementary oxygen during hospitalisation had shorter tear break‐up time (β −1.63, 95% CI ‐2.61 to −0.65). Cycle threshold (Ct) value from upper respiratory samples (inversely correlated with viral load) at diagnosis had an OR = 0.91 (95% CI 0.84–0.98) with new ocular surface symptoms 4 weeks after diagnosis. The presence of ocular surface symptoms 1 week prior to COVID‐19 diagnosis showed an OR of 20.89 (95% CI 6.35–68.66) of persistent or new ocular symptoms 4 weeks afterward. Conclusions MGD and ocular surface staining are more common and severe in post‐COVID‐19 patients. Patients with higher viral loads have greater risks of ocular surface symptoms. Patients requiring supplementary oxygen are more likely to show tear film instability. Ocular surface evaluation should be considered 1–3 months following hospital discharge for any COVID‐19 patient.
Collapse
Affiliation(s)
- Kelvin H Wan
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, China
| | - Grace C Y Lui
- Department of Medicine and Therapeutics, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, China
| | - Ken C F Poon
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, China
| | - Susanna S S Ng
- Department of Medicine and Therapeutics, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, China
| | - Alvin L Young
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, China
| | - David S C Hui
- Department of Medicine and Therapeutics, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, China
| | - Clement C Y Tham
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, China
| | - Paul K S Chan
- Department of Microbiology, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, China
| | - Chi Pui Pang
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, China
| | - Kelvin K L Chong
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, China
| |
Collapse
|
39
|
Zhang XJ, Lau YH, Wang YM, Chan HN, Chan PP, Kam KW, Ip P, Zhang W, Young AL, Tham CC, Pang CP, Chen LJ, Yam JC. Thicker Retinal Nerve Fiber Layer with Age among Schoolchildren: The Hong Kong Children Eye Study. Diagnostics (Basel) 2022; 12:diagnostics12020500. [PMID: 35204590 PMCID: PMC8870939 DOI: 10.3390/diagnostics12020500] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2022] [Revised: 02/04/2022] [Accepted: 02/07/2022] [Indexed: 12/18/2022] Open
Abstract
This study aims to investigate the effect of age on the peripapillary retinal nerve fiber layer (p-RNFL) thickness among schoolchildren. A total of 4034 children aged 6–8 years old received comprehensive ophthalmological examinations. p-RNFL thickness was measured from a circular scan (⌀ = 3.4 mm) captured using spectral-domain optical coherence tomography (SD-OCT). Associations between p-RNFL thickness with ocular and systemic factors were determined by multivariate linear regression after adjusting potential confounders using generalized estimating equations (GEE). The mean global p-RNFL thickness was 106.60 ± 9.41 μm (range: 72 to 171 μm) in the right eyes, 105.99 ± 9.30 μm (range: 76 to 163 μm) in the left eyes, and 106.29 ± 9.36 μm (range: 72 to 171 μm) across both eyes. Age was positively correlated with p-RNFL after adjusting for axial length (AL) and confounding factors (β = 0.509; p = 0.001). Upon multivariable analysis, AL was positively associated with temporal p-RNFL thickness (β = 3.186, p < 0.001) but negatively with non-temporal p-RNFL thickness (β = (10.003, −2.294), p < 0.001). Sectoral p-RNFL was the thickest in the inferior temporal region (155.12 ± 19.42 μm, range 68 to 271 μm), followed by the superior temporal region (154.67 ± 19.99 μm, range 32 to 177 μm). To conclude, p-RNFL increased significantly with older age among children 6 to 8 years old in a converse trend compared to adults. Our results provide a reference for interpreting OCT information in children and suggest that stable p-RNFL thickness may not indicate a stable disease status in pediatric patients due to the age effects.
Collapse
Affiliation(s)
- Xiu-Juan Zhang
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China; (X.-J.Z.); (Y.-H.L.); (Y.-M.W.); (H.-N.C.); (P.P.C.); (K.-W.K.); (A.L.Y.); (C.C.T.); (C.-P.P.); (L.-J.C.)
- Division of Pediatric Ophthalmology and Strabismus, Tianjin Eye Hospital, Tianjin 300020, China;
| | - Yi-Han Lau
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China; (X.-J.Z.); (Y.-H.L.); (Y.-M.W.); (H.-N.C.); (P.P.C.); (K.-W.K.); (A.L.Y.); (C.C.T.); (C.-P.P.); (L.-J.C.)
| | - Yu-Meng Wang
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China; (X.-J.Z.); (Y.-H.L.); (Y.-M.W.); (H.-N.C.); (P.P.C.); (K.-W.K.); (A.L.Y.); (C.C.T.); (C.-P.P.); (L.-J.C.)
| | - Hei-Nga Chan
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China; (X.-J.Z.); (Y.-H.L.); (Y.-M.W.); (H.-N.C.); (P.P.C.); (K.-W.K.); (A.L.Y.); (C.C.T.); (C.-P.P.); (L.-J.C.)
| | - Poemen P. Chan
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China; (X.-J.Z.); (Y.-H.L.); (Y.-M.W.); (H.-N.C.); (P.P.C.); (K.-W.K.); (A.L.Y.); (C.C.T.); (C.-P.P.); (L.-J.C.)
- Hong Kong Eye Hospital, Kowloon, Hong Kong SAR, China
| | - Ka-Wai Kam
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China; (X.-J.Z.); (Y.-H.L.); (Y.-M.W.); (H.-N.C.); (P.P.C.); (K.-W.K.); (A.L.Y.); (C.C.T.); (C.-P.P.); (L.-J.C.)
- Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital, Hong Kong SAR, China
| | - Patrick Ip
- Department of Paediatrics and Adolescent Medicine, LKS Faculty of Medicine, The University of Hong Kong, Hong Kong SAR, China;
| | - Wei Zhang
- Division of Pediatric Ophthalmology and Strabismus, Tianjin Eye Hospital, Tianjin 300020, China;
| | - Alvin L. Young
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China; (X.-J.Z.); (Y.-H.L.); (Y.-M.W.); (H.-N.C.); (P.P.C.); (K.-W.K.); (A.L.Y.); (C.C.T.); (C.-P.P.); (L.-J.C.)
- Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital, Hong Kong SAR, China
| | - Clement C. Tham
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China; (X.-J.Z.); (Y.-H.L.); (Y.-M.W.); (H.-N.C.); (P.P.C.); (K.-W.K.); (A.L.Y.); (C.C.T.); (C.-P.P.); (L.-J.C.)
- Hong Kong Eye Hospital, Kowloon, Hong Kong SAR, China
- Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital, Hong Kong SAR, China
- Hong Kong Hub of Paediatric Excellence, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Chi-Pui Pang
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China; (X.-J.Z.); (Y.-H.L.); (Y.-M.W.); (H.-N.C.); (P.P.C.); (K.-W.K.); (A.L.Y.); (C.C.T.); (C.-P.P.); (L.-J.C.)
- Hong Kong Hub of Paediatric Excellence, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Li-Jia Chen
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China; (X.-J.Z.); (Y.-H.L.); (Y.-M.W.); (H.-N.C.); (P.P.C.); (K.-W.K.); (A.L.Y.); (C.C.T.); (C.-P.P.); (L.-J.C.)
- Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital, Hong Kong SAR, China
- Hong Kong Hub of Paediatric Excellence, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Jason C. Yam
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China; (X.-J.Z.); (Y.-H.L.); (Y.-M.W.); (H.-N.C.); (P.P.C.); (K.-W.K.); (A.L.Y.); (C.C.T.); (C.-P.P.); (L.-J.C.)
- Hong Kong Eye Hospital, Kowloon, Hong Kong SAR, China
- Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital, Hong Kong SAR, China
- Hong Kong Hub of Paediatric Excellence, The Chinese University of Hong Kong, Hong Kong SAR, China
- Department of Ophthalmology, Hong Kong Children’s Hospital, Hong Kong SAR, China
- Correspondence: ; Tel.: +852-3943-5892; Fax: +852-2715-9490
| |
Collapse
|
40
|
Lu SY, Zhang XJ, Wang YM, Yuan N, Kam KW, Chan PP, Tam PO, Yip WW, Young AL, Tham CC, Pang CP, Yam JC, Chen LJ. Association of SIX1-SIX6 polymorphisms with peripapillary retinal nerve fibre layer thickness in children. Br J Ophthalmol 2022:bjophthalmol-2021-319756. [PMID: 35017159 DOI: 10.1136/bjophthalmol-2021-319756] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2021] [Accepted: 12/10/2021] [Indexed: 11/04/2022]
Abstract
PURPOSE Association of SIX1-SIX6 variants with peripapillary retinal nerve fibre layer (p-RNFL) thickness had been reported in adults. This study aimed to investigate these associations in children, with further explorations by spatial, age and sex stratifications. METHODS 2878 school children aged between 6 and 9 years were enrolled from the Hong Kong Children Eye Study. Three single-nucleotide polymorphisms (SNPs) at the SIX1-SIX6 locus were genotyped. The association of each SNP with p-RNFL thickness (including global and sectoral thickness) were evaluated using multiple linear regression. RESULTS SNPs rs33912345 (p=7.7×10-4) and rs10483727 (p=0.0013) showed significant associations with temporal-inferior p-RNFL thickness. The C allele of rs33912345 was associated with a thinner temporal-inferior p-RNFL by an average of 2.44 µm, while rs10483727-T was associated with a thinner temporal-inferior p-RNFL by 2.32 µm. The association with temporal-inferior p-RNFL was the strongest in the 8-9 year-old group for rs33912345 (p=5.2×10-4) and rs10483727 (p=3.3×10-4). Both SNPs were significantly associated with temporal-inferior p-RNFL thickness in boys (p<0.0017), but not in girls (p>0.05). In contrast, rs12436579-C (β=1.66; p=0.0059), but not rs33912345-C (β=1.31; p=0.052) or rs10483727-T (β=1.19; p=0.078), was nominally associated with a thicker nasal-inferior p-RNFL. CONCLUSIONS Both rs33912345 and rs10483727 at SIX1-SIX6 were associated with p-RNFL thickness in children, especially at the temporal-inferior sector, with age-dependent and sex-specific effects. SNP rs12436579 was associated with nasal-inferior p-RNFL thickness. Our findings suggested a role of SIX1-SIX6 in RNFL variation during neural retina development in childhood.
Collapse
Affiliation(s)
- Shi Yao Lu
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong, China
| | - Xiu Juan Zhang
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong, China
| | - Yu Meng Wang
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong, China
| | - Nan Yuan
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong, China
| | - Ka Wai Kam
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong, China.,Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital, Hong Kong, China
| | - Poemen P Chan
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong, China.,Hong Kong Eye Hospital, Hong Kong, China
| | - Pancy Os Tam
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong, China
| | - Wilson Wk Yip
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong, China.,Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital, Hong Kong, China
| | - Alvin L Young
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong, China.,Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital, Hong Kong, China
| | - Clement C Tham
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong, China.,Hong Kong Eye Hospital, Hong Kong, China.,Hong Kong Hub of Paediatric Excellence, The Chinese University of Hong Kong, Hong Kong, China
| | - Chi Pui Pang
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong, China.,Hong Kong Hub of Paediatric Excellence, The Chinese University of Hong Kong, Hong Kong, China
| | - Jason C Yam
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong, China .,Hong Kong Eye Hospital, Hong Kong, China.,Hong Kong Hub of Paediatric Excellence, The Chinese University of Hong Kong, Hong Kong, China
| | - Li Jia Chen
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong, China .,Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital, Hong Kong, China.,Hong Kong Hub of Paediatric Excellence, The Chinese University of Hong Kong, Hong Kong, China
| |
Collapse
|
41
|
Kam KW, Wong VWY, Chow VWS, Yiu EPF, Young AL. Celebrating 60 years of corneal transplant in Hong Kong. Hong Kong Med J 2021; 27:458-460. [PMID: 34764229 DOI: 10.12809/hkmj219671] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Affiliation(s)
- K W Kam
- Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital, Hong Kong.,Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong
| | - V W Y Wong
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong.,HKU Health System, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong.,Department of Ophthalmology, Queen Mary Hospital and Grantham Hospital, Hong Kong
| | - V W S Chow
- Department of Ophthalmology and Visual Sciences, Hong Kong Eye Hospital, Hong Kong
| | | | - A L Young
- Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital, Hong Kong.,Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong
| |
Collapse
|
42
|
Zhang XJ, Wong PPY, Wong ES, Kam KW, Yip BHK, Zhang Y, Zhang W, Young AL, Chen LJ, Ip P, Tham CC, Pang CP, Yam JC. Delayed Diagnosis of Amblyopia in Children of Lower Socioeconomic Families: The Hong Kong Children Eye Study. Ophthalmic Epidemiol 2021; 29:621-628. [PMID: 34620042 DOI: 10.1080/09286586.2021.1986551] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
AIMS To determine the prevalence of amblyopia and the factors associated with delayed diagnosis among school-aged children in Hong Kong. METHODS Completed comprehensive ophthalmoscopic examinations were conducted among 4.273 children aged 6-8 years in the population-based Hong Kong Children Eye Study. New and previous diagnoses of amblyopia were identified. Socioeconomic status was surveyed through questionnaires. RESULTS According to criteria from the Multi-Ethnic Pediatric Eye Disease Study (MEPEDS), amblyopia was present in 43 out of 4,273 children (1.01%; 95% CI, 0.71-1.31). Among them, 33 (0.77%) were newly detected cases that were more likely from families living in Public Rental Housing or subdivided flats (OR, 4.22; P = .012), with lower paternal (OR 6.68, P = .008) and maternal education levels (OR, 4.38; P = .039). Multivariate analysis revealed associations of amblyopia with hyperopia (≥+2.00D; OR, 6.23; 95% CI, 2.86-13.56, P < .001), astigmatism (≥+2.00D; OR, 24.88; 95% CI, 10.69-57.91, P < .001) and anisometropia (≥2.00D; OR, 14.49; 95% CI, 5.93-37.63, P < .001). CONCLUSION These children with delayed diagnoses of amblyopia were more likely to come from lower socioeconomic backgrounds. Public education aimed at increasing awareness and utilization of child vision screening among such families is needed.
Collapse
Affiliation(s)
- Xiu Juan Zhang
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong, China.,Tianjin Eye Hospital, Tianjin, China
| | - Posey Po-Yin Wong
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong, China
| | - Emily S Wong
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong, China.,Hong Kong Eye Hospital, Kowloon, Hong Kong, China
| | - Ka Wai Kam
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong, China.,Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital, Hong Kong, China
| | - Benjamin Hon Kei Yip
- Jockey Club School of Public Health and Primary Care, The Chinese University of Hong Kong, Hong Kong, China
| | - Yuzhou Zhang
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong, China
| | - Wei Zhang
- Tianjin Eye Hospital, Tianjin, China
| | - Alvin L Young
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong, China.,Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital, Hong Kong, China
| | - Li Jia Chen
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong, China.,Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital, Hong Kong, China
| | - Patrick Ip
- Department of Paediatrics and Adolescent Medicine, Lks Faculty of Medicine, The University of Hong Kong, Hong Kong, China
| | - Clement C Tham
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong, China.,Tianjin Eye Hospital, Tianjin, China.,Hong Kong Eye Hospital, Kowloon, Hong Kong, China.,Hong Kong Hub of Paediatric Excellence, The Chinese University of Hong Kong, Hong Kong
| | - Chi Pui Pang
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong, China.,Hong Kong Hub of Paediatric Excellence, The Chinese University of Hong Kong, Hong Kong
| | - Jason C Yam
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong, China.,Hong Kong Eye Hospital, Kowloon, Hong Kong, China.,Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital, Hong Kong, China.,Hong Kong Hub of Paediatric Excellence, The Chinese University of Hong Kong, Hong Kong
| |
Collapse
|
43
|
Tang F, Wang X, Ran AR, Chan CKM, Ho M, Yip W, Young AL, Lok J, Szeto S, Chan J, Yip F, Wong R, Tang Z, Yang D, Ng DS, Chen LJ, Brelén M, Chu V, Li K, Lai THT, Tan GS, Ting DSW, Huang H, Chen H, Ma JH, Tang S, Leng T, Kakavand S, Mannil SS, Chang RT, Liew G, Gopinath B, Lai TYY, Pang CP, Scanlon PH, Wong TY, Tham CC, Chen H, Heng PA, Cheung CY. A Multitask Deep-Learning System to Classify Diabetic Macular Edema for Different Optical Coherence Tomography Devices: A Multicenter Analysis. Diabetes Care 2021; 44:2078-2088. [PMID: 34315698 PMCID: PMC8740924 DOI: 10.2337/dc20-3064] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/17/2020] [Accepted: 05/29/2021] [Indexed: 02/03/2023]
Abstract
OBJECTIVE Diabetic macular edema (DME) is the primary cause of vision loss among individuals with diabetes mellitus (DM). We developed, validated, and tested a deep learning (DL) system for classifying DME using images from three common commercially available optical coherence tomography (OCT) devices. RESEARCH DESIGN AND METHODS We trained and validated two versions of a multitask convolution neural network (CNN) to classify DME (center-involved DME [CI-DME], non-CI-DME, or absence of DME) using three-dimensional (3D) volume scans and 2D B-scans, respectively. For both 3D and 2D CNNs, we used the residual network (ResNet) as the backbone. For the 3D CNN, we used a 3D version of ResNet-34 with the last fully connected layer removed as the feature extraction module. A total of 73,746 OCT images were used for training and primary validation. External testing was performed using 26,981 images across seven independent data sets from Singapore, Hong Kong, the U.S., China, and Australia. RESULTS In classifying the presence or absence of DME, the DL system achieved area under the receiver operating characteristic curves (AUROCs) of 0.937 (95% CI 0.920-0.954), 0.958 (0.930-0.977), and 0.965 (0.948-0.977) for the primary data set obtained from CIRRUS, SPECTRALIS, and Triton OCTs, respectively, in addition to AUROCs >0.906 for the external data sets. For further classification of the CI-DME and non-CI-DME subgroups, the AUROCs were 0.968 (0.940-0.995), 0.951 (0.898-0.982), and 0.975 (0.947-0.991) for the primary data set and >0.894 for the external data sets. CONCLUSIONS We demonstrated excellent performance with a DL system for the automated classification of DME, highlighting its potential as a promising second-line screening tool for patients with DM, which may potentially create a more effective triaging mechanism to eye clinics.
Collapse
Affiliation(s)
- Fangyao Tang
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong SAR
| | - Xi Wang
- Department of Computer Science and Engineering, The Chinese University of Hong Kong, Hong Kong SAR
| | - An-Ran Ran
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong SAR
| | | | - Mary Ho
- Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital, Hong Kong SAR.,Alice Ho Miu Ling Nethersole Hospital, Hong Kong SAR
| | - Wilson Yip
- Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital, Hong Kong SAR.,Alice Ho Miu Ling Nethersole Hospital, Hong Kong SAR
| | - Alvin L Young
- Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital, Hong Kong SAR.,Alice Ho Miu Ling Nethersole Hospital, Hong Kong SAR
| | - Jerry Lok
- Hong Kong Eye Hospital, Hong Kong SAR
| | | | | | - Fanny Yip
- Hong Kong Eye Hospital, Hong Kong SAR
| | | | - Ziqi Tang
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong SAR
| | - Dawei Yang
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong SAR
| | - Danny S Ng
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong SAR.,Hong Kong Eye Hospital, Hong Kong SAR
| | - Li Jia Chen
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong SAR.,Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital, Hong Kong SAR
| | - Marten Brelén
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong SAR
| | - Victor Chu
- United Christian Hospital, Hong Kong SAR
| | - Kenneth Li
- United Christian Hospital, Hong Kong SAR
| | | | - Gavin S Tan
- Singapore Eye Research Institute, Singapore National Eye Centre, Singapore
| | - Daniel S W Ting
- Singapore Eye Research Institute, Singapore National Eye Centre, Singapore
| | - Haifan Huang
- Joint Shantou International Eye Center, Shantou University and The Chinese University of Hong Kong, Shantou, Guangdong, China
| | - Haoyu Chen
- Joint Shantou International Eye Center, Shantou University and The Chinese University of Hong Kong, Shantou, Guangdong, China
| | - Jacey Hongjie Ma
- Aier School of Ophthalmology, Central South University, Changsha, Hunan, China
| | - Shibo Tang
- Aier School of Ophthalmology, Central South University, Changsha, Hunan, China
| | - Theodore Leng
- Byers Eye Institute at Stanford, Stanford University School of Medicine, Palo Alto, CA
| | - Schahrouz Kakavand
- Byers Eye Institute at Stanford, Stanford University School of Medicine, Palo Alto, CA
| | - Suria S Mannil
- Byers Eye Institute at Stanford, Stanford University School of Medicine, Palo Alto, CA
| | - Robert T Chang
- Byers Eye Institute at Stanford, Stanford University School of Medicine, Palo Alto, CA
| | - Gerald Liew
- Department of Ophthalmology, Westmead Institute for Medical Research, University of Sydney, Sydney, NSW, Australia
| | - Bamini Gopinath
- Department of Ophthalmology, Westmead Institute for Medical Research, University of Sydney, Sydney, NSW, Australia.,Macquarie University Hearing, Department of Linguistics, Macquarie University, Sydney, New South Wales, Australia
| | - Timothy Y Y Lai
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong SAR
| | - Chi Pui Pang
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong SAR
| | - Peter H Scanlon
- Gloucestershire Retinal Research Group, Gloucestershire Hospitals NHS Foundation Trust, Gloucester, U.K
| | - Tien Yin Wong
- Singapore Eye Research Institute, Singapore National Eye Centre, Singapore
| | - Clement C Tham
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong SAR.,Hong Kong Eye Hospital, Hong Kong SAR.,Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital, Hong Kong SAR
| | - Hao Chen
- Department of Computer Science and Engineering, The Hong Kong University of Sciences and Technology, Hong Kong SAR
| | - Pheng-Ann Heng
- Department of Computer Science and Engineering, The Chinese University of Hong Kong, Hong Kong SAR
| | - Carol Y Cheung
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong SAR
| |
Collapse
|
44
|
Abstract
Abstract
Introduction
Despite the increase in female doctors graduating from medical schools internationally, gender disparity in surgery remains. This disparity is also evident in academic surgery. This study aims to quantify the extent of gender disparity in the authorship of articles in major surgical journals.
Method
The Top 10 Surgical Journals were identified using SCImago Journal Rank indicator. Authorship details for papers published in 2019 were collected. Authors were assigned as female, male or unknown using Gender API software (Gender API, Germany). For each journal, the percentage of first author, last author, corresponding author and all authors split by gender was interrogated. Gender differences by publication type were also identified.
Result
9 of the 10 journals had full names publicly available. Overall, 2414 manuscripts were interrogated which included 16,277 number of authors. Respectively, females and males accounted for 29.8% [22.9–34.9%] (N = 655) and 62.4% [56.3–70.2%] (N = 1419) of first authors, 20.6% [11.8–27.1%] (N = 453) and 74.2% [65.6–84.1%] (N = 1706) of last authors, 23.9% [14.9–29.6%] (N = 510) and 69.9% [60.5–79.3%] (N = 2341) of corresponding authors and in total 27% [19.4–31.6%] (N = 4298) and 65.5% [58.6–73.4%] (N = 9982) of all authors. The wide range in these results could be a result of various factors.
Conclusion
This study has identified a gender imbalance in authorship positions, with the greatest difference observed in the most senior author position. Whether this is reflective of the current disparity observed in senior academic surgery positions or due to gender discrimination is unclear.
Take-home Message
This study identified a gender imbalance in authorship positions of major surgical journals, which has implications for women who choose to pursue a career in academic surgery.
Collapse
Affiliation(s)
| | | | | | | | - A L Young
- Department of Pancreatic Surgery, St James University Hospital
| |
Collapse
|
45
|
Mak CY, Ho M, Chan AZ, Iu LPL, Cheung CMT, Brelen ME, Choi PCL, Young AL. Tattoo-associated uveitis. Hong Kong Med J 2021; 27:222.e1-222.e2. [PMID: 34168090 DOI: 10.12809/hkmj208638] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Affiliation(s)
- C Y Mak
- Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital, Hong Kong
| | - M Ho
- Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital, Hong Kong
| | - A Z Chan
- Department of Anatomical and Cellular Pathology, Prince of Wales Hospital, Hong Kong
| | - L P L Iu
- Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital, Hong Kong
| | - C M T Cheung
- Division of Dermatology, Department of Medicine and Therapeutics, Prince of Wales Hospital, Hong Kong
| | - M E Brelen
- Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital, Hong Kong
| | - P C L Choi
- Department of Anatomical and Cellular Pathology, Prince of Wales Hospital, Hong Kong
| | - A L Young
- Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital, Hong Kong
| |
Collapse
|
46
|
Abstract
A 65-year-old man presented with bilateral, painless, progressive blurring of vision over 9 years. Slit-lamp examination revealed bilateral subepithelial corneal opacities in clusters located at the mid-periphery. Anterior segment optical coherence tomography, in vivo confocal microscopy (IVCM), serum protein electrophoresis, and molecular genetic testing were performed to evaluate the cause of corneal opacities. Anterior segment optical coherence tomography revealed a band-like, hyperreflective lesion in the Bowman layer and anterior stroma of both corneas. IVCM revealed hyperreflective deposits in the epithelium, anterior stroma, and endothelium. Serum protein electrophoresis identified the presence of paraproteins (immunoglobulin kappa), and molecular genetic testing revealed absence of mutations in the transforming growth factor beta-induced gene (TGFBI) and collagen type XVII alpha 1 gene (COL17A1). The ocular diagnosis of paraproteinemic keratopathy eventually led to a systemic diagnosis of monoclonal gammopathy of undetermined significance by our hematologist/oncologist. Paraproteinemic keratopathy is a rare differential diagnosis in patients with bilateral corneal opacities and therefore may be misdiagnosed as corneal dystrophy or neglected as scars. In patients with bilateral corneal opacities of unknown cause, serological examination, adjunct anterior segment imaging, and molecular genetic testing play a role in establishing the diagnosis.
Collapse
Affiliation(s)
- Eugenie Mok
- Department of Ophthalmology & Visual Sciences, The Chinese University of Hong Kong, New Territories, Hong Kong, Hong Kong, China.,Department of Ophthalmology & Visual Sciences, Prince of Wales Hospital, Hong Kong, Hong Kong, China
| | - Ka Wai Kam
- Department of Ophthalmology & Visual Sciences, The Chinese University of Hong Kong, New Territories, Hong Kong, Hong Kong, China.,Department of Ophthalmology & Visual Sciences, Prince of Wales Hospital, Hong Kong, Hong Kong, China
| | - Anthony J Aldave
- Stein Eye Institute, The University of California, Los Angeles, California, USA
| | - Alvin L Young
- Department of Ophthalmology & Visual Sciences, The Chinese University of Hong Kong, New Territories, Hong Kong, Hong Kong, China.,Department of Ophthalmology & Visual Sciences, Prince of Wales Hospital, Hong Kong, Hong Kong, China
| |
Collapse
|
47
|
Tsui J, Ho M, Lui G, Li T, Chen L, Iu L, Brelen M, Young AL. The clinical presentation and treatment outcomes of ocular tuberculosis: a 5-year experience in an endemic area. Int Ophthalmol 2021; 41:3199-3209. [PMID: 34037904 DOI: 10.1007/s10792-021-01886-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2020] [Accepted: 05/12/2021] [Indexed: 11/30/2022]
Abstract
PURPOSE To report the clinical presentations of ocular tuberculosis infection (OTB) and the treatment regimen and outcome in an endemic area. METHODS This is a retrospective case series of patients with presumed OTB treated in a tertiary teaching hospital in Hong Kong in 2014-2019. RESULTS Among the nineteen patients recruited, the most common clinical presentation of OTB was retinal vasculitis (42.1%), followed by scleritis, intermediate uveitis, and choroidal tuberculoma (15.8% respectively). 94.7% and 94.4% of the subjects were treated with ATT and steroid, respectively, and 31.6% were put on systemic immunosuppressant prior to the initiation of ATT. Apart from those suffering from intermediate uveitis, most demonstrated good clinical response within 8 weeks of ATT initiation. CONCLUSION Ocular involvement of TB has been increasingly recognized, especially in endemic regions like Hong Kong. High index of suspicion is recommended for OTB in typical clinical phenotypes or recurrent/resistant ocular inflammation unresponsive to conventional therapy. TB retinal vasculitis was the most common presentation of OTB in this study and OTB generally requires treatment with either regional or systemic steroid together with ATT.
Collapse
Affiliation(s)
- Jolly Tsui
- Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital and Alice Ho Miu Ling Nethersole, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Mary Ho
- Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital and Alice Ho Miu Ling Nethersole, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Grace Lui
- Department of Medicine and Therapeutics, Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Timothy Li
- Department of Medicine and Therapeutics, Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Lijia Chen
- Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital and Alice Ho Miu Ling Nethersole, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Lawrence Iu
- Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital and Alice Ho Miu Ling Nethersole, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Marten Brelen
- Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital and Alice Ho Miu Ling Nethersole, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Alvin L Young
- Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital and Alice Ho Miu Ling Nethersole, The Chinese University of Hong Kong, Hong Kong SAR, China.
| |
Collapse
|
48
|
Chen ZJ, Lu SY, Rong SS, Ho M, Ng DSC, Chen H, Gong B, Yam JC, Young AL, Brelen M, Tham CC, Pang CP, Chen LJ. Genetic associations of central serous chorioretinopathy: a systematic review and meta-analysis. Br J Ophthalmol 2021; 106:1542-1548. [PMID: 34039561 DOI: 10.1136/bjophthalmol-2021-318953] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2021] [Accepted: 05/08/2021] [Indexed: 11/04/2022]
Abstract
AIMS To identify single-nucleotide polymorphisms (SNPs) associated with central serous chorioretinopathy (CSCR) by a systematic review and meta-analysis, and to compare the association profiles between CSCR, neovascular age-related macular degeneration (nAMD) and polypoidal choroidal vasculopathy (PCV). METHODS We searched the EMBASE, PubMed and Web of Science for genetic studies of CSCR from the starting dates of the databases to 12 September 2020. We then performed meta-analyses on all SNPs reported by more than two studies and calculated the pooled OR and 95% CIs. We also conducted sensitivity analysis and adopted the funnel plot to assess potential publication bias. RESULTS Totally 415 publications were reviewed, among them 10 were eligible for meta-analysis. We found 10 SNPs that have been reported at least twice. Meta-analysis and sensitivity analysis confirmed significant associations between CSCR and six SNPs in three genes, namely age-related maculopathy susceptibility 2 (ARMS2) (rs10490924, OR=1.37; p=0.00064), complement factor H (CFH) (rs800292, OR=1.44; p=7.80×10-5; rs1061170, OR=1.34; p=0.0028; rs1329428, OR=1.40; p=0.012; and rs2284664, OR=1.36; p=0.0089) and tumour necrosis factor receptor superfamily, member 10a (TNFRSF10A) (rs13278062, OR=1.34; p=1.44×10-15). Among them, only TNFRSF10A rs13278062 showed the same trend of effect on CSCR, nAMD and PCV, while the SNPs in ARMS2 and CFH showed opposite trends in the SNP associations. CONCLUSIONS This study confirmed the associations of ARMS2, CFH and TNFRSF10A with CSCR, and revealed that ARMS2, CFH and TNFRSF10A may affect different phenotypic expressions of CSCR, nAMD and PCV.
Collapse
Affiliation(s)
- Zhen Ji Chen
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong, China
| | - Shi Yao Lu
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong, China
| | - Shi Song Rong
- Department of Ophthalmology, Harvard Medical School, Boston, Massachusetts, USA
| | - Mary Ho
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong, China.,Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital, Hong Kong, China
| | - Danny Siu-Chun Ng
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong, China
| | - Haoyu Chen
- Joint Shantou International Eye Center, Shantou University, Shantou, China
| | - Bo Gong
- Sichuan Key Laboratory for Disease Gene Study, Sichuan Academy of Medical Sciences & Sichuan Provincial People's Hospital, Chengdu, China
| | - Jason C Yam
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong, China
| | - Alvin L Young
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong, China.,Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital, Hong Kong, China
| | - Marten Brelen
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong, China.,Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital, Hong Kong, China
| | - Clement C Tham
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong, China
| | - Chi Pui Pang
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong, China.,Joint Shantou International Eye Center, Shantou University, Shantou, China
| | - Li Jia Chen
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong, China .,Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital, Hong Kong, China
| |
Collapse
|
49
|
Li SL, Kam KW, Chee ASH, Zhang XJ, Chen LJ, Yip WWK, Tham CC, Young AL, Wong ICK, Ip P, Yam JC. The association between attention-deficit/hyperactivity disorder and retinal nerve fiber/ganglion cell layer thickness measured by optical coherence tomography: a systematic review and meta-analysis. Int Ophthalmol 2021; 41:3211-3221. [PMID: 34014463 DOI: 10.1007/s10792-021-01852-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2020] [Accepted: 04/08/2021] [Indexed: 01/11/2023]
Abstract
PURPOSE Retinal nerve fiber/ganglion cell layer (RNFL/GCL) thickness measured using optical coherence tomography has been proposed as an ocular biomarker for children with attention-deficit/hyperactivity disorder (ADHD), but findings varied in different studies. This study aims to determine the association between RNFL/GCL thickness and ADHD in children by systematic review and meta-analysis. METHODS We performed a literature search in Embase, PubMed, Medline, Web of Science, and PsycINFO for relevant articles published up to February 29, 2020. All studies with original data comparing RNFL/GCL thickness in ADHD and healthy children were included. The Newcastle Ottawa Scale was used to assess bias risk and quality of evidence. Pooled estimates of the differences in thickness of RNFL or GCL between ADHD and healthy subjects were generated using meta-analysis with a random-effect model due to significant inter-study heterogeneity. Sensitivity analysis was also performed. RESULTS We identified four eligible studies involving a total of 164 ADHD and 150 control subjects. Meta-analysis revealed that ADHD in children was associated with a reduction in global RNFL thickness (SMD, - 0.23; 95% CI - 0.46, - 0.01; p = 0.04). The global GCL thickness was examined in two studies with 89 ADHD and 75 control subjects, but the pooled difference in global GCL thickness between ADHD children and controls was not statistically significant (SMD, - 0.34; 95% CI - 1.25, 0.58; p = 0.47). CONCLUSION Existing evidence suggests a possible association between ADHD and RNFL thinning in children. In view of the limited number of reports, further studies in large cohorts should be warranted.
Collapse
Affiliation(s)
- Sophia Ling Li
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Sha Tin, Hong Kong.,Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital, Sha Tin, Hong Kong
| | - Ka Wai Kam
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Sha Tin, Hong Kong.,Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital, Sha Tin, Hong Kong
| | - Arnold Shau Hei Chee
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Sha Tin, Hong Kong.,Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital, Sha Tin, Hong Kong
| | - Xiu Juan Zhang
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Sha Tin, Hong Kong
| | - Li Jia Chen
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Sha Tin, Hong Kong.,Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital, Sha Tin, Hong Kong
| | - Wilson W K Yip
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Sha Tin, Hong Kong.,Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital, Sha Tin, Hong Kong
| | - Clement C Tham
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Sha Tin, Hong Kong.,Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital, Sha Tin, Hong Kong.,Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong Eye Hospital, 147K Argyle Street, Kowloon, Hong Kong
| | - Alvin L Young
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Sha Tin, Hong Kong.,Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital, Sha Tin, Hong Kong
| | - Ian C K Wong
- Department of Pharmacology and Pharmacy, Li Ka Shing Faculty of Medicine, Centre for Safe Medication Practice and Research, The University of Hong Kong, Pok Fu Lam, Hong Kong
| | - Patrick Ip
- Department of Paediatrics and Adolescent Medicine, LKS Faculty of Medicine, The University of Hong Kong, Pok Fu Lam, Hong Kong.
| | - Jason C Yam
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Sha Tin, Hong Kong. .,Department of Ophthalmology and Visual Sciences, Prince of Wales Hospital, Sha Tin, Hong Kong. .,Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong Eye Hospital, 147K Argyle Street, Kowloon, Hong Kong.
| |
Collapse
|
50
|
To N, Bekker HL, Henry K, Melling P, Turley J, Lodge JPA, Young AL. COVID-19 restrictions on multidisciplinary team meeting decision-making: service evaluation in a major UK cancer centre. Br J Surg 2021; 108:e162-e163. [PMID: 33778851 PMCID: PMC8083657 DOI: 10.1093/bjs/znab009] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2020] [Revised: 12/03/2020] [Accepted: 12/27/2020] [Indexed: 11/12/2022]
Affiliation(s)
- N To
- Department of Pancreatic Surgery, St James's University Hospital, Leeds, UK
| | - H L Bekker
- Department of Medical Decision-making, University of Leeds, UK
| | - K Henry
- Cancer Team, St James's University Hospital, Leeds, UK
| | - P Melling
- Cancer Team, St James's University Hospital, Leeds, UK
| | - J Turley
- Cancer Team, St James's University Hospital, Leeds, UK
| | - J P A Lodge
- Cancer Team, St James's University Hospital, Leeds, UK.,Department of Hepatobiliary Surgery, St James's University Hospital, Leeds, UK
| | - A L Young
- Department of Pancreatic Surgery, St James's University Hospital, Leeds, UK
| |
Collapse
|