1
|
Bajraktari G, Jukić T, Kalauz M, Oroz M, Radolović Bertetić A, Vukojević N. Early and Late Complications after Cataract Surgery in Patients with Uveitis. MEDICINA (KAUNAS, LITHUANIA) 2023; 59:1877. [PMID: 37893595 PMCID: PMC10608233 DOI: 10.3390/medicina59101877] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/08/2023] [Revised: 10/07/2023] [Accepted: 10/16/2023] [Indexed: 10/29/2023]
Abstract
Background and Objectives: Uveitis, a prevalent eye disorder characterized by inflammatory processes, often leads to cataract formation and significant visual impairment. This study aimed to evaluate preoperative conditions and postoperative outcomes following cataract surgery in uveitis patients. Materials and Methods: A retrospective study was conducted at the University Hospital Center Rebro Zagreb, Croatia, involving uveitis patients who underwent cataract surgery between 2013 and 2022. Eligible patients had uveitic cataracts affecting visual acuity or posterior segment visualization in a "quiet eye" and were disease-inactive for at least three months. Patients with certain pre-existing ocular conditions were excluded. The data collected included patient demographics, uveitis type, preoperative therapy, preexisting lesions, and postoperative outcomes such as visual acuity, intraocular pressure, central macular thickness, and complications. Statistical analysis was performed to identify risk factors associated with complications. Results: This study included 105 patients. The most common uveitis types were idiopathic uveitis, HLA-B27-associated uveitis, and JIA uveitis. After cataract surgery, there was a significant improvement in visual acuity at various time points, with 90% of eyes showing improvement. Intraocular pressure decreased over time. Central macular thickness increased at three months post-surgery but remained stable thereafter. Early and late complications were observed in 52.4% and 63.8% of eyes, respectively. The most common complications were posterior capsular opacification (53.3%), macular edema (26.6%), and epiretinal membrane formation (9.52%). The factors associated with complications varied between early and late stages but included age, age at the onset of uveitis, and the uveitis type. Conclusions: In patients with quiescent uveitis undergoing cataract surgery, significant visual improvement was achieved. This study highlights the importance of careful patient selection, preoperative and postoperative inflammation management, and precise surgical techniques. Although complications were common, the risk of capsular opacification, macular edema, and epiretinal membrane formation after surgery increased. However, future investigations should address this study's limitations and further refine perioperative strategies.
Collapse
Affiliation(s)
- Gentian Bajraktari
- Department of Ophthalmology, School of Medicine, University of Zagreb, 10000 Zagreb, Croatia
- Clinic of Ophthalmology, University Clinical Center of Kosovo, 10000 Prishtina, Kosovo
| | - Tomislav Jukić
- Department of Ophthalmology, School of Medicine, University of Zagreb, 10000 Zagreb, Croatia
- Department of Ophthalmology, University Hospital Center Zagreb, 10000 Zagreb, Croatia
| | - Miro Kalauz
- Department of Ophthalmology, School of Medicine, University of Zagreb, 10000 Zagreb, Croatia
- Department of Ophthalmology, University Hospital Center Zagreb, 10000 Zagreb, Croatia
| | - Martin Oroz
- Department of Ophthalmology, University Hospital Center Zagreb, 10000 Zagreb, Croatia
| | | | - Nenad Vukojević
- Department of Ophthalmology, School of Medicine, University of Zagreb, 10000 Zagreb, Croatia
- Department of Ophthalmology, University Hospital Center Zagreb, 10000 Zagreb, Croatia
| |
Collapse
|
2
|
Cataract Surgery in Uveitis: Risk Factors, Outcomes, and Complications. Am J Ophthalmol 2022; 244:117-124. [PMID: 36002071 DOI: 10.1016/j.ajo.2022.08.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2022] [Revised: 08/11/2022] [Accepted: 08/12/2022] [Indexed: 01/30/2023]
Abstract
PURPOSE To determine the outcomes of cataract surgery in eyes with uveitis, including the rates of intraoperative and postoperative complications, as well as predictors of visual outcomes. DESIGN Retrospective observational cohort study. METHODS Setting: Tertiary public hospital setting in Auckland, New Zealand, between 2008 and 2020. STUDY POPULATION Patients who underwent cataract surgery following a diagnosis of uveitis.Main observation Procedures: Additional intraoperative procedures, intraoperative and postoperative complications, and postoperative visual outcomes and complications. RESULTS 471 eyes of 371 subjects were included. Median duration of uveitis prior to cataract surgery was 3.0 years (interquartile range [IQR] 5.2) and median period of quiescence prior to surgery was 1.0 years (IQR 1.5). Additional procedures (posterior synechiae peel [32.3%] and vision blue [18.1%]) were common. Intraoperative complications occurred in 32 eyes (6.8%). Consultants were the primary surgeons in the majority (82.5%) of operations. By 12 months, visual acuity was 20/50 or better in 248 eyes (79.7%). The most common postoperative complication was uveitis flare, occurring in 56.5%. On Cox proportional hazards analysis, time quiescent was associated with reduced risk of flare (HR 0.794, P = .003). Postoperative cystoid macular edema (CME) developed in 45 eyes (9.6%), with no significant predictors identified on multivariate analysis. CONCLUSIONS Cataract surgery in uveitis is complex. In the hands of the surgically experienced, rates of intraoperative complications are low. The primary challenge is managing postoperative care as we report a high rate of uveitis relapse and CME. Careful monitoring is important as complications can be unpredictable and occur later than expected.
Collapse
|
3
|
Shoughy SS, Jaroudi MO, Tabbara KF. Incidence of posterior capsule opacification following phacoemulsification in patients with uveitis. Saudi J Ophthalmol 2021; 34:182-185. [PMID: 34085010 PMCID: PMC8081085 DOI: 10.4103/1319-4534.310414] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2020] [Revised: 07/07/2020] [Accepted: 07/25/2020] [Indexed: 12/03/2022] Open
Abstract
PURPOSE: The purpose of this study was to evaluate the incidence of posterior capsule opacification (PCO) in patients with inactive uveitis who underwent phacoemulsification with acrylic hydrophobic intraocular lens. METHODS: Thus was a retrospective review of 25 consecutive patients (31 eyes) with uveitis who underwent phacoemulsification. A group of 100 patients (140 eyes) without uveitis served as historical controls. RESULTS: In patients with uveitis, PCO occurred in 11 eyes (35.5%), 6 (19%) of which were visually significant and required treatment with neodymium-doped yttrium aluminum garnet (Nd: YAG) laser. In the control group, PCO developed in 17 (12%) eyes which required treatment with Nd: YAG laser. The incidence of PCO was significantly higher in uveitis patients compared to the control group (P = 0.001), but the incidence of visually significant PCO requiring laser capsulotomy was not statistically significant (P = 0.3). CONCLUSION: The incidence of PCO in patients with uveitis was significantly higher than those without uveitis, but the need for Nd: YAG laser capsulotomy for visually significant PCO was not statistically significant.
Collapse
Affiliation(s)
- Samir S Shoughy
- The Eye Center and the Eye Foundation for Research in Ophthalmology, King Saud University, Riyadh, Saudi Arabia
| | - Mahmoud O Jaroudi
- The Eye Center and the Eye Foundation for Research in Ophthalmology, King Saud University, Riyadh, Saudi Arabia
| | - Khalid F Tabbara
- The Eye Center and the Eye Foundation for Research in Ophthalmology, King Saud University, Riyadh, Saudi Arabia.,Department of Ophthalmology, College of Medicine, King Saud University, Riyadh, Saudi Arabia
| |
Collapse
|
4
|
Arevalo JF, Lasave AF, Gupta V, Kozak I, Al Shamsi HN, Al Suliman SM, Al Rushood AA, Al-Zahrani YA, Al-Mahmood AM, Al Dhibi HA. Clinical Characteristics and Treatment of 308 Panuveitis Patients over 10 Years: Results from the KKESH Uveitis Survey Study Group. Ocul Immunol Inflamm 2018; 27:1296-1304. [DOI: 10.1080/09273948.2018.1523436] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- J. Fernando Arevalo
- Retina Division, Wilmer Eye Institute, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
- Vitreoretinal and Uveitis Division, King Khaled Eye Specialist Hospital, Riyadh, Kingdom of Saudi Arabia
| | - Andres F. Lasave
- Retina and Vitreous Department, Clinica Privada de Ojos, Buenos Aires, Mar del Plata, Argentina
| | - Vishali Gupta
- Vitreoretinal and Uveitis Division, King Khaled Eye Specialist Hospital, Riyadh, Kingdom of Saudi Arabia
| | - Igor Kozak
- Vitreoretinal and Uveitis Division, King Khaled Eye Specialist Hospital, Riyadh, Kingdom of Saudi Arabia
| | - Hanan Nasser Al Shamsi
- Vitreoretinal and Uveitis Division, King Khaled Eye Specialist Hospital, Riyadh, Kingdom of Saudi Arabia
| | | | - Abdulaziz Adel Al Rushood
- Vitreoretinal and Uveitis Division, King Khaled Eye Specialist Hospital, Riyadh, Kingdom of Saudi Arabia
| | - Yahya A. Al-Zahrani
- Vitreoretinal and Uveitis Division, King Khaled Eye Specialist Hospital, Riyadh, Kingdom of Saudi Arabia
| | - Ammar M. Al-Mahmood
- Anterior Segment and Uveitis Division, King Khaled Eye Specialist Hospital, Riyadh, Kingdom of Saudi Arabia
| | - Hassan A. Al Dhibi
- Vitreoretinal and Uveitis Division, King Khaled Eye Specialist Hospital, Riyadh, Kingdom of Saudi Arabia
| | | |
Collapse
|
5
|
Sharief L, Lightman S, Baltinas J, Tomkins-Netzer O. Long-term effect of cataract phacoemulsification on the inflammation control and clinical outcome in uveitis patients .. Clin Exp Ophthalmol 2018; 46:1048-1054. [PMID: 30073744 DOI: 10.1111/ceo.13369] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2018] [Revised: 05/31/2018] [Accepted: 06/13/2018] [Indexed: 12/17/2022]
Abstract
IMPORTANCE Cataract is one of the most common complications associated with uveitis, and is the leading cause of vision loss in these patients. BACKGROUND The study aimed to evaluate the effect of phacoemulsification on the long-term clinical outcome and inflammation control in uveitis patients. DESIGN Longitudinal study. PARTICIPANTS Of 1907 eyes with uveitis, 309 eyes underwent phacoemulsification were compared to a control group of 300 phakic eyes with uveitis. METHOD The risk of vision loss and macular oedema in pseudophakic eyes were compared to the phakic group. The rates of corticosteroids administration and uveitis relapse were also measured in pseudophakic eyes and compared to preoperative period. MAIN OUTCOME MEASURES Change in uveitis activity post phacoemulsification by measuring rate of uveitis relapse and use of topical and systemic steroids. Also, to measure the risk of vision loss and macular oedema post surgery. RESULTS Over a median follow-up time of 6.7 years or 2249 eye-years (EY), pseudophakic eyes had a greater risk of vision loss (hazard ratio [HR] 2.4, CI 1.4 to 4.0; P < 0.001) and macular oedema (HR 2.2, CI 1.4 to 3.4, P < 0.001) compared to the phakic uveitis group. Over 5 years post-surgery, the annual rate of uveitis relapses was less than the same period pre surgery (-1.2, 95% CI -2.0 to -0.2, P = 0.012) with no significant change in the annual rate of using topical and systemic prednisolone >7.5 mg/day. CONCLUSIONS AND RELEVANCE There was no significant increase in uveitis relapse rate post-phacoemulsification with the use of current prophylactic inflammation control measures.
Collapse
Affiliation(s)
- Lazha Sharief
- Moorfields Eye Hospital, London, UK.,UCL Institute of Ophthalmology, London, UK.,College of Medicine, Hawler Medical University, Erbil, Iraq
| | | | - Julijana Baltinas
- Moorfields Eye Hospital, London, UK.,UCL Institute of Ophthalmology, London, UK
| | - Oren Tomkins-Netzer
- Moorfields Eye Hospital, London, UK.,UCL Institute of Ophthalmology, London, UK.,Technion - Israel Institute of Technology, Haifa, Israel
| |
Collapse
|
6
|
Abstract
To evaluate the visual outcomes of cataract surgery in patients with uveitis, and to determine risk factors for the recurrence of uveitis and postoperative complications.Eighty patients with uveitis who underwent phacoemulsification with intraocular lens (IOL) implantation were included in this retrospective study. We analyzed the following data: patient characteristics, medications used, visual acuity, and complications of cataract surgery.The mean ± standard deviation time from cataract surgery to the last visit was 20.8 ± 10.4 months. Best-corrected visual acuity improved significantly after surgery (P < .001). The visual outcome was worse in patients with Behçet disease than in patients with other etiologies of uveitis. Gender (P = .018) and IOL type (P = .020) were significantly associated with recurrent uveitis after surgery. The incidence of recurrent inflammation was not significantly different between patients who did or did not receive systemic therapy (P = .43). Perioperative systemic therapies (P = .011) and recurrent uveitis within 3 months of surgery (P = .043) were associated with posterior capsular opacification. Perioperative systemic therapies (P = .026) and recurrent uveitis after surgery (P = .006) were also significantly associated with cystoid macular edema.Patients with uveitis could benefit from cataract surgery. Patients with Behçet disease had worse postoperative prognosis than patients with other etiologies of uveitis. A heparin-surface-modified IOL may reduce the incidence of recurrent inflammation.
Collapse
Affiliation(s)
- Yinglei Zhang
- Department of Ophthalmology, Eye, Ear, Nose, and Throat Hospital of Fudan University
- Key Laboratory of Myopia, Ministry of Health
- Shanghai Key Laboratory of Visual Impairment and Restoration of Shanghai, Fudan University, Shanghai, China
| | - Xiangjia Zhu
- Department of Ophthalmology, Eye, Ear, Nose, and Throat Hospital of Fudan University
- Key Laboratory of Myopia, Ministry of Health
- Shanghai Key Laboratory of Visual Impairment and Restoration of Shanghai, Fudan University, Shanghai, China
| | - Wenwen He
- Department of Ophthalmology, Eye, Ear, Nose, and Throat Hospital of Fudan University
- Key Laboratory of Myopia, Ministry of Health
- Shanghai Key Laboratory of Visual Impairment and Restoration of Shanghai, Fudan University, Shanghai, China
| | - Yongxiang Jiang
- Department of Ophthalmology, Eye, Ear, Nose, and Throat Hospital of Fudan University
- Key Laboratory of Myopia, Ministry of Health
- Shanghai Key Laboratory of Visual Impairment and Restoration of Shanghai, Fudan University, Shanghai, China
| | - Yi Lu
- Department of Ophthalmology, Eye, Ear, Nose, and Throat Hospital of Fudan University
- Key Laboratory of Myopia, Ministry of Health
- Shanghai Key Laboratory of Visual Impairment and Restoration of Shanghai, Fudan University, Shanghai, China
| |
Collapse
|
7
|
Balta O, Sungur G, Acar MA, Kosker M, Yakin M, Ornek F. Long-term results of cataract surgery in patients with anterior uveitis. Int Ophthalmol 2017; 38:1399-1407. [PMID: 28602016 DOI: 10.1007/s10792-017-0598-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2017] [Accepted: 06/05/2017] [Indexed: 12/17/2022]
Abstract
PURPOSE This study was aimed to assess the long-term results of phacoemulsification and posterior chamber intraocular lens implantation in patients with anterior uveitis. METHODS Patients with complicated cataract secondary to anterior uveitis who underwent phacoemulsification and posterior chamber intraocular lens implantation were included in this study. Long-term results and all complications were evaluated throughout the postoperative 4 years. RESULTS A total of 55 eyes of 48 patients were identified in this study. Cases with anterior uveitis were categorised into four aetiologic groups. Of the 55 eyes, 22 (19 patients) had idiopathic anterior uveitis, 10 (9 patients) had viral anterior uveitis, 10 (9 patients) had Fuchs' anterior uveitis and 13 (11 patients) had anterior uveitis associated with collagen vascular diseases. Preoperative macular oedema was more frequent (63.6%) in the idiopathic group than in the other groups (p < 0.001). The success rates of the best corrected visual acuity of 20/40 or better ranged from 80.0 to 100.0% in the groups. While postoperative increased intraocular pressure rate was statistically significantly higher in the Fuchs' group (p = 0.047), there was no statistically significant difference in other complication rates between the groups. CONCLUSIONS The long-term outcomes of phacoemulsification with intraocular lens implantation in patients with uveitic cataract were satisfactory with excellent visual acuity and relatively low complication rates.
Collapse
Affiliation(s)
- Ozgur Balta
- Department of Ophthalmology, Dr. Nafiz Korez Sincan State Hospital, Ankara, Turkey.
| | - Gulten Sungur
- Department of Ophthalmology, Ankara Training and Research Hospital, Ankara, Turkey
| | - Mehmet Akif Acar
- Department of Ophthalmology, Ankara Training and Research Hospital, Ankara, Turkey
| | - Mustafa Kosker
- Department of Ophthalmology, Ankara Diskapi Training and Research Hospital, Ankara, Turkey
| | - Mehmet Yakin
- Department of Ophthalmology, Ankara Training and Research Hospital, Ankara, Turkey
| | - Firdevs Ornek
- Department of Ophthalmology, Ankara Training and Research Hospital, Ankara, Turkey
| |
Collapse
|
8
|
Gritz DC, Schwaber EJ, Wong IG. Complications of Uveitis: The Northern California Epidemiology of Uveitis Study. Ocul Immunol Inflamm 2017; 26:584-594. [PMID: 28112975 DOI: 10.1080/09273948.2016.1247174] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
PURPOSE To describe the uveitis complications in a large, community-based cohort. METHODS Retrospective, community-based, cross-sectional cohort study analyzing complications and associations with complications. RESULTS A total of 844 cases of uveitis were found; 342 were new-onset, and 462 were prior-onset. In total, 29.5% of patients were affected by one or more complications associated with age, gender, course, and anatomic location of uveitis. Visual loss was experienced by 19.1% of patients and was associated with age, course of disease, and anatomic location of uveitis. Of the patients who developed glaucoma or elevated intraocular pressure over 30 mmHg, 3.9% (n = 33) were related solely to uveitis; 5.2% (n = 44) had an unclear or combined mechanism; and 1.8% (n = 15) were related solely to steroid response. Cystoid macular edema was associated with course of disease and anatomic location of uveitis. CONCLUSIONS Complications affect a significant portion of uveitis patients, and are often associated with demographic and clinical factors.
Collapse
Affiliation(s)
- David C Gritz
- a Francis I. Proctor Foundation for Research in Ophthalmology, San Francisco, California, USA.,b University of California, San Francisco , Department of Ophthalmology, Koret Vision Research Center , San Francisco , California , USA.,c The Permanente Medical Group, Kaiser Permanente Oakland Medical Center, Oakland, California, USA.,d Kaiser Permanente Richmond Medical Center , Richmond , California , USA
| | - Eric J Schwaber
- e Tufts University School of Medicine , Boston , Massachusetts , USA
| | - Ira G Wong
- a Francis I. Proctor Foundation for Research in Ophthalmology, San Francisco, California, USA.,b University of California, San Francisco , Department of Ophthalmology, Koret Vision Research Center , San Francisco , California , USA.,f Stanford University , Department of Ophthalmology , Stanford , California , USA
| |
Collapse
|
9
|
Pathanapitoon K, Dodds EM, Cunningham ET, Rothova A. Clinical Spectrum of HLA-B27-associated Ocular Inflammation. Ocul Immunol Inflamm 2016; 25:569-576. [DOI: 10.1080/09273948.2016.1185527] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
| | - Emilio M. Dodds
- Consultores Oftalmológicos, Hospital Juan A. Fernández, Buenos Aires, Argentina
| | - Emmett T. Cunningham
- The Department of Ophthalmology, California Pacific Medical Center, San Francisco, California, USA
- Department of Ophthalmology, Stanford University School of Medicine, Stanford, California, USA
- The Francis I. Proctor Foundation, UCSF School of Medicine, San Francisco, California, USA
- West Coast Retina Medical Group, San Francisco, California, USA
| | - Aniki Rothova
- Department of Ophthalmology, Erasmus Medical Center, Rotterdam, The Netherlands
| |
Collapse
|
10
|
Liu X, Zhao C, Xu T, Gao F, Wen X, Wang M, Pei M, Zhang M. Visual Prognosis and Associated Factors of Phacoemulsification and Intraocular Lens Implantation in Different Uveitis Entities in Han Chinese. Ocul Immunol Inflamm 2016; 25:349-355. [PMID: 26902289 DOI: 10.3109/09273948.2015.1125512] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
PURPOSE To address the visual prognosis and associated predictors of phacoemulsification and intraocular lens implantation in different uveitis entities in Han Chinese. METHODS A retrospective review of the uveitis patients who underwent phacoemulsification and intraocular lens implantation in our center between 2004 and 2014. RESULTS The 158 patients (226 eyes) included anterior uveitis (45 eyes), posterior/pan-uveitis (61 eyes), Vogt-Koyanagi-Harada disease (79 eyes) and Behçet disease (41 eyes). At 6 months after surgery, best-corrected visual acuity (BCVA) significantly improved (p < 0.001) in all uveitis groups with 134 (59.3%) eyes achieving 20/40 or better. The anterior uveitis and Behçet disease groups had significantly better and worse visual outcomes than other groups, respectively. Poor preoperative BCVA, macular lesions, and secondary glaucoma were independent variables that predicted a poor visual outcome. CONCLUSIONS Our current study revealed a generally favorable outcome and associated predictors of phacoemulsification and intraocular lens implantation in uveitic cataracts in Han Chinese.
Collapse
Affiliation(s)
- Xinshu Liu
- a Department of Ophthalmology, Peking Union Medical College Hospital , Chinese Academy of Medical Sciences and Peking Union Medical College , Beijing , China
| | - Chan Zhao
- a Department of Ophthalmology, Peking Union Medical College Hospital , Chinese Academy of Medical Sciences and Peking Union Medical College , Beijing , China
| | - Tao Xu
- b Department of Epidemiology and Statistics , Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences and School of Basic Medicine, Peking Union Medical College , Beijing , China
| | - Fei Gao
- a Department of Ophthalmology, Peking Union Medical College Hospital , Chinese Academy of Medical Sciences and Peking Union Medical College , Beijing , China
| | - Xin Wen
- c Department of Ophthalmology, Sun Yat-sen Memorial Hospital , Sun Yat-sen University , Guangzhou , China
| | - Min Wang
- a Department of Ophthalmology, Peking Union Medical College Hospital , Chinese Academy of Medical Sciences and Peking Union Medical College , Beijing , China
| | - Minghang Pei
- a Department of Ophthalmology, Peking Union Medical College Hospital , Chinese Academy of Medical Sciences and Peking Union Medical College , Beijing , China
| | - Meifen Zhang
- a Department of Ophthalmology, Peking Union Medical College Hospital , Chinese Academy of Medical Sciences and Peking Union Medical College , Beijing , China
| |
Collapse
|