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Du Y, Di Y, Yang S, Mo F, Cui G, Chen D, Li Y. Association of myopia and astigmatism with postoperative ocular high order aberration after small incision lenticule extraction. BMC Ophthalmol 2024; 24:211. [PMID: 38741093 DOI: 10.1186/s12886-024-03475-w] [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: 02/08/2024] [Accepted: 05/02/2024] [Indexed: 05/16/2024] Open
Abstract
OBJECTIVE To investigate the correlation between higher-order aberrations (HOA) after small incision lenticule extraction (SMILE) and the severity of myopia and astigmatism, along with the relevant factors. These findings will provide valuable insights for decreasing the occurrence of HOA after SMILE and enhancing visual quality. METHODS A total of 75 patients (150 eyes) with myopia and astigmatism who underwent SMILE were categorized into four groups based on the severity of myopia and astigmatism: Myopia Group 1 (Group M1, spherical diopter ranged from -1.00 D to -4.00 D), Myopia Group 2 (Group M2, spherical diopter ranged from -4.10 D to -10.00 D), Astigmatism Group 1 (Group A1, cylindrical diopter ranged from 0 D to -1.00 D), and Astigmatism Group 2 (Group A2, cylindrical diopter ranged from -1.10 D to -3.00 D). A comprehensive assessment was performed to examine the association between HOA and various relevant factors, including a detailed analysis of the subgroups. RESULTS Group M1 had significantly lower levels of total eye coma aberration (CA), corneal total HOA (tHOA), internal tHOA, and vertical CA ( Z 3 - 1 ) after SMILE than Group M2 (P < 0.05). Similarly, Group A1 had significantly lower levels of total eye tHOA, CA, trefoil aberration (TA), corneal tHOA, TA, and vertical TA ( Z 3 - 3 ) after SMILE than Group A2 (P < 0.05). Pearson correlation analysis indicated a statistically significant positive relationship between the severity of myopia/astigmatism and most HOA (P < 0.05). Subgroup evaluations demonstrated a notable increase in postoperative HOA associated with myopia and astigmatism in Groups M2 and A2 compared with the control group. Lenticule thickness, postoperative central corneal thickness (CCT), postoperative uncorrected distance visual acuity (UDVA), and postoperative corneal Km and Cyl were strongly correlated with most HOA. Age, eyes, and postoperative intraocular pressure (IOP) were only associated with specific HOA. CONCLUSION HOA positively correlated with the severity of myopia and astigmatism after SMILE. However, this relationship was not linear. HOA after SMILE was influenced by various factors, and additional specialized investigations are required to establish its clinical importance.
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Affiliation(s)
- Yifan Du
- Department of Ophthalmology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, People's Republic of China
| | - Yu Di
- Department of Ophthalmology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, People's Republic of China
| | - Shan Yang
- Department of Ophthalmology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, People's Republic of China
| | - Fei Mo
- Department of Ophthalmology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, People's Republic of China
| | - Ge Cui
- Department of Ophthalmology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, People's Republic of China
| | - Di Chen
- Department of Ophthalmology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, People's Republic of China
| | - Ying Li
- Department of Ophthalmology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, People's Republic of China.
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Niazi S, Doroodgar F, Nazari SH, Rahimi Y, Del Barrio JLA, Gatzioufas Z, Findl O, Vinciguerra P, Vinciguerra R, Moshirfar M, Ambrósio R, Alio JL. Refractive surgical approaches to keratoconus: A systematic review and network meta-analysis. Surv Ophthalmol 2024:S0039-6257(24)00045-6. [PMID: 38710236 DOI: 10.1016/j.survophthal.2024.04.008] [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: 10/25/2023] [Revised: 04/25/2024] [Accepted: 04/29/2024] [Indexed: 05/08/2024]
Abstract
Advancements in diagnostic methods and surgical techniques for keratoconus (KC) have increased non-invasive treatment options. Successful surgical planning for KC involves a combination of clinical science, empirical evidence, and surgical expertise. Assessment of disease progression is crucial, and halting the progression should be the focus if it is progressive. While surgeons used to rely on experience alone to decide the surgical method, comparing the network of primary factors, such as visual acuity, across studies can help them choose the most appropriate treatments for each patient and achieve optimal outcomes. Meticulous tabulation methods facilitate interpretation, highlighting the importance of selecting the correct surgical and rehabilitation approach based on each patient's condition and stage of the disease. We detail the outcomes of a comprehensive network meta-analysis comparing the effectiveness of various combined therapeutic refractive treatments for KC at identical stages of the disease, spanning four distinct follow-up intervals. Additionally, the comprehensive analysis suggests that for corneas with optimal best corrected visual acuity (BCVA) preoperatively (classified as regular), combining phakic intraocular lenses with intracorneal ring segments (ICRS) and corneal cross-linking (CXL) could offer the best therapeutic approach provided the disease stage does not exceed stage 3. For irregular corneas, although initial follow-ups show a significant difference in BCVA with surface ablation, longer-term follow-ups recommend combining surface ablation with ICRS and CXL, especially at higher stages.
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Affiliation(s)
- Sana Niazi
- Negah Aref Ophthalmic Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran; Translational Ophthalmology Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Farideh Doroodgar
- Negah Aref Ophthalmic Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran; Translational Ophthalmology Research Center, Tehran University of Medical Sciences, Tehran, Iran.
| | - Saeed Hashemi Nazari
- Prevention of Cardiovascular Disease Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Yekta Rahimi
- Student Research Committee, School of Public Health and Safety, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Jorge L Alió Del Barrio
- Vissum Miranza, Alicante, Spain; Division of Ophthalmology, Universidad Miguel Hernández, Alicante, Spain
| | | | - Oliver Findl
- Vienna Institute for Research in Ocular Surgery (VIROS), A Karl Landsteiner Institute, Hanusch Hospital, 1140, Vienna, Austria
| | - Paolo Vinciguerra
- Biomedical Sciences, Humanitas University, Milan, Italy; IRCCS Humanitas Research Hospital, Rozzano, Italy
| | | | - Majid Moshirfar
- John A. Moran Eye Center, University of Utah, Salt Lake City, Utah, USA
| | - Renato Ambrósio
- Instituto de Olhos Renato Ambrósio, Rio de Janeiro, Brazil; Rio de Janeiro Corneal Tomography and Biomechanics Study Group, Rio de Janeiro, Brazil; BrAIN: Brazilian Artificial Intelligence Networking in Medicine, Rio de Janeiro & Maceió, Brazil; Department of Ophthalmology, Federal University the state of Rio de Janeiro (UNIRIO), Rio de Janeiro, Brazil; Department of Ophthalmology, Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, Brazil
| | - Jorge L Alio
- Vissum Miranza, Alicante, Spain; Division of Ophthalmology, Universidad Miguel Hernández, Alicante, Spain
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Bi Y, Lin S. Refractive Changes After Horizontal Strabismus Surgery. Curr Eye Res 2024; 49:533-537. [PMID: 38223914 DOI: 10.1080/02713683.2024.2302543] [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: 07/21/2023] [Accepted: 01/02/2024] [Indexed: 01/16/2024]
Abstract
PURPOSE To investigate the changes in refractive status after surgery in patients with horizontal strabismus and high refractive error. METHODS This was a prospective study of patients with horizontal strabismus and high refractive error. The patients were divided into a horizontal rectus recession group (group 1) and a horizontal rectus recession combined with horizontal rectus resection group (group 2). The postoperative follow-up duration was 3 months. The refractive status of the patients was evaluated at each postoperative examination, and the refractive changes in the two groups were compared. RESULTS The spherical equivalent in group 1 changed by -0.26 D at 3 months postoperatively relative to the preoperative value (p = 0.078), indicating gradual progression toward myopia over time, but the difference was not significant; however, the postoperative cylinder in group 1 significantly increased by 0.34 D at 3 months postoperatively relative to the preoperative value (p = 0.03). The spherical equivalent in group 2 also indicated progression toward myopia; compared with the preoperative value, the spherical equivalent significantly decreased by -0.28 D (p = 0.019) at 1 month postoperatively and decreased by -0.21 D at 3 months postoperatively. The regression line drawn among the points also indicated a progression in the spherical equivalent toward myopia. In group 2, the cylinder increased by 0.30 D (p = 0.004) from the preoperative level at 1 month postoperatively, peaked, then decreased by 3 months postoperatively. CONCLUSIONS Patients with high refractive error who undergo horizontal strabismus correction will experience myopic shift. Patients who undergo rectus recession surgery should be fully informed of the possibility of changes in astigmatism preoperatively. For patients who undergo horizontal rectus recession combined with horizontal rectus resection, it is not recommended that glasses be changed within 1 month after surgery.
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Affiliation(s)
- Yu Bi
- Department of Ophthalmology, Joint Shantou International Eye Center of Shantou University, The Chinese University of Hong Kong, Guangdong Province, Shantou, China
| | - Shibin Lin
- Department of Ophthalmology, Joint Shantou International Eye Center of Shantou University, The Chinese University of Hong Kong, Guangdong Province, Shantou, China
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Icoz M, Yildirim B, Gurturk Icoz SG. Comparison of different methods of correcting astigmatism in cataract surgery. Clin Exp Optom 2024; 107:409-414. [PMID: 37699788 DOI: 10.1080/08164622.2023.2239816] [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: 05/08/2023] [Revised: 07/11/2023] [Accepted: 07/19/2023] [Indexed: 09/14/2023] Open
Abstract
CLINICAL RELEVANCE Astigmatism causes a decrement in visual acuity, and deterioration in visual quality. BACKGROUND The aim of this study is to compare clear corneal incision (CCI) in the steepest meridian, opposed clear corneal incision (OCCI) and toric intraocular lens implantation methods for the correction of astigmatism in cataract surgery. METHODS Total of 93 preoperative patients with the rule corneal astigmatism (between 1.00-3.00 D)underwent uncomplicated cataract surgery are retrospectively included in this study. Whole patients are divided into three groups of equal number of patients of 31 by considering the astigmatism correcting methods that are as follows. Group 1 consists of patients underwent CCI on the steepest meridian, group 2 consists of the patients underwent paired OCCI, and group 3 consists of those with toric intraocular lens implantation. The preoperative and postoperative 3rd month uncorrected distance visual acuity, refraction and, keratometry values, and surgically induced astigmatism values calculated by Alpins method are recorded. RESULTS The age, preoperative and postoperative 3rd month spherical, spherical equivalent refraction and keratometry values of the groups are similar (p > 0.05). The preoperative uncorrected distance visual acuity values are similar in whole groups, postoperative uncorrected distance visual acuity values are the highest in group 1, and lowest in group 3 (p = 0.85, p = 0.02, respectively). The preoperative and postoperative 3rd month mean cylinder refraction values are -1.86 D, -1.00 D in group 1, -1.77 D, -0.70 D in group 2, and -1.95 D, -0.40 D in group 3. There is a statistically significant difference among the groups (p = 0.01). The surgically induced astigmatism values are statistically different among the groups [it was 0.46 ± 0.21 in group 1, 0.91 ± 0.44 in group 2, 0.33 ± 0.18 in group 3 (p < 0.001, respectively)]. CONCLUSION This study indicated that; CCI, paired OCCI, and toric intraocular lens implantation should be preferred and performed for the steepest meridian in low D, middle D, and high D astigmatism patients, respectively. CCI can easily be applied for low to medium D without needing extra skills and tools. On the other hand, toric intraocular lens implantation is a better option for a high astigmatism with proper and accurate planning before the surgery.
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Affiliation(s)
- Mehmet Icoz
- Department of Ophthalmology, Yozgat City Hospital, Yozgat, Turkey
| | - Busra Yildirim
- Department of Ophthalmology, Besni State Hospital, Adıyaman, Turkey
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Yang X, Liu Y, Xiao K, Song Q, Xu Y, Li J, Zhou Y. Effect of Cyclotorsion Compensation in Small Incision Lenticule Extraction Surgery for the Correction of Myopic Astigmatism: A Systematic Review and Meta-Analysis. Ophthalmol Ther 2024; 13:1271-1288. [PMID: 38498276 DOI: 10.1007/s40123-024-00921-2] [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: 12/28/2023] [Accepted: 02/29/2024] [Indexed: 03/20/2024] Open
Abstract
INTRODUCTION Small incision lenticule extraction (SMILE) has made notable advancements in addressing myopic astigmatism. Nevertheless, the potential impact of cyclotorsion on surgical outcomes cannot be overlooked. This study aims to assess the effectiveness of cyclotorsion compensation technology in SMILE surgery for the correction of myopic astigmatism, examining its influence on postoperative visual quality. METHODS A systematic review and meta-analysis were conducted. A comprehensive literature search was performed using databases, including PubMed, Web of Science, EMBASE, Cochrane Library, EBSCO, Scopus, CNKI, VIP, and Wan Fang. Studies meeting the criteria were selected and included. Data were independently extracted by three authors. Clinical outcome parameters were analyzed using Review Manager version 5.3. RESULTS This meta-analysis included ten studies. The results showed that, compared with the control group (cyclotorsion compensation was not performed in SMILE), the following indicators in the cyclotorsion compensation group were: residual astigmatism (RA) [weighted mean difference (MD) = 0.73, 95% confidence interval (CI) + 0.26 to + 1.19, P = 0.002], spherical equivalent (SE) (MD = 1.99, 95% CI + 0.77 to + 3.21, P = 0.001), coma (MD = -0.06, 95% CI -0.08 to -0.04, P < 0.00001), higher-order aberrations (HOAs) (MD = -0.04, 95% CI -0.06 to -0.02, P < 0.0001), follow-up 6-month angle of error (AE) (MD = -2.67, 95% CI -3.71 to -1.63, P < 0.00001), and follow-up 6-month uncorrected distance visual acuity (UDVA) (MD = -0.05, 95% CI -0.08 to -0.01, P = 0.005), and the differences in results were statistically significant. However, the differences among correction index, index of success (IOS), targeted induced astigmatism (TIA), magnitude of error (ME), and spherical aberration (SA) were not statistically significant. CONCLUSION Cyclotorsion compensation proves to be effective and predictable for correcting myopic astigmatism. The cyclotorsion compensation group demonstrated advantages over the control group in terms of postoperative residual astigmatism, and it induced fewer coma aberrations. Whether cyclotorsion compensation can lead to better visual quality remains to be seen, and further research on correcting myopic astigmatism through cyclotorsion compensation is warranted.
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Affiliation(s)
- Xinwei Yang
- Eye College, Chengdu University of Traditional Chinese Medicine, No. 37, Twelve Bridge Road, Jinniu District, Chengdu, Sichuan, China.
- Refractive Surgery Department, Ineye Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, China.
| | - Ying Liu
- Clinical School of Medicine, Chengdu University of Chinese Medicine, Chengdu, China
| | - Kaimin Xiao
- Eye College, Chengdu University of Traditional Chinese Medicine, No. 37, Twelve Bridge Road, Jinniu District, Chengdu, Sichuan, China
| | - Qiuyi Song
- Eye College, Chengdu University of Traditional Chinese Medicine, No. 37, Twelve Bridge Road, Jinniu District, Chengdu, Sichuan, China
| | - Yunxi Xu
- Eye College, Chengdu University of Traditional Chinese Medicine, No. 37, Twelve Bridge Road, Jinniu District, Chengdu, Sichuan, China
| | - Jialing Li
- Eye College, Chengdu University of Traditional Chinese Medicine, No. 37, Twelve Bridge Road, Jinniu District, Chengdu, Sichuan, China
| | - Yuehua Zhou
- Eye College, Chengdu University of Traditional Chinese Medicine, No. 37, Twelve Bridge Road, Jinniu District, Chengdu, Sichuan, China.
- Refractive Surgery Department, Ineye Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, China.
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Ghadimi H, Nikdel M, Suh DW. Comparison of photorefraction by Plusoptix A12 and cycloplegic autorefraction in children. BMC Ophthalmol 2024; 24:179. [PMID: 38641836 PMCID: PMC11027537 DOI: 10.1186/s12886-024-03459-w] [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: 02/05/2024] [Accepted: 04/17/2024] [Indexed: 04/21/2024] Open
Abstract
BACKGROUND Plusoptix photoscreeners are capable of measuring refractive errors of children from 1 meter distance, without cyloplegia. We aimed to compare refractive data obtained from the newest version of Plusoptix (model 12) with cycloplegic autorefraction. METHODS We examined 111 consecutive children aged 3-7 years first by Plusoptix A12C under manifest condition and subsequently for cycloplegic refraction by Topcon KR-1 tabletop autorefractometer. Sphere, spherical equivalent, cylinder and axis of astigmatism measured by the two methods were analyzed to determine correlation, agreement and differences. RESULTS Binocular examination of 111 children aged 4.86±1.27 years revealed good agreement between refractive data obtained by Plusoptix and cycloautorefraction, according to Bland-Altman plots. Significant (p < 0.001) and strong correlation was found between all refractive measurements (Pearson's r value of 0.707 for sphere, 0.756 for pherical equivalent, and 0.863 for cylinder). Plusoptix mean sphere, spherical equivalent and cylinder were 1.22, 0.56, and -1.32 D, respectively. Corresponding values for cycloautorefraction were 1.63, 1.00, and -1.26 D. The difference between axis of cylinder measured by the two methods was < 10° in 144 eyes (64.9%). CONCLUSIONS Considering the significant agreement and correlation between Plusoptix photoscreener and cycloplegic autorefraction, the need for cycloplegic drops in refractive examination of children may be obviated. The mean difference between cylinder measurements are considerably trivial (0.06 D), but sphere is approximately 0.4 D underestimated by Plusoptix compared to cycloautorefraction, on average.
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Affiliation(s)
- Hadi Ghadimi
- Private Ophthalmology Practice, Atieh Medical Center, Rasht, 4144694198, Guilan, Iran
| | - Mojgan Nikdel
- Private Ophthalmology Practice, Atieh Medical Center, Rasht, 4144694198, Guilan, Iran.
| | - Donny W Suh
- Department of Ophthalmology and Visual Science, Gavin Herbert Eye Institute, University of California at Irvine, Irvine, CA, USA
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Guo Y, Zhou J, Lu J, Zhu L, Hao X, Yan S, Tong J, Tao S, Xu S, Tao F, Huang K. Association between maternal fasting glucose levels throughout pregnancy and preschoolers' refractive errors. J Clin Endocrinol Metab 2024:dgae247. [PMID: 38625056 DOI: 10.1210/clinem/dgae247] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/03/2024] [Revised: 03/23/2024] [Accepted: 04/09/2024] [Indexed: 04/17/2024]
Abstract
PURPOSE We aimed to investigate the association between maternal fasting plasma glucose (FPG) trajectories during pregnancy and children's refractive errors at 6 years old. DESIGN Based on the Ma'anshan Birth Cohort (MABC) in China, a total of 1987 mother-child pairs were included in this study. METHODS Using the group-based trajectory model, trajectory fitting was performed on fasting blood glucose levels during the first, second, and third trimesters of pregnancy. Children's vision was measured at 6 years of age using the standard logarithmic visual acuity E-chart and cycloplegic refraction examination. Logistic regression models and multi-informant generalized estimating equations were used to analyze the association between maternal blood glucose level and 6-year-old children's visual acuity. RESULTS Children born of mothers with high level FPG trajectory had a higher risk of developing refractive error [OR=1.46 (95% CI 1.08 1.97)], hypermetropia [OR=1.64 (95% CI 1.09, 2.46)] and astigmatism [OR=1.60 (95% CI 1.06, 2.41)] at age six compared to those with low level trajectory. Maternal blood glucose level in the first [β=-0.012 (95% CI -0.024, -0.001)] and the second [β=-0.016 (95% CI -0.025, -0.006)] trimesters was associated with 6 year children's distance vision value. CONCLUSIONS High level of fasting plasma glucose trajectories during pregnancy has been observed to be associated with 6-year-old children's refractive error, hypermetropia and astigmatism. The first and the second trimesters may be critical periods for the effects of maternal blood glucose on children's vision. The long-term effect of maternal glucose metabolism on children's visual development deserves further study.
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Affiliation(s)
- Yufan Guo
- Department of Maternal, Child and Adolescent Health, School of Public Health, Anhui Medical University, China; Key Laboratory of Population Health Across Life Cycle (AHMU), MOE, Hefei 230032, China; NHC Key Laboratory of Study on Abnormal Gametes and Reproductive Tract, Hefei 230032, China; Anhui Provincial Key Laboratory of Population Health and Aristogenics, Hefei 230032, China
| | - Jixing Zhou
- Department of Maternal, Child and Adolescent Health, School of Public Health, Anhui Medical University, China; Key Laboratory of Population Health Across Life Cycle (AHMU), MOE, Hefei 230032, China; NHC Key Laboratory of Study on Abnormal Gametes and Reproductive Tract, Hefei 230032, China; Anhui Provincial Key Laboratory of Population Health and Aristogenics, Hefei 230032, China
| | - Jingru Lu
- Department of Maternal, Child and Adolescent Health, School of Public Health, Anhui Medical University, China; Key Laboratory of Population Health Across Life Cycle (AHMU), MOE, Hefei 230032, China; NHC Key Laboratory of Study on Abnormal Gametes and Reproductive Tract, Hefei 230032, China; Anhui Provincial Key Laboratory of Population Health and Aristogenics, Hefei 230032, China
| | - Linlin Zhu
- Department of Maternal, Child and Adolescent Health, School of Public Health, Anhui Medical University, China; Key Laboratory of Population Health Across Life Cycle (AHMU), MOE, Hefei 230032, China; NHC Key Laboratory of Study on Abnormal Gametes and Reproductive Tract, Hefei 230032, China; Anhui Provincial Key Laboratory of Population Health and Aristogenics, Hefei 230032, China
| | - Xuemei Hao
- Department of Maternal, Child and Adolescent Health, School of Public Health, Anhui Medical University, China; Key Laboratory of Population Health Across Life Cycle (AHMU), MOE, Hefei 230032, China; NHC Key Laboratory of Study on Abnormal Gametes and Reproductive Tract, Hefei 230032, China; Anhui Provincial Key Laboratory of Population Health and Aristogenics, Hefei 230032, China
| | - Shuangqin Yan
- Department of Maternal, Child and Adolescent Health, School of Public Health, Anhui Medical University, China; Ma'anshan Maternal and Child Health Care Center, Ma'anshan, Anhui, China
| | - Juan Tong
- Department of Maternal, Child and Adolescent Health, School of Public Health, Anhui Medical University, China; Key Laboratory of Population Health Across Life Cycle (AHMU), MOE, Hefei 230032, China; NHC Key Laboratory of Study on Abnormal Gametes and Reproductive Tract, Hefei 230032, China; Anhui Provincial Key Laboratory of Population Health and Aristogenics, Hefei 230032, China
| | - Shuman Tao
- Department of Nephrology, The Second Hospital of Anhui Medical University, Hefei, China
| | - Shaojun Xu
- Department of Maternal, Child and Adolescent Health, School of Public Health, Anhui Medical University, China; Key Laboratory of Population Health Across Life Cycle (AHMU), MOE, Hefei 230032, China; NHC Key Laboratory of Study on Abnormal Gametes and Reproductive Tract, Hefei 230032, China; Anhui Provincial Key Laboratory of Population Health and Aristogenics, Hefei 230032, China
| | - Fangbiao Tao
- Department of Maternal, Child and Adolescent Health, School of Public Health, Anhui Medical University, China; Key Laboratory of Population Health Across Life Cycle (AHMU), MOE, Hefei 230032, China; NHC Key Laboratory of Study on Abnormal Gametes and Reproductive Tract, Hefei 230032, China; Anhui Provincial Key Laboratory of Population Health and Aristogenics, Hefei 230032, China
| | - Kun Huang
- Department of Maternal, Child and Adolescent Health, School of Public Health, Anhui Medical University, China; Key Laboratory of Population Health Across Life Cycle (AHMU), MOE, Hefei 230032, China; NHC Key Laboratory of Study on Abnormal Gametes and Reproductive Tract, Hefei 230032, China; Anhui Provincial Key Laboratory of Population Health and Aristogenics, Hefei 230032, China; Scientific Research Center in Preventive Medicine, School of Public Health, Anhui Medical University, Anhui Province, China
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Fukushima M, Hirota M, Yukimori T, Hayashi A, Hirohara Y, Saika M, Matsuoka K. Evaluation of objective and subjective binocular ocular refraction with looking in type. BMC Ophthalmol 2024; 24:170. [PMID: 38627750 PMCID: PMC11020990 DOI: 10.1186/s12886-024-03449-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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2023] [Accepted: 04/10/2024] [Indexed: 04/19/2024] Open
Abstract
BACKGROUND This study aimed to compare the results of the Chronos binocular/monocular refraction system, that measures objective and subjective ocular refraction in one unit, to objective findings obtained from a conventional autorefractometer and a conventional subjective ocular refraction using a trial-frame in real space. METHODS Twenty-eight healthy volunteers (21.2 ± 1.5 years old) were included in this study. Objective ocular refraction was measured using two tests: the Chronos binocular/monocular refraction system under binocular conditions and a conventional autorefractometer under monocular conditions. Subjective ocular refraction was measured using three tests: Chronos binocular/monocular refraction system under binocular, monocular conditions, and trial-frame in the real space under monocular conditions. The measurement distance was set to 5.0 m for each test. All ocular refractions were converted into spherical equivalents (SEs). RESULTS The objective SE was significantly more negative with Chronos binocular/monocular refraction system under binocular condition (- 4.08 ± 2.76 D) than with the conventional autorefractometer under monocular condition (- 3.85 ± 2.66 D) (P = 0.002). Although, the subjective SE was significantly more negative with Chronos binocular/monocular refraction system under binocular condition (- 3.55 ± 2.67 D) than with the trial-frame in the real space under monocular condition (- 3.33 ± 2.75 D) (P = 0.002), Chronos binocular/monocular refraction system under monocular condition (- 3.17 ± 2.57 D) was not significantly different from that in trial-frame in real space under monocular condition (P = 0.33). CONCLUSION These findings suggest that the Chronos binocular/monocular refraction system, which can complete both objective and subjective ocular refraction tests in a single unit, is suitable for screening ocular refraction, although it produces slightly more myopic results. Furthermore, subjective ocular refraction testing accuracy in Chronos binocular/monocular refraction system can be equivalent to trial-frame in real-space testing by switching from binocular to monocular condition.
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Affiliation(s)
- Megumi Fukushima
- Division of Orthoptics, Graduate School of Medical Care and Technology, Teikyo University, Itabashi, Tokyo, Japan
| | - Masakazu Hirota
- Department of Orthoptics, Faculty of Medical Technology, Teikyo University, 2-11-1 Kaga, Itabashi, 173-8605, Itabashi, Tokyo, Japan.
- Department of Ophthalmology, School of Medicine, Teikyo University, Itabashi, Tokyo, Japan.
| | | | | | | | | | - Kumiko Matsuoka
- Department of Orthoptics, Faculty of Medical Technology, Teikyo University, 2-11-1 Kaga, Itabashi, 173-8605, Itabashi, Tokyo, Japan
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Bian L, Ma B, Sun Z, Li W, Liu Y, Qin R, Chen J, Ma Y, Zhao L, Qi H. Prevalence data for total corneal astigmatism in cataract patients. Graefes Arch Clin Exp Ophthalmol 2024:10.1007/s00417-024-06488-9. [PMID: 38613688 DOI: 10.1007/s00417-024-06488-9] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2023] [Revised: 03/05/2024] [Accepted: 04/09/2024] [Indexed: 04/15/2024] Open
Abstract
PURPOSE To report the prevalence data for total corneal astigmatism (TCA) in cataract patients. METHODS The authors retrospectively collected and analyzed the preoperative biometric data of the patients who underwent cataract surgery in the Department of Ophthalmology, Peking University Third Hospital, from January 2019 to May 2023. RESULTS The mean age of the 10817 patients was 71 ± 10 years; the male/female ratio was 4653/6164. The mean TCA obtained by the IOLMaster 700 (Carl Zeiss Meditec AG, Jena, Germany), the Abulafia-Koch (AK) formula, and the Barrett toric calculator was 1.11 ± 0.81 diopter (D), 1.13 ± 0.75 D, and 1.12 ± 0.74 D respectively, which was significantly greater than the mean standard keratometric (K) astigmatism (0.99 ± 0.75 D) obtained by IOLMaster 700. Against-the-rule (ATR) astigmatism was dominant in all the TCA measurements, and its proportion increased with age. TCA measurements by different methods exhibit high variability, with a total of 1574 (8.9%) data sets from 1016 (9.4%) patients showing a difference larger than 0.5 D in at least one pair of TCA measurements. CONCLUSION The use of TCA rather than K astigmatism significantly influenced the choice of intraocular lenses (IOLs) as more patients would be candidates for toric IOLs. It was essential to carefully compare and select TCA obtained with multiple methods for optimal postoperative visual quality.
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Affiliation(s)
- Linbo Bian
- Department of Ophthalmology, Beijing Key Laboratory of Restoration of Damaged Ocular Nerve, Peking University Third Hospital, Beijing, 100191, China
| | - Baikai Ma
- Department of Ophthalmology, Beijing Key Laboratory of Restoration of Damaged Ocular Nerve, Peking University Third Hospital, Beijing, 100191, China
| | - Zhengze Sun
- Department of Ophthalmology, Beijing Key Laboratory of Restoration of Damaged Ocular Nerve, Peking University Third Hospital, Beijing, 100191, China
| | - Wenlong Li
- Department of Ophthalmology, Beijing Key Laboratory of Restoration of Damaged Ocular Nerve, Peking University Third Hospital, Beijing, 100191, China
| | - Yiyun Liu
- Department of Ophthalmology, Beijing Key Laboratory of Restoration of Damaged Ocular Nerve, Peking University Third Hospital, Beijing, 100191, China
| | - Rui Qin
- Department of Ophthalmology, Beijing Key Laboratory of Restoration of Damaged Ocular Nerve, Peking University Third Hospital, Beijing, 100191, China
| | - Jiawei Chen
- Department of Ophthalmology, Beijing Key Laboratory of Restoration of Damaged Ocular Nerve, Peking University Third Hospital, Beijing, 100191, China
| | - Yunke Ma
- Department of Ophthalmology, Beijing Key Laboratory of Restoration of Damaged Ocular Nerve, Peking University Third Hospital, Beijing, 100191, China
| | - Lu Zhao
- Department of Ophthalmology, Beijing Key Laboratory of Restoration of Damaged Ocular Nerve, Peking University Third Hospital, Beijing, 100191, China
| | - Hong Qi
- Department of Ophthalmology, Beijing Key Laboratory of Restoration of Damaged Ocular Nerve, Peking University Third Hospital, Beijing, 100191, China.
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Pastor-Pascual F, Orts-Vila P, Tañá-Sanz P, Tañá-Sanz S, Ruiz-Mesa R, Tañá-Rivero P. Non-diffractive, toric, extended depth-of-focus intraocular lenses in eyes with low corneal astigmatism. Eye Vis (Lond) 2024; 11:14. [PMID: 38556883 PMCID: PMC10983649 DOI: 10.1186/s40662-024-00380-7] [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] [Subscribe] [Scholar Register] [Received: 08/21/2023] [Accepted: 03/07/2024] [Indexed: 04/02/2024]
Abstract
BACKGROUND To assess clinical outcomes after implanting toric, extended-depth-of-focus intraocular lenses (IOLs) to correct low corneal astigmatism in eyes with cataracts. METHODS 47 eyes were implanted with the AcrySof IQ Vivity Toric DFT215 IOL. Main outcome measures were refractive error, monocular uncorrected and corrected distance (UDVA/CDVA), uncorrected and distance-corrected intermediate (UIVA/DCIVA), and uncorrected near and distance-corrected near (UNVA/DCNVA) visual acuities, monocular defocus curve, rotational stability, and IOLSAT and QUVID questionnaires. Patients were assessed at 3 months postsurgery. RESULTS All eyes had a postoperative spherical equivalent (SE) within ± 0.50 D and 97.87% (n = 46) had a refractive cylinder ≤ 0.50 D. The mean SE and refractive cylinder were - 0.10 ± 0.17 D and - 0.16 ± 0.24 D, respectively. The CDVA was ≥ 20/25 and ≥ 20/32 in 95.74% (n = 45) and 97.87% (n = 46) of eyes, respectively. The DCIVA was ≥ 20/32 in 85.11% (n = 40) of eyes and the DCNVA was ≥ 20/40 in 74.47% (n = 35). The mean values of CDVA, DCIVA, and DCNVA were - 0.02 ± 0.08, 0.14 ± 0.09, and 0.23 ± 0.12 logMAR, respectively. The defocus curve revealed good visual acuity at far and intermediate distances with a depth-of-focus of about 1.75 D. IOL rotation was 0.74 ± 1.13 degrees and all eyes had a rotation of less than 5 degrees. Patients reported either good or very good postoperative vision without eyeglasses under bright-light-conditions at distance (87.80%, 36/41) and intermediate distance (92.68%, 38/41). Between about 63.83%-72.34% (30-34) of patients reported no starburst, halos, or glare, or if experienced, were not bothersome. CONCLUSIONS The Vivity toric IOL implanted in eyes with low-astigmatism provides accurate refractive outcomes, good visual acuity at different distances and excellent rotational stability. Trial Registration The study was registered with the German Clinical Trials Register (DRKS00030579).
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Pérez-Sanz L, Vega F, Azor-Morón JA, Cuellar F, Millán MS, Garzón N. Tolerance to residual astigmatism of an isofocal intraocular lens. Graefes Arch Clin Exp Ophthalmol 2024; 262:1169-1180. [PMID: 37950754 DOI: 10.1007/s00417-023-06305-9] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2023] [Revised: 10/12/2023] [Accepted: 10/23/2023] [Indexed: 11/13/2023] Open
Abstract
PURPOSE To evaluate the impact of residual astigmatism on the optical and visual performance of an enhanced-monofocal isofocal intraocular lens (EM Isopure, BVI medical, Belgium) compared to a monofocal one (Micropure, BVI medical, Belgium). METHODS Laboratory investigation and prospective, comparative and randomized clinical study. Optical quality was assessed on an optical bench for 2.0, 3.0, and 4.5 mm pupils. The effect of residual astigmatism was investigated from through-focus images recorded with increasing amounts of regular positive astigmatism induced with a deformable mirror. To evaluate the impact of residual astigmatism, 28 eyes of 28 patients were randomly assigned to either group. Residual astigmatism was induced with positive and negative cylinder lenses at 90 and 180°. Visual acuity (VA) was measured at each step. RESULTS The optical performance of both IOLs was quite similar for 2.0 and 3.0 mm pupils. For 4.5-mm pupil, the EM Isopure showed a significant reduction of its optical quality in comparison with the monofocal IOL. When visual performance was evaluated, no statistically significant differences were found for any power of induced astigmatism. More differences were found when positive induced astigmatism was compared within each group, and VA was better when the astigmatism was induced at 180° vs. 90°. The greatest differences were found for and induced positive astigmatism of + 1.50D (p = 0.009 for Isopure and p = 0.023 for Micropure). CONCLUSIONS The tolerance to residual astigmatism of the EM Isopure lens is similar to that of a reference monofocal lens with pupils up to 3.5 mm.
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Affiliation(s)
- Lidia Pérez-Sanz
- Optometry and Vision Department, Faculty of Optics and Optometry, Complutense University of Madrid, Avda. Arcos de Jalón 118, 28037, Madrid, Spain.
- Miranza IOA. C/Galileo 104, 28003, Madrid, Spain.
| | - Fidel Vega
- Grupo de Óptica Aplicada y Procesado de Imagen (GOAPI), Department of Optics and Optometry, Universitat Politècnica de Catalunya BarcelonaTech, Violinista Vellsolà 37, 08222, Terrassa, Spain
| | - Juan A Azor-Morón
- Grupo de Óptica Aplicada y Procesado de Imagen (GOAPI), Department of Optics and Optometry, Universitat Politècnica de Catalunya BarcelonaTech, Violinista Vellsolà 37, 08222, Terrassa, Spain
| | - Fátima Cuellar
- Grupo de Óptica Aplicada y Procesado de Imagen (GOAPI), Department of Optics and Optometry, Universitat Politècnica de Catalunya BarcelonaTech, Violinista Vellsolà 37, 08222, Terrassa, Spain
| | - María S Millán
- Grupo de Óptica Aplicada y Procesado de Imagen (GOAPI), Department of Optics and Optometry, Universitat Politècnica de Catalunya BarcelonaTech, Violinista Vellsolà 37, 08222, Terrassa, Spain
| | - Nuria Garzón
- Optometry and Vision Department, Faculty of Optics and Optometry, Complutense University of Madrid, Avda. Arcos de Jalón 118, 28037, Madrid, Spain
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Wei C, Liu J, Zhang C, Liu JY, Lu YM. Clinical outcomes of SMILE and WFG-LASIK used to treat myopia and astigmatism: A systematic review and meta-analysis. J Fr Ophtalmol 2024; 47:104085. [PMID: 38377878 DOI: 10.1016/j.jfo.2024.104085] [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: 07/23/2023] [Accepted: 09/18/2023] [Indexed: 02/22/2024]
Abstract
PURPOSE To evaluate the safety, efficacy and postoperative visual quality of small incision lenticule extraction (SMILE) and Wavefront-Guided Laser in situ keratomileusis (WFG-LASIK) and to analyze their efficacy in correcting astigmatism. METHODS A systematic literature search was performed using Cochrane Collaboration methodology. Databases searched included PubMed, Embase, the Cochrane Library and Web of Science. RevMan software version 5.3.0 was used for meta-analysis. RESULTS A total of 976 eyes were included in 8 studies, of which 539 eyes underwent SMILE and 437 eyes underwent WFG-LASIK. There were no statistically significant differences in the proportion of eyes achieving uncorrected distance visual acuity of 20/20 or better (P=0.18), the proportion of eyes within±0.50 diopter of target refraction postoperatively (P=0.10), or the postoperative magnitude of cylinder (P=0.10). Regarding the Alpins vector analysis of astigmatism, there was no statistically significant difference in the surgical magnitude of error (P=0.09) between the two groups. WFG-LASIK has a lower surgical angle of error (P= 0.002) and higher surgical correction index of cylinder (P=0.03) than SMILE. In terms of aberrations, higher order aberrations (P=0.46), spherical aberrations (P=0.22) and trefoil (P=0.56) were not statistically different, while WFG-LASIK induced less coma than SMILE surgery (P=0.02). CONCLUSION Both SMILE and WFG-LASIK are safe and effective ways to correct myopia and astigmatism. Compared with SMILE, WFG-LASIK has a lower surgical angle of error, higher surgical correction index of cylinder and induces less coma.
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Affiliation(s)
- C Wei
- Department of Ophthalmology, The Six Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Yinquan Road B24, Guangdong, Qingyuan, China
| | - J Liu
- Department of Ophthalmology, The Six Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Yinquan Road B24, Guangdong, Qingyuan, China
| | - C Zhang
- Department of Ophthalmology, The Six Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Yinquan Road B24, Guangdong, Qingyuan, China
| | - J Y Liu
- Department of Ophthalmology, The Six Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Yinquan Road B24, Guangdong, Qingyuan, China
| | - Y M Lu
- Department of Ophthalmology, The Six Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Yinquan Road B24, Guangdong, Qingyuan, China.
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Wang Y, Mu J, Yang Y, Li X, Qin H, Mulati B, Wang Z, Gong W, Zhao Y, Gao Y. Prevalence and risk factors for astigmatism in 7 to 19-year-old students in Xinjiang, China: a cross-sectional study. BMC Ophthalmol 2024; 24:116. [PMID: 38481203 PMCID: PMC10935971 DOI: 10.1186/s12886-024-03382-0] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2023] [Accepted: 03/06/2024] [Indexed: 03/17/2024] Open
Abstract
BACKGROUND To investigate the prevalence and risk factors for astigmatism in 7-19-year-old students in Xinjiang, China. METHODS A school-based, cross-sectional study was conducted on students who underwent refraction examination in Xinjiang, China, between May and December 2019. The prevalence of astigmatism was determined. Astigmatism was defined as cylinder power (C) ≤-0.75 D, undefined astigmatism as ≤-1.50 D, and high astigmatism as C ≤-3.00 D. Astigmatism types were: against-the-rule astigmatism (maximum refraction of the main meridian in 180° ± 30°), with-the-rule astigmatism (maximum refraction of the main meridian at 90°±30°), and oblique astigmatism (all other cases). RESULTS Of the 71,838 students examined (51.0% boys, 7 - 19 years old), 25,945 (36.1%, 95%CI: 35.52-36.68%) had astigmatism and 1267 (1.8%, 95%CI: 1.07-2.53%) had high astigmatism. The prevalence of astigmatism was greater in Han individuals (39.6%) compared with the Hui (34.0%), Kazakh (34.0%), Kyrgyz (32.1%), and Uyghur (26.4%) populations. Among the 25,945 students with astigmatism, 19,947 had with-the-rule astigmatism (76.9%), 3405 had against-the-rule astigmatism (13.1%), and 2593 had oblique astigmatism (10.0%). Multivariable logistic regression analysis showed that ethnicity (Han individuals more susceptible), male gender, age, and refractive errors (myopia and hyperopia) were independently associated with astigmatism, high astigmatism, and with-the-rule astigmatism (all P < 0.05). CONCLUSIONS The prevalence of astigmatism among children and adolescents in Xinjiang was 36.1%, including 1.8% of high astigmatism. In this population, astigmatism was mainly of the with-the-rule astigmatism type (76.9%). Han ethnicity, male gender, and myopia or hyperopia were independently associated with a high risk of astigmatism.
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Affiliation(s)
- Yan Wang
- Department of Ophthalmology, Traditional Chinese Medicine Hospital of Xinjiang Uyghur Autonomous Regional, No. 116 Huanghe Road, Shayibake District, 830099, Ürümqi, Xinjiang, China
| | - Jingyu Mu
- Department of Ophthalmology, Traditional Chinese Medicine Hospital of Xinjiang Uyghur Autonomous Regional, No. 116 Huanghe Road, Shayibake District, 830099, Ürümqi, Xinjiang, China
| | - Yining Yang
- Department of Ophthalmology, Traditional Chinese Medicine Hospital of Xinjiang Uyghur Autonomous Regional, No. 116 Huanghe Road, Shayibake District, 830099, Ürümqi, Xinjiang, China
| | - Xiaolong Li
- Department of Ophthalmology, Traditional Chinese Medicine Hospital of Xinjiang Uyghur Autonomous Regional, No. 116 Huanghe Road, Shayibake District, 830099, Ürümqi, Xinjiang, China
| | - Han Qin
- Department of Ophthalmology, Traditional Chinese Medicine Hospital of Xinjiang Uyghur Autonomous Regional, No. 116 Huanghe Road, Shayibake District, 830099, Ürümqi, Xinjiang, China
| | - Batima Mulati
- Department of Ophthalmology, Traditional Chinese Medicine Hospital of Xinjiang Uyghur Autonomous Regional, No. 116 Huanghe Road, Shayibake District, 830099, Ürümqi, Xinjiang, China
| | - Zhen Wang
- School of Public Health, Xinjiang Medical University, No. 393 Xinyi Road, Xinshi District, Ürümqi, Xinjiang, China
| | - Wei Gong
- Department of Ophthalmology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, No.100 Haining Road, Shanghai, China
| | - Yong Zhao
- Department of Ophthalmology, Traditional Chinese Medicine Hospital of Xinjiang Uyghur Autonomous Regional, No. 116 Huanghe Road, Shayibake District, 830099, Ürümqi, Xinjiang, China.
| | - Yunxian Gao
- Department of Ophthalmology, Traditional Chinese Medicine Hospital of Xinjiang Uyghur Autonomous Regional, No. 116 Huanghe Road, Shayibake District, 830099, Ürümqi, Xinjiang, China.
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Mastronarde DN. Accurate, automatic determination of astigmatism and phase with Ctfplotter in IMOD. J Struct Biol 2024; 216:108057. [PMID: 38182035 PMCID: PMC10939802 DOI: 10.1016/j.jsb.2023.108057] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2023] [Revised: 12/22/2023] [Accepted: 12/28/2023] [Indexed: 01/07/2024]
Abstract
Ctfplotter in the IMOD software package is a flexible program for determination of CTF parameters in tilt series images. It uses a novel approach to find astigmatism by measuring defocus in one-dimensional power spectra rotationally averaged over a series of restricted angular ranges. Comparisons with Ctffind, Gctf, and Warp show that Ctfplotter's estimated astigmatism is generally more reliable than that found by these programs that fit CTF parameters to two-dimensional power spectra, especially at higher tilt angles. In addition to that intrinsic advantage, Ctfplotter can reduce the variability in astigmatism estimates further by summing results over multiple tilt angles (typically 5), while still finding defocus for each individual image. Its fitting strategy also produces better phase estimates. The program now includes features for tuning the sampling of the power spectrum so that it is well-represented for analysis, and for determining an appropriate fitting range that can vary with tilt angle. It can thus be used automatically in a variety of situations, not just for fitting tilt series, and has been integrated into the SerialEM acquisition software for real-time determination of focus and astigmatism.
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Affiliation(s)
- David N Mastronarde
- Department of Molecular, Cellular, and Developmental Biology, University of Colorado, 347 UCB, Boulder, CO 80309, United States.
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Sun J, Bai H, Cui W, Wu X. Comparison of clinical outcome after implantation of two toric intraocular lenses with different haptic type: a prospective randomized controlled trial. Graefes Arch Clin Exp Ophthalmol 2024; 262:847-855. [PMID: 37672101 DOI: 10.1007/s00417-023-06232-9] [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: 04/06/2023] [Revised: 07/19/2023] [Accepted: 08/27/2023] [Indexed: 09/07/2023] Open
Abstract
OBJECTIVE To study the effect of astigmatism correction, rotational stability, and related factors of two different haptic type toric intraocular lenses. METHODS A prospective, randomized, controlled trial. Cataract patients with preoperative corneal astigmatism of > 1 D were randomly implanted with C-loop haptic toric IOL (AcrySof-toric IOL) (group A) or plate-haptic toric IOL (AT TORBI 709 M IOL) (group B). The residual astigmatism, intraocular lens rotation, and visual quality were determined and compared between the two groups at 3 months after surgery. RESULTS Seventy-nine eyes were included in this study, including 40 eyes in the group A and 39 eyes in the group B. No significant difference in preoperative visual acuity, intraocular pressure, and ophthalmic biological parameters was found between the two groups. There was no significant difference in residual astigmatism between the two groups at 3 months after surgery (P > 0.05). The rotation degree in the group A was 3.85 ± 2.92°, the rotation degree in the group B was 2.33 ± 2.31°, and a significant difference in intraocular lens rotation was identified between the two groups (P < 0.05). Upon exploring the rotation-related factors of the two different haptic type toric intraocular lenses, the rotation after implanting C-loop haptic toric IOL was positively correlated with axial length (Pearson r = 0.522, P = 0.01) and corneal white-to-white distance (Pearson correlation analysis r = 0.356, P = 0.024). CONCLUSIONS The two different haptic type toric intraocular lenses effectively corrected regular corneal astigmatism and provided a good rotational stability after surgery. But the stability of plate-haptic toric IOL was better than that of C-loop haptic toric IOL. The rotational stability of C-loop haptic toric IOL was often related to axial length and corneal white-to-white distance.
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Affiliation(s)
- Jiajun Sun
- Department of Ophthalmology, Qingdao Eye Hospital of Shandong First Medical University, Qingdao, 266071, People's Republic of China
- State Key Laboratory Cultivation Base, Shandong Provincial Key Laboratory of Ophthalmology, Shandong Eye Institute, Shandong First Medical University & Shandong Academy of Medical Sciences, Qingdao, People's Republic of China
| | - Huiran Bai
- Department of Ophthalmology, Qingdao Eye Hospital of Shandong First Medical University, Qingdao, 266071, People's Republic of China
- State Key Laboratory Cultivation Base, Shandong Provincial Key Laboratory of Ophthalmology, Shandong Eye Institute, Shandong First Medical University & Shandong Academy of Medical Sciences, Qingdao, People's Republic of China
| | - Wei Cui
- Department of Ophthalmology, Qingdao Eye Hospital of Shandong First Medical University, Qingdao, 266071, People's Republic of China
- State Key Laboratory Cultivation Base, Shandong Provincial Key Laboratory of Ophthalmology, Shandong Eye Institute, Shandong First Medical University & Shandong Academy of Medical Sciences, Qingdao, People's Republic of China
| | - Xiaoming Wu
- Department of Ophthalmology, Qingdao Eye Hospital of Shandong First Medical University, Qingdao, 266071, People's Republic of China.
- State Key Laboratory Cultivation Base, Shandong Provincial Key Laboratory of Ophthalmology, Shandong Eye Institute, Shandong First Medical University & Shandong Academy of Medical Sciences, Qingdao, People's Republic of China.
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Rajabpour M, Kangari H, Pesudovs K, Khorrami-Nejad M, Rahmani S, Mohaghegh S, Moradnejad S. Refractive error and vision related quality of life. BMC Ophthalmol 2024; 24:83. [PMID: 38388340 PMCID: PMC10885569 DOI: 10.1186/s12886-024-03350-8] [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: 01/02/2023] [Accepted: 02/15/2024] [Indexed: 02/24/2024] Open
Abstract
BACKGROUND To investigate and compare the vision-related quality of life (QOL) in different types of refractive error (RE). METHODS This cross-sectional study was performed on 200 subjects, categorized into four groups of 50 each, consisting of subjects with myopia, hyperopia, astigmatism, and emmetropia, the latter being the control group. The mean age of the participants was 23.88 ± 5.87 (range, 15 to 38: 110 females and 90 males). RE was defined as myopia, spherical equivalent (SE) < -0.25 diopters (D), hyperopia, SE > + 0.25 D, astigmatism, cylinder < -0.25 D, and emmetropia (-0.25 ≤ SE(D) ≤ + 0.25, cylinder ≥ -0.25). Groups are subdivided into very low magnitudes of RE (0.50 and 0.75) and significant RE (1.00 ≤). Vision-related QOL was assessed using the Persian version of the 25-item National Eye Institute Visual Functioning Questionnaire (NEI-VFQ-25). The NEI-VFQ was scored as visual function and socioemotional scales using Rasch analysis. RESULTS Corrected myopia, astigmatism, uncorrected myopia, and hyperopia had a lower vision-related QOL than emmetropes. (P < 0.001). Vision-related QOL in myopic subjects was lower than that in astigmatic participants. Very low myopes, who often do not use correction, had a significantly lower QOL than other groups. CONCLUSION Individuals with refractive errors experience a lower QOL score than those without. Notably, the adverse impact on QOL score is significantly greater in myopic cases, particularly very low myopia, compared to other refractive errors. Therefore, it is strongly recommended not to neglect managing very low myopia since it may improve participants' QOL.
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Affiliation(s)
- Mojtaba Rajabpour
- Department of Optometry, Faculty of Rehabilitation, Shahid Beheshti University of Medical Sciences, Imam Hossein Square, Damavand Avenue, Opposite to Bouali Hospital, Tehran, 1616913111, Iran
| | - Haleh Kangari
- Department of Optometry, Faculty of Rehabilitation, Shahid Beheshti University of Medical Sciences, Imam Hossein Square, Damavand Avenue, Opposite to Bouali Hospital, Tehran, 1616913111, Iran.
| | - Konrad Pesudovs
- School of Optometry and Vision Science, Medicine & Health, University of New South Wales, Kensington, NSW, Australia
| | - Masoud Khorrami-Nejad
- Translational Ophthalmology Research Center, Farabi Eye Hospital, Tehran University of Medical Sciences, Tehran, Iran
- Optometry Department, School of Rehabilitation, Tehran University of Medical Sciences, Tehran, Iran
| | - Saeed Rahmani
- Department of Optometry, Faculty of Rehabilitation, Shahid Beheshti University of Medical Sciences, Imam Hossein Square, Damavand Avenue, Opposite to Bouali Hospital, Tehran, 1616913111, Iran
| | - Sahar Mohaghegh
- Department of Optometry, Faculty of Rehabilitation, Shahid Beheshti University of Medical Sciences, Imam Hossein Square, Damavand Avenue, Opposite to Bouali Hospital, Tehran, 1616913111, Iran
| | - Shima Moradnejad
- Department of Health Promotion and Education, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
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Kozlov Y, Kinori M, Armarnik S, Yahalomi T, Ekshtein A, Levian L, Mezad-Koursh D, Pikkel J, Ben-Ari O. Subjective versus objective refraction in healthy young adults. BMC Ophthalmol 2024; 24:79. [PMID: 38378511 PMCID: PMC10877844 DOI: 10.1186/s12886-024-03340-w] [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: 09/03/2023] [Accepted: 02/05/2024] [Indexed: 02/22/2024] Open
Abstract
PURPOSE To evaluate objective and subjective refraction differences in healthy young adults. METHODS Data concerning candidates for the Israeli Air Force Flight Academy, as well as active air force pilots in all stages of service who underwent a routine health checkup between the years 2018 and 2019 were retrospectively analyzed. Objective refraction measured using a single autorefractometer was compared with subjective refraction measured by an experienced military optometrist during the same visit. The results were converted to power vectors (spherical equivalent [SE], J0, and J45). To interpret astigmatism using power vector values, the cylinder power (Cp) was determined. RESULTS This study included 1,395 young adult participants. The average age was 22.17 years (range, 17-39, 84.8% males). The average SE was - 0.65 ± 1.19 diopter (D) compared with - 0.71 ± 0.91D in the auto- and subjective refraction, respectively (p = 0.001). Cp was 0.91 ± 0.52D and 0.67 ± 0.40D, respectively (p < 0.001). This difference was more common in older participants (p < 0.001). J0 and J45 value differences were not significant. The absolute SE value of subjective refraction was lower in the myopic (p < 0.001) and hyperopic (p < 0.001) patients. CONCLUSIONS Young hyperopic participants tended to prefer "less plus" in subjective refraction compared with autorefraction. Young myopic participants tended to prefer "less minus" in subjective refraction compared with autorefraction. All participants, but mainly older participants, preferred slightly "less Cp" than that measured using autorefraction; The astigmatic axis did not differ significantly between the methods.
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Affiliation(s)
- Yuval Kozlov
- Department of Military Medicine, Faculty of Medicine, The Hebrew University of Jerusalem, Jerusalem, Israel
- The Israeli Air Force Aeromedical Center, Tel Hashomer, Israel
| | - Michael Kinori
- Department of Ophthalmology, Assuta Ashdod Medical Center, Ashdod, Israel.
- Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel.
| | - Sharon Armarnik
- The Goldschleger Eye Institute, Sheba Medical Center, Tel Hashomer, Israel
| | - Tal Yahalomi
- Department of Ophthalmology, Assuta Ashdod Medical Center, Ashdod, Israel
- Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel
| | - Aya Ekshtein
- Department of Military Medicine, Faculty of Medicine, The Hebrew University of Jerusalem, Jerusalem, Israel
- The Israeli Air Force Aeromedical Center, Tel Hashomer, Israel
| | - Leora Levian
- The Israeli Air Force Aeromedical Center, Tel Hashomer, Israel
| | - Daphna Mezad-Koursh
- Department of Ophthalmology, Tel Aviv Medical Center, Tel Aviv, Israel
- The Adelson School of Medicine, Ariel University, Ariel, Israel
| | - Joseph Pikkel
- Department of Ophthalmology, Assuta Ashdod Medical Center, Ashdod, Israel
- Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel
| | - Oded Ben-Ari
- Department of Military Medicine, Faculty of Medicine, The Hebrew University of Jerusalem, Jerusalem, Israel
- The Israeli Air Force Aeromedical Center, Tel Hashomer, Israel
- The Adelson School of Medicine, Ariel University, Ariel, Israel
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Shi R, Ma D, Zeng Q, Hua Z, Shen W, Cai L, Yang J. Rotational stability of monofocal and diffractive multifocal toric intraocular lens with identical design and material: a propensity score based prospective comparative study. BMC Ophthalmol 2024; 24:72. [PMID: 38365667 PMCID: PMC10870427 DOI: 10.1186/s12886-024-03281-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2023] [Accepted: 01/03/2024] [Indexed: 02/18/2024] Open
Abstract
PURPOSE To compare the rotational stability of a monofocal and a diffractive multifocal toric intraocular lens(IOLs) with identical design and material. METHODS This prospective study enrolled patients who underwent plate-haptic toric IOL (AT TORBI 709 M and AT LISA 909 M) implantation. Propensity score matching (PSM) was performed to balance baseline factors. Follow-up examinations were conducted at 1 h, 1 day, 3 days, 1 week, 2 weeks, 1 month, and 3 months postoperatively. A linear mixed model of repeated measures was used to investigate the changes in IOL rotation over time. A 2-week timeframe was utilized to assess differences in IOL rotation between the two groups. RESULT After PSM, a total of 126 eyes were selected from each group for further analysis. Postoperatively, the time course of IOL rotation change in the two groups remained consistent, with the greatest rotation occurring between 1 h and 1 day postoperatively. At the 2-week postoperative mark, the monofocal toric IOL exhibited a higher degree of rotation compared to the multifocal toric IOL (5.40 ± 7.77° vs. 3.53 ± 3.54°, P = 0.015). In lens thickness(LT) ≥ 4.5 mm and white-to-white distance(WTW) ≥ 11.6 mm subgroups, the monofocal toric IOL rotated greater than the multifocal toric IOL (P = 0.026 and P = 0.011, respectively). CONCLUSION The diffractive multifocal toric IOL exhibits superior rotational stability compared to the monofocal toric IOL, especially in subgroups LT ≥ 4.5 mm and WTW ≥ 11.6 mm. Moreover, the time course of IOL rotation change is consistent for both, with the maximum rotation occurring between 1 h and 1 day postoperatively.
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Affiliation(s)
- Runhan Shi
- Department of Ophthalmology, Eye, Ear, Nose, and Throat Hospital, Fudan University, 83 Fenyang Rd, Shanghai, 200031, China
- Key NHC Laboratory of Myopia, Laboratory of Myopia, Fudan University, Chinese Academy of Medical Sciences, Shanghai, China
- Shanghai Key Laboratory of Visual Impairment and Restoration, Shanghai, China
- Zhongshan Hospital, Fudan University, Shanghai, China
| | - Dongmei Ma
- Department of Ophthalmology, Eye, Ear, Nose, and Throat Hospital, Fudan University, 83 Fenyang Rd, Shanghai, 200031, China
- Key NHC Laboratory of Myopia, Laboratory of Myopia, Fudan University, Chinese Academy of Medical Sciences, Shanghai, China
- Shanghai Key Laboratory of Visual Impairment and Restoration, Shanghai, China
| | - Qiulin Zeng
- Department of Ophthalmology, Shanghai Xinshijie Dongqu Eye Hospital, Shanghai, China
| | - Zhixiang Hua
- Department of Ophthalmology, Eye, Ear, Nose, and Throat Hospital, Fudan University, 83 Fenyang Rd, Shanghai, 200031, China
- Key NHC Laboratory of Myopia, Laboratory of Myopia, Fudan University, Chinese Academy of Medical Sciences, Shanghai, China
- Shanghai Key Laboratory of Visual Impairment and Restoration, Shanghai, China
| | - Wenqian Shen
- Department of Ophthalmology, Eye, Ear, Nose, and Throat Hospital, Fudan University, 83 Fenyang Rd, Shanghai, 200031, China
- Key NHC Laboratory of Myopia, Laboratory of Myopia, Fudan University, Chinese Academy of Medical Sciences, Shanghai, China
- Shanghai Key Laboratory of Visual Impairment and Restoration, Shanghai, China
| | - Lei Cai
- Department of Ophthalmology, Eye, Ear, Nose, and Throat Hospital, Fudan University, 83 Fenyang Rd, Shanghai, 200031, China
- Key NHC Laboratory of Myopia, Laboratory of Myopia, Fudan University, Chinese Academy of Medical Sciences, Shanghai, China
- Shanghai Key Laboratory of Visual Impairment and Restoration, Shanghai, China
| | - Jin Yang
- Department of Ophthalmology, Eye, Ear, Nose, and Throat Hospital, Fudan University, 83 Fenyang Rd, Shanghai, 200031, China.
- Key NHC Laboratory of Myopia, Laboratory of Myopia, Fudan University, Chinese Academy of Medical Sciences, Shanghai, China.
- Shanghai Key Laboratory of Visual Impairment and Restoration, Shanghai, China.
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19
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Paraskevopoulos K, Karakosta C, Feretzakis G, Liaskou M, Kafetsouli D, Kokolaki A, Droutsas K, Papakonstantinou D, Georgalas I. Corneal tomography changes following major (6 mm) medial rectus muscle recession: a prospective cohort study using Pentacam®. Strabismus 2024:1-9. [PMID: 38311603 DOI: 10.1080/09273972.2024.2311094] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2024]
Abstract
INTRODUCTION The aim of this study is to evaluate changes in corneal astigmatism, axial anterior corneal curvature, as well as changes in the anterior chamber depth and central corneal thickness, 2 months following the unilateral recession of medial rectus muscle in children. METHODS Thirty-three children with esotropia were prospectively evaluated following unilateral medial rectus muscle recession, using Pentacam®. Comparisons were made between the operated and fellow unoperated eyes, pre, and postoperatively. The assessment was made for changes in the radius of axial curvature on major meridians at 3 and 3.5 mm from the optical corneal center in the mid-peripheral zone. Astigmatism changes of the anterior and posterior corneal surface were calculated using vector analysis software (astigMATIC®). ANOVA model was used to examine the interaction between age or central corneal thickness and postoperative changes in anterior and posterior surface corneal astigmatism. RESULTS In the intervention group, changes in anterior and posterior corneal surface astigmatism were statistically significant, with a mean increase of 0.59Dx92 and 0.08Dx91, respectively. In the mid-peripheral corneal zone, there is an increase in the radius of anterior corneal axial curvature more evident nasally 3.5 mm from the corneal center on the horizontal meridian, with corresponding decrease superiorly and inferiorly at 3 and 3.5 mm from the corneal center on the vertical meridian. DISCUSSION The changes in total astigmatism of the operated eyes are mainly attributed to the anterior corneal surface. These changes are associated with flattening in the 180 meridian of the cornea, leading to a shift to "with-the-rule" astigmatism.
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Affiliation(s)
- Konstantinos Paraskevopoulos
- Department of Ophthalmology, Penteli General Hospital for Children, Athens
- First Ophthalmology Department, "G. Gennimatas" Hospital, National and Kapodistrian University of Athens,Athens, Greece
| | - Christina Karakosta
- Department of Ophthalmology, Penteli General Hospital for Children, Athens
- First Ophthalmology Department, "G. Gennimatas" Hospital, National and Kapodistrian University of Athens,Athens, Greece
| | | | - Maria Liaskou
- Department of Ophthalmology, Penteli General Hospital for Children, Athens
| | - Dimitra Kafetsouli
- Department of Hygiene and Epidemiology, University of Thessaly, Larissa, Greece
| | - Anna Kokolaki
- Department of Ophthalmology, Penteli General Hospital for Children, Athens
| | - Konstantinos Droutsas
- First Ophthalmology Department, "G. Gennimatas" Hospital, National and Kapodistrian University of Athens,Athens, Greece
| | - Dimitrios Papakonstantinou
- First Ophthalmology Department, "G. Gennimatas" Hospital, National and Kapodistrian University of Athens,Athens, Greece
| | - Ilias Georgalas
- First Ophthalmology Department, "G. Gennimatas" Hospital, National and Kapodistrian University of Athens,Athens, Greece
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20
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Lee CY, Shen JH, Chao CC, Lian IB, Huang JY, Yang SF, Chang CK. Topographic and surgical risk factors for high postoperative residual astigmatism after small incision lenticule extraction in patients with different degrees of myopia: a retrospective cohort study. BMC Ophthalmol 2024; 24:45. [PMID: 38287289 PMCID: PMC10826184 DOI: 10.1186/s12886-024-03296-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: 09/19/2023] [Accepted: 01/15/2024] [Indexed: 01/31/2024] Open
Abstract
BACKGROUND To evaluate the possible topographic and surgical risk factors for high postoperative residual astigmatism in patients who undergo small-incision lenticule extraction (SMILE) surgery and have different myopia degrees. METHODS A retrospective cohort study was conducted, and patients who underwent SMILE surgery were enrolled. A total of 80 and 150 eyes from 40 to 75 individuals, respectively, were selected as the low myopia and high myopia groups. The demographic data, visual acuity, refraction, topographic parameters and surgical settings were recorded. Multiple linear regression with interaction tests were performed to survey the risk factors for high postoperative residual astigmatism in each group. RESULTS Five (6.25%) and 9 (6.00%) eyes presented with high postoperative residual astigmatism in the low myopia and high myopia groups, respectively, but these differences were not significant (P = 0.569). A steep corneal curvature was correlated with a greater risk of high postoperative residual astigmatism in the low myopia group (P = 0.015), while a higher degree of cycloplegic cylinder power, steeper corneal curvature, greater topographic cylinder power, smaller optic zone and longer incision length were associated with a high rate of postoperative residual astigmatism in the high myopia group (all P < 0.05). In addition, the interaction effects of cycloplegic and topographic cylinder power and longer incision length on the incidence of high postoperative residual astigmatism development were more evident in the high myopia group than in the low myopia group (all P < 0.05). CONCLUSIONS A steep corneal curvature correlates with a high risk of high postoperative residual astigmatism after SMILE surgery, and a higher degree of cycloplegic and topographic cylinder and longer incision are associated with high postoperative residual astigmatism in individuals with high myopia.
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Affiliation(s)
- Chia-Yi Lee
- Institute of Medicine, Chung Shan Medical University, Taichung, Taiwan
- Nobel Eye Institute, No. 13-5, Gongyuan Rd., Zhongzheng Dist, 100008, Taipei, Taiwan
- Department of Ophthalmology, Jen-Ai Hospital Dali Branch, Taichung, Taiwan
| | - Jen-Hsiang Shen
- Nobel Eye Institute, No. 13-5, Gongyuan Rd., Zhongzheng Dist, 100008, Taipei, Taiwan
| | - Chen-Cheng Chao
- Nobel Eye Institute, No. 13-5, Gongyuan Rd., Zhongzheng Dist, 100008, Taipei, Taiwan
- Department of Optometry, Nursing, and Management, MacKay Junior College of Medicine, Taipei, Taiwan
| | - Ie-Bin Lian
- Institute of Statistical and Information Science, National Changhua University of Education, Changhua, Taiwan
| | - Jing-Yang Huang
- Department of Medical Research, Chung Shan Medical University Hospital, Taichung, Taiwan
| | - Shun-Fa Yang
- Institute of Medicine, Chung Shan Medical University, Taichung, Taiwan
- Department of Medical Research, Chung Shan Medical University Hospital, Taichung, Taiwan
| | - Chao-Kai Chang
- Nobel Eye Institute, No. 13-5, Gongyuan Rd., Zhongzheng Dist, 100008, Taipei, Taiwan.
- Department of Optometry, Da-Yeh University, Changhua, Taiwan.
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21
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Salvador-Roger R, Albarrán-Diego C, Garzón N, García-Montero M, Muñoz G, Micó V, Esteve-Taboada JJ. Revisiting Javal's rule: a fresh and improved power vector approach according to age. Graefes Arch Clin Exp Ophthalmol 2024; 262:249-260. [PMID: 37552315 PMCID: PMC10805827 DOI: 10.1007/s00417-023-06195-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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2023] [Revised: 07/19/2023] [Accepted: 07/30/2023] [Indexed: 08/09/2023] Open
Abstract
PURPOSE The scientific community has established Javal's rule as a model linking refractive (RA) and keratometric (KA) astigmatism since its appearance more than 100 years ago. The aim was to improve the accuracy of this relationship according to subject's age by applying the power vector analysis. Posterior corneal curvature has also been studied. METHODS The IOLMaster 700 optical biometer was used to measure the corneal thickness and the radius of curvature of the anterior and posterior corneal surfaces. Refractive error was determined by a non-cycloplegic subjective refraction process with trial lenses. Linear regression analyses were applied using J0 and J45 power vector components. An evaluation was carried out according to the subject's age resulting into eight regression relationships for each astigmatic vector component for each relationship. RESULTS A total of 2254 right eyes from 2254 healthy subjects were evaluated. A trend towards against-the-rule astigmatism (ATR) was found with aging, both for refractive astigmatism (RA) and keratometric astigmatism (KA), with 95.2% of subjects under 20 years old having with-the-rule (WTR) KA, and only 22.8% above 79 years old. The following regression equations were found between RA and KA: [Formula: see text] = 0.73 × [Formula: see text] - 0.18 (R = 0.78) and [Formula: see text] = 0.70 × [Formula: see text] + 0.04 (R = 0.69) and between RA and total corneal astigmatism (TCA): [Formula: see text] = 0.73 × [Formula: see text] + 0.13 (R=0.78) and [Formula: see text] = 0.70 × [Formula: see text] - 0.06 (R = 0.68) for the whole sample, but with sensible differences among age groups, both in the slope and in the intercept. CONCLUSION Ignoring the age of the subject when using Javal's rule could lead to an error in the final cylinder calculation that would increase in high astigmatisms. Applying this new power vector approach based on subject's age could improve the accuracy of the astigmatism prediction.
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Affiliation(s)
- Raquel Salvador-Roger
- Department of Optics and Optometry and Vision Sciences, University of Valencia, 46100, Burjassot, Valencia, Spain.
| | - César Albarrán-Diego
- Department of Optics and Optometry and Vision Sciences, University of Valencia, 46100, Burjassot, Valencia, Spain
| | - Nuria Garzón
- Department of Optometry and Vision, Universidad Complutense de Madrid, 28037, Madrid, Spain
| | - María García-Montero
- Department of Optometry and Vision, Universidad Complutense de Madrid, 28037, Madrid, Spain
| | - Gonzalo Muñoz
- Marqués de Sotelo Ophthalmological Clinic, 46002, Valencia,, Spain
- Baviera Castellón Ophthalmological Clinic, 12003, Castelló de la Plana, Spain
| | - Vicente Micó
- Department of Optics and Optometry and Vision Sciences, University of Valencia, 46100, Burjassot, Valencia, Spain
| | - José J Esteve-Taboada
- Department of Optics and Optometry and Vision Sciences, University of Valencia, 46100, Burjassot, Valencia, Spain
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Tachikawa T, Ueno R, Mita T, Yuzurihara D, Noda T. Corneal refractive error and astigmatism in patients aged 6 to 18 years with a history of retinopathy of prematurity and birth weight of <1500 g. Jpn J Ophthalmol 2024; 68:42-49. [PMID: 38001368 DOI: 10.1007/s10384-023-01026-2] [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: 03/14/2023] [Accepted: 09/05/2023] [Indexed: 11/26/2023]
Abstract
PURPOSE To investigate corneal refractive power (CR) and astigmatism (AS) in 6- to 18-year-old children with a history of retinopathy of prematurity (ROP) and birth weight of <1500 g who either did or did not undergo retinal photocoagulation (PC). STUDY DESIGN Retrospective study. METHODS We examined 143 eyes of 77 children in 2021. The children were divided into three groups for evaluation of CR and AS: those with a birth weight of ≥2500 g (normal birth weight [NBW] group, 13 eyes) as controls, those with spontaneously resolved ROP (sr-ROP group, 27 eyes), and those who underwent PC for treatment of ROP (PC-ROP group, 103 eyes). Swept-source anterior segment optical coherence tomography was used to analyze the cornea. RESULTS The median CR in the NBW, sr-ROP, and PC-ROP groups was 42.2 (41.3, 42.8) diopters (D), 44.5 (43.2, 45.5) D, and 45.2 (43.8, 46.6) D, respectively. The median AS in the NBW, sr-ROP, and PC-ROP groups was 1.2 (1.0, 1.5) D, 1.1 (0.8, 1.6) D, and 2.1 (1.4, 2.7) D. In the PC-ROP group, the with-the-rule astigmatic axis was 97%. In all three groups, a strong positive correlation was found between the mean anterior and posterior CR (NBW: r=0.795, sr-ROP: r=0.842, PC-ROP: r=0.890) and AS (NBW: r=0.883, sr-ROP: r=0.841, PC-ROP: r=0.860). CONCLUSION CR was significantly higher in the sr-ROP (p=0.013) and PC-ROP (p<0.001) groups than in the NBW group. The PC-ROP group had significantly more AS than the sr-ROP group. There was a strong correlation between the anterior and posterior CR and AS.
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Affiliation(s)
- Takako Tachikawa
- Department of Ophthalmology, Tokyo Metropolitan Ohtsuka Hospital, Minami-Ohtsuka 2-8-1, Toshima-ku, Tokyo, 170-8476, Japan.
| | - Ritsuko Ueno
- Department of Ophthalmology, Tokyo Metropolitan Ohtsuka Hospital, Minami-Ohtsuka 2-8-1, Toshima-ku, Tokyo, 170-8476, Japan
| | - Tetsuko Mita
- Department of Ophthalmology, Tokyo Metropolitan Ohtsuka Hospital, Minami-Ohtsuka 2-8-1, Toshima-ku, Tokyo, 170-8476, Japan
| | - Daisuke Yuzurihara
- Department of Ophthalmology, Tokyo Metropolitan Ohtsuka Hospital, Minami-Ohtsuka 2-8-1, Toshima-ku, Tokyo, 170-8476, Japan
| | - Toru Noda
- Department of Ophthalmology, NHO Tokyo Medical Center, Tokyo, Japan
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23
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Mohan S, Mohan M, Mohan S. Ocular nodular fasciitis in Kawasaki disease. Oman J Ophthalmol 2024; 17:143-144. [PMID: 38524347 PMCID: PMC10957033 DOI: 10.4103/ojo.ojo_244_22] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2022] [Revised: 11/27/2023] [Accepted: 01/02/2024] [Indexed: 03/26/2024] Open
Affiliation(s)
- Sashwanthi Mohan
- Department of Cornea, Rajan Eye Care Hospital, Chennai, Tamil Nadu, India
| | - Madhuvanthi Mohan
- Department of Cornea, Rajan Eye Care Hospital, Chennai, Tamil Nadu, India
| | - Sujatha Mohan
- Department of Cornea, Rajan Eye Care Hospital, Chennai, Tamil Nadu, India
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24
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Mukhija R, Fonseca A, Borkum S, Frattaroli P, Barbon E, Nanavaty MA. Toric Intraocular Lens versus Peripheral Corneal Relaxing Incisions for Astigmatism between 0.75 and 2.5 Diopters: 5-Years Outcomes. Curr Eye Res 2024; 49:46-52. [PMID: 37789513 DOI: 10.1080/02713683.2023.2260961] [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: 06/20/2023] [Accepted: 09/14/2023] [Indexed: 10/05/2023]
Abstract
PURPOSE To compare 5-year outcomes of toric intraocular lens (tIOL) or peripheral corneal relaxing incision (PCRI) for correction of keratometric astigmatism (KA) between 0.75 and 2.5 diopters (D). METHODS Setting: University Hospital. Design: Randomized clinical trial. Eighty eyes (80 participants) received either tIOL or PCRI. Patients were assessed preoperatively, 1-month, 1, and 5 years. Primary outcomes were uncorrected (UDVA) and best-corrected distance logMAR visual acuity (CDVA). Secondary outcomes were a manifest refractive sphere, refractive astigmatism (Ra), spherical equivalent (SEQ), KA & mean keratometry (KM), and Quality-of-Life Impact of Refractive Correction (QIRC) scores. RESULTS There was no difference between the two groups in UDVA, CDVA, refractive sphere, KM, RA, and SEQ. KA reduced after 1 month in the PCRI group and remained stable until 5 years. From 1 to 5 years, the number of eyes with distance emmetropia (within ±0.13D) changed from 59% (20/34 eyes) to 32% (6/19 eyes) for tIOLs and from 43% (15/36 eyes) to 20% (4/21 eyes) for PCRIs with 32% (6/19 eyes) and 20% (4/21 eyes) showing >0.5D change in SEQ at 5-years respectively. Compared to 1-year, Ra significantly increased at 5 years in both groups with no difference between the groups. Mean overall QIRC scores were not different between the groups (tIOL: 49.88 ± 7.47; PCRI: 52.09 ± 7.02; p = .18). CONCLUSIONS Although there was no difference between the overall visual and vision-related quality of life outcomes between tIOLs and PCRIs, an increase in refractive astigmatism and reduction in distance emmetropia with time was noted in both groups.
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Affiliation(s)
- Ritika Mukhija
- Sussex Eye Hospital, University Hospitals Sussex NHS Foundation Trust, Brighton, UK
| | - Aneesha Fonseca
- Sussex Eye Hospital, University Hospitals Sussex NHS Foundation Trust, Brighton, UK
| | - Steven Borkum
- Sussex Eye Hospital, University Hospitals Sussex NHS Foundation Trust, Brighton, UK
| | - Paul Frattaroli
- Sussex Eye Hospital, University Hospitals Sussex NHS Foundation Trust, Brighton, UK
| | - Emma Barbon
- Sussex Eye Hospital, University Hospitals Sussex NHS Foundation Trust, Brighton, UK
| | - Mayank A Nanavaty
- Sussex Eye Hospital, University Hospitals Sussex NHS Foundation Trust, Brighton, UK
- Brighton & Sussex Medical School, University of Sussex, Falmer, Brighton, UK
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Gong W, Wang J, Zhang B, Xu X, Zou H, Liu K, Xu X, He X, Huang J. Cylinder power progression associated with axial length in young children: a two-year follow-up study. Graefes Arch Clin Exp Ophthalmol 2024; 262:295-303. [PMID: 37410179 PMCID: PMC10806115 DOI: 10.1007/s00417-023-06149-3] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2022] [Revised: 05/06/2023] [Accepted: 06/12/2023] [Indexed: 07/07/2023] Open
Abstract
PURPOSE To describe the association of refraction development and axial length (AL) in young children and provide new insights into the progression of cylinder power. METHODS Children (2-3 grades) were enrolled from primary schools in Shanghai and followed up for two years. Cycloplegic refraction, AL, and corneal curvature radius were measured. Refraction parameters were compared among groups with different AL, AL1 (AL < 23.5 mm), AL2 (23.5 mm ≤ AL < 24.5 mm), and AL3 (AL ≥ 24.5 mm). Multiple regression analysis was used to explore risk factors of diopter of cylinder (DC) progression. RESULTS In total, out of 6891 enrolled children, 5961 participants (7-11 yrs) were included in the final analysis. Over the two-year period, the cylinder power significantly changed, and those with longer AL had more rapid DC progression over the two years (AL1, -0.09 ± 0.35 D; AL2, -0.15 ± 0.39 D; AL3, -0.29 ± 0.44 D) (P < 0.001). The change in DC was independently associated with AL at baseline (P < 0.001). The proportion of with-the-rule astigmatism increased from 91.3% to 92.1% in AL1 group, from 89.1% to 91.8% in AL2 group and from 87.1% to 92.0% in AL3 group. CONCLUSIONS Young children with long AL experienced rapid progression of cylinder power. Both the control of myopia progression and attention to the correction of astigmatism are necessary in the health management of children with long AL. The significantly increased AL in participants might contribute to both the extent and direction of astigmatism.
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Affiliation(s)
- Wei Gong
- Department of Clinical Research, Shanghai Eye Disease Prevention and Treatment Center, Shanghai Eye Hospital, Shanghai Vision Health Center & Shanghai Children Myopia Institute, Shanghai, China
- Department of Ophthalmology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, National Clinical Research Center for Eye Diseases, Center of Eye Shanghai Key Laboratory of Ocular Fundus Diseases, Shanghai Engineering Center for Visual Science and Photomedicine, Shanghai, China
| | - Jingjing Wang
- Department of Clinical Research, Shanghai Eye Disease Prevention and Treatment Center, Shanghai Eye Hospital, Shanghai Vision Health Center & Shanghai Children Myopia Institute, Shanghai, China
| | - Bo Zhang
- Department of Clinical Research, Shanghai Eye Disease Prevention and Treatment Center, Shanghai Eye Hospital, Shanghai Vision Health Center & Shanghai Children Myopia Institute, Shanghai, China
| | - Xian Xu
- Department of Ophthalmology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, National Clinical Research Center for Eye Diseases, Center of Eye Shanghai Key Laboratory of Ocular Fundus Diseases, Shanghai Engineering Center for Visual Science and Photomedicine, Shanghai, China
| | - Haidong Zou
- Department of Clinical Research, Shanghai Eye Disease Prevention and Treatment Center, Shanghai Eye Hospital, Shanghai Vision Health Center & Shanghai Children Myopia Institute, Shanghai, China
- Department of Ophthalmology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, National Clinical Research Center for Eye Diseases, Center of Eye Shanghai Key Laboratory of Ocular Fundus Diseases, Shanghai Engineering Center for Visual Science and Photomedicine, Shanghai, China
| | - Kun Liu
- Department of Ophthalmology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, National Clinical Research Center for Eye Diseases, Center of Eye Shanghai Key Laboratory of Ocular Fundus Diseases, Shanghai Engineering Center for Visual Science and Photomedicine, Shanghai, China
| | - Xun Xu
- Department of Clinical Research, Shanghai Eye Disease Prevention and Treatment Center, Shanghai Eye Hospital, Shanghai Vision Health Center & Shanghai Children Myopia Institute, Shanghai, China
- Department of Ophthalmology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, National Clinical Research Center for Eye Diseases, Center of Eye Shanghai Key Laboratory of Ocular Fundus Diseases, Shanghai Engineering Center for Visual Science and Photomedicine, Shanghai, China
| | - Xiangui He
- Department of Clinical Research, Shanghai Eye Disease Prevention and Treatment Center, Shanghai Eye Hospital, Shanghai Vision Health Center & Shanghai Children Myopia Institute, Shanghai, China.
- Department of Ophthalmology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, National Clinical Research Center for Eye Diseases, Center of Eye Shanghai Key Laboratory of Ocular Fundus Diseases, Shanghai Engineering Center for Visual Science and Photomedicine, Shanghai, China.
| | - Jiannan Huang
- Department of Clinical Research, Shanghai Eye Disease Prevention and Treatment Center, Shanghai Eye Hospital, Shanghai Vision Health Center & Shanghai Children Myopia Institute, Shanghai, China.
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Shen J, Ma D, Cai L, Zhang L, Guo H, Yang J. Comparison of visual outcomes in adult patients with different types of developmental cataracts after toric multifocal intraocular lenses implantation. Graefes Arch Clin Exp Ophthalmol 2023; 261:3521-3530. [PMID: 37382611 PMCID: PMC10667390 DOI: 10.1007/s00417-023-06148-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2022] [Revised: 06/09/2023] [Accepted: 06/13/2023] [Indexed: 06/30/2023] Open
Abstract
PURPOSE To analyze and compare the visual performance and patient satisfaction following the implantation of toric multifocal intraocular lenses (TMIOLs) in adult patients with different types of developmental cataracts (DC) accompanied by corneal astigmatism (CA). METHODS This is a prospective observational cohort study. Patients diagnosed with DC aged 18-30 years were divided into three groups according to the anatomic location of the lens opacity: cortical, nuclear, and posterior subcapsular (PSC) groups, and implanted with TMIOLs. Visual acuity (VA), postoperative refractive astigmatism (RA), intraocular lens (IOL) rotation, high-order aberrations (HOAs), modulation transfer function (MTF) curve, and Strehl ratio were compared. The functional vision and incidence of photic phenomena were surveyed using questionnaires. RESULTS Fifty-five eyes of 37 patients were enrolled and completed a 1-year follow-up. The mean CA was 2.06 ± 0.79 D preoperatively, and the mean RA was 0.29 ± 0.30 D 3-month postoperatively. The IOL rotation was 2.48° ± 1.89°, with no deviation > 10°. At 12 months, mean uncorrected distance VA improved from 0.93 ± 0.41 preoperatively to 0.08 ± 0.08 logarithm of the minimum angle of resolution (logMAR), mean uncorrected near VA increased from 0.45 ± 0.30 preoperatively to 0.12 ± 0.11 logMAR, and mean uncorrected intermediate VA was 0.14 ± 0.08 logMAR. The cortical and nuclear groups displayed better improvements in uncorrected near and intermediate VA than that in the PSC group. Similar results were observed in the 3-month defocus curves, HOAs, MTF curve, halo incidence, and near vision satisfaction. CONCLUSION In adult patients with DC accompanied by CA, TMIOLs implantation achieved good postoperative visual outcomes and significantly reduced glasses dependency. Patients with cortical or nuclear lens opacity showed better whole-course VA and quality of vision, while patients with PSC opacity showed unsatisfactory near vision and suffered more photic phenomena.
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Affiliation(s)
- Jiying Shen
- Department of Ophthalmology, Shanghai Heping Eye Hospital, Shanghai, China
| | - Dongmei Ma
- Department of Ophthalmology and the Eye Institute, Eye and Ear, Nose, and Throat Hospital, Fudan University, Shanghai, China
- The Key Laboratory of Myopia, Ministry of Health, Shanghai, China
- Shanghai Key Laboratory of Visual Impairment and Restoration, Shanghai, China
- Key National Health Committee of the Key Laboratory of Myopia, Fudan University, Shanghai, China
- The Key Laboratory of Myopia, Chinese Academy of Medical Sciences, Shanghai, China
| | - Lei Cai
- Department of Ophthalmology and the Eye Institute, Eye and Ear, Nose, and Throat Hospital, Fudan University, Shanghai, China
- The Key Laboratory of Myopia, Ministry of Health, Shanghai, China
- Shanghai Key Laboratory of Visual Impairment and Restoration, Shanghai, China
- Key National Health Committee of the Key Laboratory of Myopia, Fudan University, Shanghai, China
- The Key Laboratory of Myopia, Chinese Academy of Medical Sciences, Shanghai, China
| | - Limei Zhang
- Department of Ophthalmology, Shanghai Heping Eye Hospital, Shanghai, China
| | - Haike Guo
- Department of Ophthalmology, Shanghai Heping Eye Hospital, Shanghai, China
| | - Jin Yang
- Department of Ophthalmology and the Eye Institute, Eye and Ear, Nose, and Throat Hospital, Fudan University, Shanghai, China.
- The Key Laboratory of Myopia, Ministry of Health, Shanghai, China.
- Shanghai Key Laboratory of Visual Impairment and Restoration, Shanghai, China.
- Key National Health Committee of the Key Laboratory of Myopia, Fudan University, Shanghai, China.
- The Key Laboratory of Myopia, Chinese Academy of Medical Sciences, Shanghai, China.
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Acar Eser N, Serbest Ceylanoglu K, Sen E. Influence of Upper Eyelid Surgeries on Corneal Morphology Detected with Pentacam. Aesthetic Plast Surg 2023; 47:2432-2439. [PMID: 37097452 DOI: 10.1007/s00266-023-03366-3] [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: 03/01/2023] [Accepted: 04/08/2023] [Indexed: 04/26/2023]
Abstract
PURPOSE To analyze the corneal morphological parameters before and one month after the upper eyelid (UE) blepharoplasty and external levator resection (ELR) for ptosis surgery. MATERIALS AND METHODS Seventy eyes of 70 patients with dermatochalasis (50 eyes) and acquired aponeurotic ptosis (AAP) (20 eyes) included in this prospective study. Detailed ophthalmologic examination was performed including the best corrected visual acuity (BCVA), slit lamp examination and dilated fundoscopy. Measurements were made before and one month after the surgeries using Pentacam. Central corneal thickness (CCT), pupil center pachymetry (PCP) and thinnest pachymetry (TP), cornea front astigmatism (AST), flat keratometry (K1), steep keratometry (K2) and mean keratometry (Km) values were evaluated. RESULTS Higher postoperative Km measurements were observed in dermatochalasis (p = 0.038) patients. Postoperative AST values were significantly lower in both dermatochalasis and ptosis cases (p = 0.034, p = 0.003, respectively). Increased PCP and TP were found in the AAP patients (p = 0.014, p = 0.015, respectively). DISCUSSION UE blepharoplasty and ELR surgeries both lead to some significant changes on corneal structure post-operatively. LEVEL OF EVIDENCE IV This journal requires that authors assign a level of evidence to each article. For a full description of these Evidence-Based Medicine ratings, please refer to the Table of Contents or the online Instructions to Authors www.springer.com/00266 .
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Affiliation(s)
- Nazan Acar Eser
- University of Health Sciences, Ulucanlar Eye Education and Research Hospital, Altındağ, 06250, Ankara, Turkey.
| | - Kubra Serbest Ceylanoglu
- University of Health Sciences, Ulucanlar Eye Education and Research Hospital, Altındağ, 06250, Ankara, Turkey
| | - Emine Sen
- Ankara Etlik City Hospital, Ankara, Turkey
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Ohashi T, Fujiya A, Yoshida M, Kojima T. Simple Technique for Stabilizing Toric Intraocular Lens during Removal of Ophthalmic Viscosurgical Device. Ophthalmic Res 2023; 66:1402-1405. [PMID: 38016429 DOI: 10.1159/000535526] [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: 02/24/2023] [Accepted: 11/20/2023] [Indexed: 11/30/2023]
Abstract
INTRODUCTION The aim of this study was to describe a simple technique for the implantation of toric intraocular lenses (IOLs) with increased stability during ophthalmic viscosurgical device (OVD) removal. METHODS The technique was performed on 20 eyes with 20 patients (mean age: 77.9 ± 9.21 years). The patients had cataract surgery with implantation of a single-piece, acrylic IOL (AcrySof Toric IOL, SN6A; Alcon Laboratories, Inc.). The intraoperative IOL rotation during OVD removal, rotational error of toric IOL axis at 30 min and 24 h after surgery, and mean preoperative and postoperative IOP were evaluated. Images were captured before and after removal of OVD from surgical video, and used to evaluate intraoperative IOL rotation. RESULTS The mean amount of IOL rotation during OVD removal with the current technique was 0.88 ± 0.93°, which was less than the 10.25 ± 5.50° previously reported for the conventional technique. The rotational error of toric IOL axis at 30 min and 24 h were 3.90 ± 3.71 and 3.05 ± 3.22°, respectively. The mean preoperative IOP and postoperative IOP were 13.84 ± 2.39 and 14.15 ± 4.68 mm Hg, respectively. CONCLUSIONS With the current technique, the toric IOL is stable during OVD removal and repositioning of the IOL during surgery is less likely to be required.
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Zhang L, Zeng L, Ye Y, Zhang Z, Liu F, Xian Y, Shen Y, Sun L, Xu Y, Zheng K, Zhou X, Zhao J. Refractive and corneal astigmatism in Chinese 4-15 years old children: prevalence and risk factors. BMC Ophthalmol 2023; 23:449. [PMID: 37950161 PMCID: PMC10638796 DOI: 10.1186/s12886-023-03201-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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2023] [Accepted: 11/06/2023] [Indexed: 11/12/2023] Open
Abstract
BACKGROUND To investigate the prevalence and risk factors of refractive astigmatism (RA) and corneal astigmatism (CA) in preschool children and school-aged children in Shanghai, China. METHODS In this school-based, cross-sectional study, 4-15 years old children across three learning stages of kindergarten, primary school, and junior high school underwent noncycloplegic autorefraction and completed comprehensive questionnaires involving time spent on daily homework and outdoor activities. Data from the right eyes were analysed. RESULTS Overall, 7084 children (mean ± standard deviation (SD) of age: 8.08 ± 3.11 years) were included, and the prevalence rates of RA/CA ( ≤ - 1.0 D) in children were 15.8%/64% in kindergartens, 16.5%/65% in primary schools, and 32.8%/76.9% in junior high schools. The magnitude and prevalence of RA and CA all increased with age or with learning stage (all P < 0.001). The presence of RA was associated with more myopic spherical power (odds ratio (OR) 0.956, P = 0.021), junior high school (OR 1.973, P < 0.001), longer homework time on weekdays (OR 1.074, P = 0.029), and shorter outdoor activity time on weekends (odds ratio 0.929, P = 0.013). CONCLUSION In the wide age range of 4 to 15 years, the magnitude and prevalence of RA and CA increased with the learning stage, and these increases mainly began at the primary school stage. Factors, including longer homework time and shorter outdoor time were correlated with the presence of RA.
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Affiliation(s)
- Luoli Zhang
- Department of Ophthalmology, Eye and ENT Hospital of Fudan University, 200031, Shanghai, China
- National Health Commission Key Lab of Myopia (Fudan University), 200031, Shanghai, China
- Shanghai Research Center of Ophthalmology and Optometry, 200031, Shanghai, China
- Shanghai Engineering Research Center of Laser and Autostereoscopic 3D for Vision Care, 200031, Shanghai, China
| | - Li Zeng
- Department of Ophthalmology, Eye and ENT Hospital of Fudan University, 200031, Shanghai, China
- National Health Commission Key Lab of Myopia (Fudan University), 200031, Shanghai, China
- Shanghai Research Center of Ophthalmology and Optometry, 200031, Shanghai, China
- Shanghai Engineering Research Center of Laser and Autostereoscopic 3D for Vision Care, 200031, Shanghai, China
| | - Yuhao Ye
- Department of Ophthalmology, Eye and ENT Hospital of Fudan University, 200031, Shanghai, China
- National Health Commission Key Lab of Myopia (Fudan University), 200031, Shanghai, China
- Shanghai Research Center of Ophthalmology and Optometry, 200031, Shanghai, China
- Shanghai Engineering Research Center of Laser and Autostereoscopic 3D for Vision Care, 200031, Shanghai, China
| | - Zhe Zhang
- Department of Ophthalmology, Eye and ENT Hospital of Fudan University, 200031, Shanghai, China
- National Health Commission Key Lab of Myopia (Fudan University), 200031, Shanghai, China
- Shanghai Research Center of Ophthalmology and Optometry, 200031, Shanghai, China
- Shanghai Engineering Research Center of Laser and Autostereoscopic 3D for Vision Care, 200031, Shanghai, China
| | - Fang Liu
- Department of Ophthalmology, Eye and ENT Hospital of Fudan University, 200031, Shanghai, China
- National Health Commission Key Lab of Myopia (Fudan University), 200031, Shanghai, China
- Shanghai Research Center of Ophthalmology and Optometry, 200031, Shanghai, China
- Shanghai Engineering Research Center of Laser and Autostereoscopic 3D for Vision Care, 200031, Shanghai, China
| | - Yiyong Xian
- Department of Ophthalmology, Eye and ENT Hospital of Fudan University, 200031, Shanghai, China
- National Health Commission Key Lab of Myopia (Fudan University), 200031, Shanghai, China
- Shanghai Research Center of Ophthalmology and Optometry, 200031, Shanghai, China
- Shanghai Engineering Research Center of Laser and Autostereoscopic 3D for Vision Care, 200031, Shanghai, China
| | - Yang Shen
- Department of Ophthalmology, Eye and ENT Hospital of Fudan University, 200031, Shanghai, China
- National Health Commission Key Lab of Myopia (Fudan University), 200031, Shanghai, China
- Shanghai Research Center of Ophthalmology and Optometry, 200031, Shanghai, China
- Shanghai Engineering Research Center of Laser and Autostereoscopic 3D for Vision Care, 200031, Shanghai, China
| | - Ling Sun
- Department of Ophthalmology, Eye and ENT Hospital of Fudan University, 200031, Shanghai, China
- National Health Commission Key Lab of Myopia (Fudan University), 200031, Shanghai, China
- Shanghai Research Center of Ophthalmology and Optometry, 200031, Shanghai, China
- Shanghai Engineering Research Center of Laser and Autostereoscopic 3D for Vision Care, 200031, Shanghai, China
| | - Ye Xu
- Department of Ophthalmology, Eye and ENT Hospital of Fudan University, 200031, Shanghai, China
- National Health Commission Key Lab of Myopia (Fudan University), 200031, Shanghai, China
- Shanghai Research Center of Ophthalmology and Optometry, 200031, Shanghai, China
- Shanghai Engineering Research Center of Laser and Autostereoscopic 3D for Vision Care, 200031, Shanghai, China
| | - Ke Zheng
- Department of Ophthalmology, Eye and ENT Hospital of Fudan University, 200031, Shanghai, China
- National Health Commission Key Lab of Myopia (Fudan University), 200031, Shanghai, China
- Shanghai Research Center of Ophthalmology and Optometry, 200031, Shanghai, China
- Shanghai Engineering Research Center of Laser and Autostereoscopic 3D for Vision Care, 200031, Shanghai, China
| | - Xingtao Zhou
- Department of Ophthalmology, Eye and ENT Hospital of Fudan University, 200031, Shanghai, China.
- National Health Commission Key Lab of Myopia (Fudan University), 200031, Shanghai, China.
- Shanghai Research Center of Ophthalmology and Optometry, 200031, Shanghai, China.
- Shanghai Engineering Research Center of Laser and Autostereoscopic 3D for Vision Care, 200031, Shanghai, China.
| | - Jing Zhao
- Department of Ophthalmology, Eye and ENT Hospital of Fudan University, 200031, Shanghai, China.
- National Health Commission Key Lab of Myopia (Fudan University), 200031, Shanghai, China.
- Shanghai Research Center of Ophthalmology and Optometry, 200031, Shanghai, China.
- Shanghai Engineering Research Center of Laser and Autostereoscopic 3D for Vision Care, 200031, Shanghai, China.
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Hashemi H, Asgari S, Khabazkhoob M, Heidari Z. Vector analysis of astigmatism correction after PRK, FS-LASIK, and SMILE for myopic astigmatism. Int Ophthalmol 2023; 43:3999-4009. [PMID: 37405568 DOI: 10.1007/s10792-023-02804-0] [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: 12/02/2022] [Accepted: 06/26/2023] [Indexed: 07/06/2023]
Abstract
PURPOSE To compare astigmatic correction among photorefractive keratectomy (PRK), femtosecond laser-assisted in situ keratomileusis (FS-LASIK), and small-incision lenticule extraction (SMILE). METHODS This prospective study enrolled 157 eyes that underwent three procedures (59 PRK, 47 FS-LASIK, and 51 SMILE) for the treatment of myopia with low to high astigmatism (- 0.25 to - 4.50 D). Ocular residual astigmatism (ORA) was calculated by vector analysis using refractive (RA) and corneal astigmatism. Vector analysis results were compared in different procedures in the two RA groups (low ≤ 1.00 D and high > 1.00 D) at 3 and 12 months postoperatively. RESULTS There were no significant between-group differences in postoperative safety and efficacy outcomes (all P > 0.05). No significant differences were found in postoperative cylinders between all surgical groups (all p > 0.05), except for 3 months postoperative ORA in FS-LASIK (P = 0.004). At 12 months, 77%, 59.2%, and 50% of eyes attain emmetropia in the FS-LASIK, SMILE, and PRK groups, respectively. Vector analysis showed comparable values for surgical induced astigmatism, target induced astigmatism, mean error, and angle of error between groups at 12 months. Significant differences were observed only in the correction index and difference vector parameters in the astigmatic > 1.00 D group at 3 months (P < 0.001), and FS-LASIK was preferable. CONCLUSIONS One-year outcomes revealed that PRK, FS-LASIK, and SMILE were all equally effective in correcting myopic astigmatism. However, FS-LASIK demonstrated more favorable astigmatism correction in eyes with astigmatism > 1.00D in early postoperatively.
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Affiliation(s)
- Hassan Hashemi
- Noor Research Center for Ophthalmic Epidemiology, Noor Eye Hospital, Tehran, Iran
| | - Soheila Asgari
- Noor Ophthalmology Research Center, Noor Eye Hospital, Tehran, Iran
| | - Mehdi Khabazkhoob
- Department of Psychiatric Nursing and Management, School of Nursing and Midwifery, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Zahra Heidari
- Department of Ophthalmology, Bu-Ali Sina Hospital, Mazandaran University of Medical Sciences, Sari, Iran; Psychiatry and Behavioral Sciences Research Center, Mazandaran University of Medical Sciences, Sari, Iran.
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Ahmet S, Kırgız A, Öndeş Yılmaz F, Çubuk MÖ, Kandemir Beşek N. Epithelial Inoculation After Small-Incision Lenticule Extraction (SMILE): A Case Report. Turk J Ophthalmol 2023; 53:313-317. [PMID: 37870044 PMCID: PMC10599335 DOI: 10.4274/tjo.galenos.2023.14825] [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: 10/02/2022] [Accepted: 05/06/2023] [Indexed: 10/24/2023] Open
Abstract
Epithelial ingrowth is a rare condition that is generally seen after laser in situ keratomileusis (LASIK) and has been reported in the literature in a small number of cases after small-incision lenticule extraction (SMILE) surgery. "Epithelial inoculation" should also be considered in patients presenting with decreased vision and an appearance similar to epithelial ingrowth in the early period after SMILE surgery. A 23-year-old woman presented to our clinic with a request for refractive surgery. Her manifest refractions were -7.50 -1.00 x 180° in the right eye and -7.25 -1.00 x 150° in the left eye, and best corrected distance visual acuity was 10/10 in both eyes. The SMILE procedure was performed with the Visumax femtosecond laser (Carl Zeiss Meditec AG). Slit-lamp examination at postoperative 1 week revealed a small grayish-white intrastromal opacity resembling epithelial ingrowth in the central optic axis of the right eye. Irrigation of the interface was performed with balanced salt solution using an irrigation cannula and the epithelial cluster was removed. The patient remained clinically stable 6 months after surgery and has experienced no recurrence. When epithelial inoculation is observed early after SMILE surgery, immediate irrigation of the interface appears to be an effective and safe treatment.
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Affiliation(s)
- Sibel Ahmet
- University of Health Sciences Türkiye, Beyoğlu Eye Training and Research Hospital, Clinic of Ophthalmology, İstanbul, Türkiye
| | - Ahmet Kırgız
- University of Health Sciences Türkiye, Beyoğlu Eye Training and Research Hospital, Clinic of Ophthalmology, İstanbul, Türkiye
| | - Fevziye Öndeş Yılmaz
- University of Health Sciences Türkiye, Beyoğlu Eye Training and Research Hospital, Clinic of Ophthalmology, İstanbul, Türkiye
| | - Mehmet Özgür Çubuk
- University of Health Sciences Türkiye, Beyoğlu Eye Training and Research Hospital, Clinic of Ophthalmology, İstanbul, Türkiye
| | - Nilay Kandemir Beşek
- University of Health Sciences Türkiye, Beyoğlu Eye Training and Research Hospital, Clinic of Ophthalmology, İstanbul, Türkiye
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Román-López TV, García-Vilchis B, Murillo-Lechuga V, Chiu-Han E, López-Camaño X, Aldana-Assad O, Diaz-Torres S, Caballero-Sánchez U, Ortega-Mora I, Ramírez-González D, Zenteno D, Espinosa-Valdés Z, Tapia-Atilano A, Pradel-Jiménez S, Rentería ME, Medina-Rivera A, Ruiz-Contreras AE, Alcauter S. Estimating the Genetic Contribution to Astigmatism and Myopia in the Mexican Population. Twin Res Hum Genet 2023:1-9. [PMID: 37842863 DOI: 10.1017/thg.2023.41] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2023]
Abstract
Astigmatism and myopia are two common ocular refractive errors that can impact daily life, including learning and productivity. Current knowledge suggests that the etiology of these conditions is the result of a complex interplay between genetic and environmental factors. Studies in populations of European ancestry have demonstrated a higher concordance of refractive errors in monozygotic (MZ) twins compared to dizygotic (DZ) twins. However, there is a lack of studies on genetically informative samples of multi-ethnic ancestry. This study aimed to estimate the genetic contribution to astigmatism and myopia in the Mexican population. A sample of 1399 families, including 243 twin pairs and 1156 single twins, completed a medical questionnaire about their own and their co-twin's diagnosis of astigmatism and myopia. Concordance rates for astigmatism and myopia were estimated, and heritability and genetic correlations were determined using a bivariate ACE Cholesky decomposition method, decomposed into A (additive genetic), C (shared environmental) and E (unique environmental) components. The results showed a higher concordance rate for astigmatism and myopia for MZ twins (.74 and .74, respectively) than for DZ twins (.50 and .55). The AE model, instead of the ACE model, best fitted the data. Based on this, heritability estimates were .81 for astigmatism and .81 for myopia, with a cross-trait genetic correlation of rA = .80, nonshared environmental correlation rE = .89, and a phenotypic correlation of rP = .80. These results are consistent with previous findings in other populations, providing evidence for a similar genetic architecture of these conditions in the multi-ethnic Mexican population.
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Affiliation(s)
- Talía V Román-López
- Departamento de Neurobiología Conductual y Cognitiva, Instituto de Neurobiología, Universidad Nacional Autónoma de México, Juriquilla, Querétaro, México
| | - Brisa García-Vilchis
- Laboratorio de Neurogenómica Cognitiva, Unidad de Investigación en Psicobiología y Neurociencias, Coordinación de Psicobiología y Neurociencias, Facultad de Psicología, Universidad Nacional Autónoma de México, Coyoacán, Ciudad de México, México
| | - Vanessa Murillo-Lechuga
- Departamento de Neurobiología Conductual y Cognitiva, Instituto de Neurobiología, Universidad Nacional Autónoma de México, Juriquilla, Querétaro, México
| | - Enrique Chiu-Han
- Departamento de Neurobiología Conductual y Cognitiva, Instituto de Neurobiología, Universidad Nacional Autónoma de México, Juriquilla, Querétaro, México
| | - Xanat López-Camaño
- Departamento de Neurobiología Conductual y Cognitiva, Instituto de Neurobiología, Universidad Nacional Autónoma de México, Juriquilla, Querétaro, México
| | - Oscar Aldana-Assad
- Laboratorio Internacional de Investigación sobre el Genoma Humano, Universidad Nacional Autónoma de México, Juriquilla, Querétaro, México
| | - Santiago Diaz-Torres
- Mental Health & Neuroscience Program, QIMR Berghofer Medical Research Institute, Brisbane, Queensland, Australia
- School of Biomedical Sciences, Faculty of Medicine, The University of Queensland, Brisbane, Queensland, Australia
| | - Ulises Caballero-Sánchez
- Laboratorio de Neurogenómica Cognitiva, Unidad de Investigación en Psicobiología y Neurociencias, Coordinación de Psicobiología y Neurociencias, Facultad de Psicología, Universidad Nacional Autónoma de México, Coyoacán, Ciudad de México, México
| | - Ivett Ortega-Mora
- Laboratorio de Neurogenómica Cognitiva, Unidad de Investigación en Psicobiología y Neurociencias, Coordinación de Psicobiología y Neurociencias, Facultad de Psicología, Universidad Nacional Autónoma de México, Coyoacán, Ciudad de México, México
| | - Diego Ramírez-González
- Departamento de Neurobiología Conductual y Cognitiva, Instituto de Neurobiología, Universidad Nacional Autónoma de México, Juriquilla, Querétaro, México
| | - Diego Zenteno
- Laboratorio de Neurogenómica Cognitiva, Unidad de Investigación en Psicobiología y Neurociencias, Coordinación de Psicobiología y Neurociencias, Facultad de Psicología, Universidad Nacional Autónoma de México, Coyoacán, Ciudad de México, México
| | - Zaida Espinosa-Valdés
- Laboratorio de Neurogenómica Cognitiva, Unidad de Investigación en Psicobiología y Neurociencias, Coordinación de Psicobiología y Neurociencias, Facultad de Psicología, Universidad Nacional Autónoma de México, Coyoacán, Ciudad de México, México
| | - Andrea Tapia-Atilano
- Laboratorio de Neurogenómica Cognitiva, Unidad de Investigación en Psicobiología y Neurociencias, Coordinación de Psicobiología y Neurociencias, Facultad de Psicología, Universidad Nacional Autónoma de México, Coyoacán, Ciudad de México, México
| | - Sofía Pradel-Jiménez
- Laboratorio de Neurogenómica Cognitiva, Unidad de Investigación en Psicobiología y Neurociencias, Coordinación de Psicobiología y Neurociencias, Facultad de Psicología, Universidad Nacional Autónoma de México, Coyoacán, Ciudad de México, México
| | - Miguel E Rentería
- Mental Health & Neuroscience Program, QIMR Berghofer Medical Research Institute, Brisbane, Queensland, Australia
- School of Biomedical Sciences, Faculty of Medicine, The University of Queensland, Brisbane, Queensland, Australia
| | - Alejandra Medina-Rivera
- Laboratorio Internacional de Investigación sobre el Genoma Humano, Universidad Nacional Autónoma de México, Juriquilla, Querétaro, México
| | - Alejandra E Ruiz-Contreras
- Laboratorio de Neurogenómica Cognitiva, Unidad de Investigación en Psicobiología y Neurociencias, Coordinación de Psicobiología y Neurociencias, Facultad de Psicología, Universidad Nacional Autónoma de México, Coyoacán, Ciudad de México, México
| | - Sarael Alcauter
- Departamento de Neurobiología Conductual y Cognitiva, Instituto de Neurobiología, Universidad Nacional Autónoma de México, Juriquilla, Querétaro, México
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Kanclerz P, Bazylczyk N, Lanca C. The Prevalence of Astigmatism and Spectacle Wear in Polish Schoolchildren. J Binocul Vis Ocul Motil 2023; 73:124-130. [PMID: 37526941] [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] [Indexed: 08/02/2023]
Abstract
INTRODUCTION Unilateral or asymmetric astigmatism is considered a principal refractive error leading to amblyopia and regular eye examinations should be carried out during childhood to prevent visual impairment. The aim of this study was to evaluate the prevalence of astigmatism and spectacle wear among Polish schoolchildren. METHODS A cross sectional study was carried out in children aged 6 to 14 years old from 50 schools in Poland. The presence of astigmatism was assessed by non-cycloplegic autorefraction, and defined as a cylinder equal or greater than 0.75 D. Children were classified as living in urban or rural areas according to the school location. Spectacle wear was defined as having spectacles at school. RESULTS The study included 1041 children and 52.3% were girls (n = 544). The mean age was 8.62 ± 2.04 years. The prevalence of astigmatism was 7.3% (95% confidence interval [CI]: 5.8-9.1%). Only 21.7% of children with astigmatism wore spectacles at school. Astigmatism was diagnosed in 8.2% of boys (95% CI: 6.0-11.0%) and 6.4% of girls (95% CI: 4.5-8.8%; p = .13); cylindrical anisometropia was present in 19/76 (25.0%) of children with astigmatism (95% CI: 15.8%-36.3%). Against-the-rule astigmatism was the most common; it was observed in 48.7% of children with astigmatism, followed by with-the-rule astigmatism (44.7%) and oblique astigmatism (6.6%). The prevalence of astigmatism was not linearly correlated with age (r = 0.24; p = .53). Gender, age and place of living were not significantly associated with the presence of astigmatism. CONCLUSIONS This study reports a low prevalence of astigmatism in Polish school children. However, the majority of children with astigmatism were uncorrected. Further longitudinal studies are warranted.
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Affiliation(s)
- Piotr Kanclerz
- Helsinki Retina Research Group, University of Helsinki, Helsinki, Finland
- Department of Ophthalmology, Hygeia Clinic, Gdańsk, Poland
| | | | - Carla Lanca
- Escola Superior de Tecnologia da Saúde de Lisboa (ESTeSl), Instituto Politécnico de Lisboa, Lisboa, Portugal
- Comprehensive Health Research Center (CHRC), Escola Nacional de Saúde Pública, Universidade Nova de Lisboa, Lisboa, Portugal
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Fogel Tempelhof O, Bachar Zipori A, Mezad-Koursh D, Tomashpolski E, Abumanhal M, Leibovitch I, Ben Cnaan R. Congenital ptosis repair in children: comparison of frontalis muscle suspension surgery and levator muscle surgery. Graefes Arch Clin Exp Ophthalmol 2023; 261:2979-2986. [PMID: 37195337 DOI: 10.1007/s00417-023-06105-1] [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: 01/03/2023] [Revised: 04/11/2023] [Accepted: 05/06/2023] [Indexed: 05/18/2023] Open
Abstract
PURPOSE Comparing the surgical and refractive outcomes of congenital ptosis repair by different surgical techniques. METHODS This longitudinal cohort study reviewed medical records of 101 patients who underwent congenital ptosis repair, from 2006 to 2022 in a single center. Analysis was performed for demographic background, co-morbidities, pre-operative and post-operative ocular examinations and refraction, complications, reoperations, and success rates. RESULTS Following exclusion criteria, we remained with 80 patients (103 eyes) who underwent either frontalis muscle suspension surgery (FMS) (55 eyes) or levator muscle surgery (LM) (48 eyes). Patients in the FMS group were younger (mean age of 3.1 vs. 6.0 years, p < 0.001) and had worse pre-operative ocular assessments including prevalence of visual axis involvement, chin-up head position, ptosis severity, and levator muscle function (LF) (p < 0.001). Both groups had a 25% rate of reoperation, however while in the LM group reoperation was required solely due to undercorrection, in the FMS group various indications prompted reoperation. Success rate was higher in the FMS group (87.3% vs. 60.4%, p = 0.002). While pre-operative astigmatism was higher in the LM group (p = 0.019), no significant differences were observed post-operatively. Spherical and spherical equivalent changes over time were significant only in the FMS group (p = 0.010 and p = 0.004, respectively). CONCLUSIONS Within our cohort, a higher success rate of congenital ptosis repair was observed among patients who underwent FMS compared to LM, despite similar reoperation rates. In cases of severe ptosis and moderate LF, LM demonstrated a lower-than-anticipated success rate. Astigmatic changes following ptosis repair were not consistent in either group.
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Affiliation(s)
- Ortal Fogel Tempelhof
- Department of Ophthalmology, Tel Aviv Sourasky Medical Center, affiliated to The Sackler Faculty of Medicine, Tel Aviv University, 6 Weizmann St., 6423906, Tel Aviv, Israel.
| | - Anat Bachar Zipori
- Department of Ophthalmology, Tel Aviv Sourasky Medical Center, affiliated to The Sackler Faculty of Medicine, Tel Aviv University, 6 Weizmann St., 6423906, Tel Aviv, Israel
| | - Daphna Mezad-Koursh
- Department of Ophthalmology, Tel Aviv Sourasky Medical Center, affiliated to The Sackler Faculty of Medicine, Tel Aviv University, 6 Weizmann St., 6423906, Tel Aviv, Israel
| | - Elena Tomashpolski
- Department of Radiology, Shamir, Assaf Harofeh Medical Center, affiliated to The Sackler Faculty of Medicine, Tel Aviv University, Be'er Ya'akov, Israel
| | - Muhammad Abumanhal
- Department of Ophthalmology, Tel Aviv Sourasky Medical Center, affiliated to The Sackler Faculty of Medicine, Tel Aviv University, 6 Weizmann St., 6423906, Tel Aviv, Israel
| | - Igal Leibovitch
- Department of Ophthalmology, Tel Aviv Sourasky Medical Center, affiliated to The Sackler Faculty of Medicine, Tel Aviv University, 6 Weizmann St., 6423906, Tel Aviv, Israel
| | - Ran Ben Cnaan
- Department of Ophthalmology, Tel Aviv Sourasky Medical Center, affiliated to The Sackler Faculty of Medicine, Tel Aviv University, 6 Weizmann St., 6423906, Tel Aviv, Israel
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Zheng J, He L, Zhong J. Effect of femtosecond laser-assisted arcuate keratotomy versus toric intraocular lens implantation on correction of astigmatism in cataract surgery: a systematic review and meta-analysis. Lasers Med Sci 2023; 38:225. [PMID: 37773468 DOI: 10.1007/s10103-023-03893-0] [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: 07/01/2023] [Accepted: 09/21/2023] [Indexed: 10/01/2023]
Abstract
PURPOSE To compare the efficacy of femtosecond laser-assisted arcuate keratotomy (FSAK) combined with non-toric intraocular lens (IOL) implantation versus Toric IOL (TIOL) implantation in correcting corneal astigmatism in cataract patients. METHODS Relevant literature was searched in databases including PubMed, Web of Science, Cochrane Central Register of Controlled Trials (CENTRAL), and SinoMed. Data from the included studies were extracted. A meta-analysis was conducted to compare the correction performance of FSAK combined with non-toric IOL implantation and TIOL implantation using postoperative refractive astigmatism, correction index, and uncorrected distance visual acuity (UDVA) outcomes. Publication bias assessment and sensitivity analysis were also performed. RESULTS Five comparative studies were ultimately included in the meta-analysis. The TIOL group had smaller postoperative refractive astigmatism and a greater correction index compared to the FSAK group. The mean differences in postoperative refractive astigmatism and correction index between the two groups were - 0.19D (95% CI = 0.12 to 0.26, P < 0.01, I2 = 7%) and - 0.09 (95% CI = - 0.18 to 0.00, P = 0.04, I2 = 0%), respectively. We found no statistically significant difference in UDVA between the two groups (95% CI = - 0.01 to 0.11, P = 0.09, I2 = 70%). CONCLUSIONS FSAK combined with non-toric IOL implantation was found to be less effective than TIOL implantation in correcting preoperative corneal astigmatism in cataract patients. The difference in the effectiveness of astigmatism correction between the two surgical methods seems to diminish, as the degree of preoperative corneal astigmatism decreases.
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Affiliation(s)
- Jiang Zheng
- Department of Ophthalmology, The First Affiliated Hospital of Jinan University, Jinan University, Guangzhou, 510630, China
| | - Lun He
- Department of Ophthalmology, The Second Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou, 510260, China
| | - Jingxiang Zhong
- Department of Ophthalmology, The First Affiliated Hospital of Jinan University, Jinan University, Guangzhou, 510630, China.
- The Sixth Affiliated Hospital of Jinan University, Jinan University, Dongguan, 523129, China.
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Ndongo JADJ, Kamga B, Nyouma J, Aboubakar H, Ebana Mvogo SR. [Influence of tropical endemic limboconjunctivitis on the distribution of astigmatism in a black pediatric population: A hospital-based case-control study]. J Fr Ophtalmol 2023; 46:763-768. [PMID: 37210296 DOI: 10.1016/j.jfo.2022.12.030] [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: 07/06/2022] [Revised: 12/20/2022] [Accepted: 12/22/2022] [Indexed: 05/22/2023]
Abstract
PURPOSE To study the influence of tropical endemic limboconjunctivitis (TELC) on the distribution of astigmatism in a population of black children. PATIENTS AND METHODS We matched two groups of 36 children between the ages of 3 and 15 by age and sex. Group 1 consisted of children with TELC, and group 2 was made up of controls. All underwent cycloplegic refraction. The studied variables were age, sex, type and stage of TELC, spherical equivalent, absolute cylinder value and clinical type of astigmatism. The odds ratio was used to quantify the link between TELC and astigmatism. We used the Chi2 test for the comparison of qualitative variables and the Student T test for the comparison of the means of quantitative variables. The threshold of significance of the differences was set at 0.05. RESULTS Astigmatism was more common in children with TELC (61.97% vs. 37.5%), (OR=1.53; 95% CI 1.08-2.15; P=0.012). The history of TELC was associated with an increased risk of with-the-rule astigmatism (OR 1.91; 95%CI (1.23-2.97). CONCLUSION Pediatric TELC is frequently associated with the with-the-rule astigmatism in our practice setting.
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Affiliation(s)
- J A D J Ndongo
- Hôpital gynéco-obstétrique et pédiatrique de Douala, Douala, Cameroun; Faculté de médecine et des sciences pharmaceutiques de Douala, Douala, Cameroun.
| | - B Kamga
- Hôpital gynéco-obstétrique et pédiatrique de Douala, Douala, Cameroun.
| | - J Nyouma
- Faculté de médecine et des sciences pharmaceutiques de Douala, Douala, Cameroun.
| | - H Aboubakar
- Faculté de médecine et des sciences pharmaceutiques de Douala, Douala, Cameroun.
| | - S R Ebana Mvogo
- Hôpital gynéco-obstétrique et pédiatrique de Douala, Douala, Cameroun; Faculté de médecine et des sciences biomédicales de Yaoundé, Yaoundé, Cameroun.
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Rocha-de-Lossada C, García-Lorente M, La Cruz DZD, Rodríguez-Calvo-de-Mora M, Fernández J. Supplemental Toric Intraocular Lenses in the Ciliary Sulcus for Correction of Residual Refractive Astigmatism: A Review. Ophthalmol Ther 2023; 12:1813-1826. [PMID: 37145259 PMCID: PMC10287861 DOI: 10.1007/s40123-023-00721-0] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2023] [Accepted: 04/17/2023] [Indexed: 05/06/2023] Open
Abstract
PURPOSE This study conducted a critical review of the peer-reviewed literature on the use of supplemental toric intraocular lenses (STIOL) in the ciliary sulcus to correct residual refractive astigmatism. METHODS This review used PubMed as a database from 1 January 2010 to 13 March 2023. According to the inclusion and exclusion criteria defined, 14 articles were selected for the current review. RESULTS The data of 155 eyes were analyzed. Most of the studies reviewed had a short follow-up and poor or limited design, including case reports, case series, and retrospective cohorts. The follow-up period ranged from 43 days to 4.5 years. STIOL rotation was the most frequently described complication in the literature, with a mean rotation of 30.48 ± 19.90°. These patients required repositioning in 50 of 155 eyes (32.25%). Moreover, four eyes (2.58%) required scleral fixation sutures and two eyes (1.29%) iris fixation. Other complications were high intraocular pressure (3 eyes, 1.93%), transient corneal edema (2 eyes, 1.29%), corneal decompensation (2 eyes, 1.29%), and pigment dispersion (1 eye, 0.64%). From the total, 57.41% of eyes (89 eyes from 155) achieved within ± 0.50D of target refractive astigmatism. It is important to highlight that at least 52 eyes out of the 155 (33.54%) had an abnormal cornea with irregular astigmatism. CONCLUSION STIOL seem to offer good visual and refractive outcomes. However, STIOL showed variable rotational stability, especially in some platforms. Further studies with a more robust design, methodology, and standardized analysis methods are needed to confirm these trends.
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Affiliation(s)
- Carlos Rocha-de-Lossada
- Ophthalmology Department, Clínica QVision, Vithas Almería, Almería, Spain.
- Ophthalmology Department, Vithas Málaga, Malaga, Spain.
- Ophthalmology Department, Hospital Regional Universitario Málaga, Malaga, Spain.
- Departamento de Cirugía, Área de Oftalmología, Universidad de Sevilla, Seville, Spain.
| | | | - Diego Zamora-de La Cruz
- Anterior Segment Department, Instituto de Oftalmología Fundación Conde de Valenciana, Mexico City, Mexico
- Anterior Segment Department, Hospital Mexiquense de Salud Visual, ISEM, Naucalpan de Juárez, Mexico
| | - Marina Rodríguez-Calvo-de-Mora
- Ophthalmology Department, Clínica QVision, Vithas Almería, Almería, Spain
- Ophthalmology Department, Vithas Málaga, Malaga, Spain
- Ophthalmology Department, Hospital Regional Universitario Málaga, Malaga, Spain
| | - Joaquín Fernández
- Ophthalmology Department, Clínica QVision, Vithas Almería, Almería, Spain
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Chang YM, Weng TH, Tai MC, Lin TY, Chen YH, Chien KH. Corneal topographic changes in patients with thyroid eye disease: A retrospective cross-sectional study. Cont Lens Anterior Eye 2023; 46:101843. [PMID: 37037712 DOI: 10.1016/j.clae.2023.101843] [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: 11/02/2022] [Revised: 03/31/2023] [Accepted: 04/06/2023] [Indexed: 04/12/2023]
Abstract
PURPOSE This study aimed to evaluate corneal topographic findings in patients with thyroid eye disease (TED) using a Galilei camera and compare their corneal topographic parameters with those of control patients. METHODS This retrospective cross-sectional study included 52 eyes of 26 patients with TED (study group) and 40 eyes of 20 controls treated at a tertiary medical center in Taiwan between January and December 2021. All participants underwent basic ophthalmological examinations, corneal topography examination using a Galilei dual Scheimpflug camera, thyroid function examination, and orbital computed tomography. The corneal topographic parameters and cross-sectional area of the extraocular muscles were compared between the TED and control groups. RESULTS Several corneal topographic parameters, including the Inferior-Superior Index, Keratoconus Prediction Index, Surface Asymmetry Index, Surface Regularity Index, simulated keratometry astigmatism, and anterior instantaneous astigmatism axis, differed significantly between the groups (P ≤ 0.05). The anterior instantaneous astigmatism axis was more oblique in the TED group than in the control group. A scatter plot revealed a more scattered distribution in the anterior instantaneous astigmatism axis in the TED group than in the control group. However, the corneal topographic parameters did not differ significantly among the different thyroid dysfunction groups. CONCLUSIONS The corneas of patients with TED are suspicious and keratoconus-like, and TED can increase anterior corneal astigmatism in the oblique axis, albeit with large variations in the extent of change. These TED-related corneal changes may aid in the early diagnosis of TED, especially "silent" TED.
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Affiliation(s)
- Yu-Min Chang
- Department of Ophthalmology, Tri-Service General Hospital and School of Medicine, National Defense Medical Center, Taipei, Taiwan, Republic of China
| | - Tzu-Heng Weng
- Department of Ophthalmology, Tri-Service General Hospital and School of Medicine, National Defense Medical Center, Taipei, Taiwan, Republic of China
| | - Ming-Cheng Tai
- Department of Ophthalmology, Tri-Service General Hospital and School of Medicine, National Defense Medical Center, Taipei, Taiwan, Republic of China
| | - Ting-Yi Lin
- Department of Ophthalmology, Tri-Service General Hospital and School of Medicine, National Defense Medical Center, Taipei, Taiwan, Republic of China
| | - Yi-Hao Chen
- Department of Ophthalmology, Tri-Service General Hospital and School of Medicine, National Defense Medical Center, Taipei, Taiwan, Republic of China
| | - Ke-Hung Chien
- Department of Ophthalmology, Tri-Service General Hospital and School of Medicine, National Defense Medical Center, Taipei, Taiwan, Republic of China.
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Ucar F, Turgut Ozturk B. Effectiveness of toric IOL and capsular tension ring suturing technique for rotational stability in eyes with long axial length. Int Ophthalmol 2023; 43:2917-2924. [PMID: 36930361 DOI: 10.1007/s10792-023-02694-2] [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: 10/04/2022] [Accepted: 03/11/2023] [Indexed: 03/18/2023]
Abstract
OBJECTIVE To evaluate the efficacy of the toric intraocular lens (IOL) and capsular tension ring (CTR) suturing technique in eyes with long axial length (AL) with a high risk of toric IOL rotation. METHODS This is a retrospective observational case series. The data files of patients who underwent a one-piece acrylic toric IOL (Tecnis Toric IOL and Acrysof IQ Toric IOL) implantation with the toric IOL and CTR suturing technique for cataract and astigmatism or toric IOL repositioning were analyzed. Inclusion criteria were a regular total corneal astigmatism of ≥ 1.5 D and an AL of ≥ 26.0 mm. Preoperative and postoperative astigmatism, uncorrected distance visual acuity (UDVA), IOL rotation, intraoperative, and postoperative complications were evaluated. RESULTS A total of 30 eyes of 29 patients were included in this study. The mean AL was 27.82 ± 1.53 mm (range, 26.08-31.07). UDVA revealed a statistically significant improvement from 0.84 ± 0.20 logMAR preoperatively to 0.04 ± 0.06 logMAR postoperatively (p < 0.001). The mean preoperative corneal astigmatism was 3.08 ± 1.01 D reduced to the postoperative residual astigmatism of 0.59 ± 0.32 D which was found also statistically significant (p < 0.001). Only 2 eyes (6.2%) had postoperative toric IOL rotation of 5° and 10°, respectively. The mean degree of postoperative rotation was 0.50 ± 2.01. CONCLUSION This technique provided excellent rotational stability even in eyes with longer AL and did not require additional intervention.
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Affiliation(s)
- Fikret Ucar
- Department of Ophthalmology, Konyagoz Eye Hospital, Sancak Mah. Unluer Sok. No: 13, Selcuklu, 42100, Konya, Turkey.
| | - Banu Turgut Ozturk
- Department of Ophthalmology, Faculty of Medicine, Selcuk University, Konya, Turkey
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Zhu X, Wang Y, Liu Y, Ye C, Zhou X, Qu X. Effects of atropine 0.01% on refractive errors in children with myopia. Heliyon 2023; 9:e18743. [PMID: 37576220 PMCID: PMC10415657 DOI: 10.1016/j.heliyon.2023.e18743] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2023] [Revised: 07/11/2023] [Accepted: 07/26/2023] [Indexed: 08/15/2023] Open
Abstract
Background Little is known about changes in astigmatism during atropine treatment. We aimed to explore the effects of atropine 0.01% eye drops on both spherical and cylindrical refractive errors in myopic children. Methods Children aged 6-14 years with myopia ≥ -6.00 D and < -0.50 D, and total astigmatism > -2.00 D in at least one eye were enrolled. Subjects were randomised either to receive atropine 0.01% once nightly with single-vision lenses or simply to wear single-vision lenses and were followed up at 3-month intervals. Cycloplegic refraction and axial length were measured. The magnitude and direction of total astigmatism (TA), corneal astigmatism (CA), and residual astigmatism (RA) were evaluated. Results Overall, 119 eyes (69 eyes in the atropine group and 50 eyes in the control group) were included in the final analyses after 9 months. Atropine-treated eyes showed significantly less progression of myopia than did control eyes (spherical equivalent: -0.35 ± 0.33 vs. -0.56 ± 0.49 D, p = 0.001; axial length: 0.20 ± 0.19 vs. 0.33 ± 0.19 mm, p < 0.001). Compared with control eyes (-0.04 ± 0.23 D), a significant increase in TA was observed in the atropine-treated eyes (-0.14 ± 0.29 D); this was mainly attributed to the increase in CA (-0.17 ± 0.26 D) rather than the minor decrease in RA (0.02 ± 0.32 D). Conclusions Atropine 0.01% was effective in preventing myopia progression, whereas 9 months of atropine treatment resulted in a clinically small, but statistically significant increase in TA in myopic Chinese children.
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Affiliation(s)
- Xingxue Zhu
- Department of Ophthalmology and Vision Science, Eye & ENT Hospital, Fudan University, Shanghai, China
- NHC Key Laboratory of Myopia, Fudan University, Shanghai, China
- Laboratory of Myopia, Chinese Academy of Medical Sciences, Shanghai, China
| | - Yuliang Wang
- Department of Ophthalmology and Vision Science, Eye & ENT Hospital, Fudan University, Shanghai, China
- NHC Key Laboratory of Myopia, Fudan University, Shanghai, China
- Laboratory of Myopia, Chinese Academy of Medical Sciences, Shanghai, China
| | - Yujia Liu
- Department of Ophthalmology and Vision Science, Eye & ENT Hospital, Fudan University, Shanghai, China
- NHC Key Laboratory of Myopia, Fudan University, Shanghai, China
- Laboratory of Myopia, Chinese Academy of Medical Sciences, Shanghai, China
| | - Chaoying Ye
- Department of Ophthalmology and Vision Science, Eye & ENT Hospital, Fudan University, Shanghai, China
- NHC Key Laboratory of Myopia, Fudan University, Shanghai, China
- Laboratory of Myopia, Chinese Academy of Medical Sciences, Shanghai, China
| | - Xingtao Zhou
- Department of Ophthalmology and Vision Science, Eye & ENT Hospital, Fudan University, Shanghai, China
- NHC Key Laboratory of Myopia, Fudan University, Shanghai, China
- Laboratory of Myopia, Chinese Academy of Medical Sciences, Shanghai, China
| | - Xiaomei Qu
- Department of Ophthalmology and Vision Science, Eye & ENT Hospital, Fudan University, Shanghai, China
- NHC Key Laboratory of Myopia, Fudan University, Shanghai, China
- Laboratory of Myopia, Chinese Academy of Medical Sciences, Shanghai, China
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Korpole NR, Kurada P, Kuzhuppilly NIR, Korpole MR. Comparison of clinical outcomes of Eyecryl toric and Alcon toric intra-ocular lenses - A real world study. Indian J Ophthalmol 2023; 71:2972-2977. [PMID: 37530267 PMCID: PMC10538847 DOI: 10.4103/ijo.ijo_3403_22] [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] [Subscribe] [Scholar Register] [Received: 12/31/2022] [Revised: 05/07/2023] [Accepted: 05/27/2023] [Indexed: 08/03/2023] Open
Abstract
Purpose To compare the visual outcomes and residual astigmatism following implantation of Eyecryl toric versus Alcon AcrySof IQ toric intra-ocular lenses (IOLs). Methods This retrospective, observational study included 143 eyes of 141 patients who underwent phaco-emulsification, followed by implantation of Eyecryl toric IOL (n = 83 eyes) or Alcon toric IOL (n = 60 eyes) in an eye hospital in South India from 2018 to 2021. At 1 month post-op, the uncorrected distance visual acuity (UCVA), best corrected distance visual acuity (BCVA), and residual astigmatism of the toric IOL were compared and analyzed. Results The mean pre-op corneal astigmatism was 2.02 ± 0.81 D and 1.70 ± 0.68 D in the Alcon and Eyecryl groups, respectively (P = 0.005). The mean post-op corneal astigmatism at 1 month was 0.50 ± 0.51 D and 0.36 ± 0.42 D in the Alcon and Eyecryl groups, respectively, with no statistically significant difference between them (P = 0.87). The mean post-op UCVA in logarithm of minimum angle of resolution (logMAR) at 1 month was similar between the groups at 0.17 ± 0.18 and 0.17 ± 0.16 in the Alcon and Eyecryl groups, respectively (P = 0.98). The mean post-op BCVA in logMAR at 1 month was 0.06 ± 0.09 and 0.03 ± 0.10 in the Alcon and Eyecryl groups, respectively (P = 0.02). Conclusion Both Eyecryl toric and Alcon AcrySof IQ toric IOLs showed comparable post-operative outcomes in terms of UCVA and residual astigmatism. The post-op BCVA was clinically similar between groups but statistically better in the Eyecryl toric group.
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Affiliation(s)
- Nilay Reddy Korpole
- Department of Ophthalmology, Kasturba Medical College, Manipal, Manipal Academy of Higher Education, Manipal, Karnataka, India
| | - Padma Kurada
- Drishti Eye Centre, Plot No. 114A, Lane Opp. SBI, Srinagar Colony Main Road, Ameerpet, Hyderabad India
| | - Neetha I R Kuzhuppilly
- Department of Ophthalmology, Kasturba Medical College, Manipal, Manipal Academy of Higher Education, Manipal, Karnataka, India
| | - Madhukar Reddy Korpole
- Drishti Eye Centre, Plot No. 114A, Lane Opp. SBI, Srinagar Colony Main Road, Ameerpet, Hyderabad India
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Rocha-de-Lossada C, Rodríguez-Vallejo M, Rodríguez-Calvo-de-Mora M, Ribeiro FJ, Fernández J. Managing low corneal astigmatism in patients with presbyopia correcting intraocular lenses: a narrative review. BMC Ophthalmol 2023; 23:254. [PMID: 37280550 DOI: 10.1186/s12886-023-03003-2] [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: 04/20/2023] [Accepted: 05/31/2023] [Indexed: 06/08/2023] Open
Abstract
Cataract surgery has become a refractive procedure in which emmetropia is the goal, with the implantation of extended depth-of-focus or multifocal intraocular lenses (IOLs) being the commonly selected option to restore vision beyond the far distance. The selection criteria for implanting these lenses can differ from those for monofocal IOLs and even between technologies, as eye characteristics can affect postoperative visual performance. Corneal astigmatism is an eye characteristic that can affect visual performance differently, depending on the implanted IOL. The magnitude of corneal astigmatism, the tolerance of the IOL to this astigmatism, economic aspects, comorbidities, and the efficacy of astigmatism treatment are factors that can make surgeons' doubt as to what astigmatism treatment should be applied to each patient. This review aims to summarize the current evidence related to low astigmatism tolerance in presbyopia-correcting lenses, the efficacy achieved through corneal incisions, and their comparison with the implantation of toric IOLs.
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Affiliation(s)
- Carlos Rocha-de-Lossada
- Qvision, Department of Ophthalmology of VITHAS Almería Hospital, Almería, 04120, Spain
- Ophthalmology Department, VITHAS Málaga, Málaga, 29016, Spain
- Hospital Regional Universitario de Málaga, Plaza del Hospital Civil, S/N, Málaga, 29009, Spain
- Departamento de Cirugía, Universidad de Sevilla, Área de Oftalmología. Doctor Fedriani, S/N, Sevilla, 41009, Spain
| | | | - Marina Rodríguez-Calvo-de-Mora
- Qvision, Department of Ophthalmology of VITHAS Almería Hospital, Almería, 04120, Spain
- Ophthalmology Department, VITHAS Málaga, Málaga, 29016, Spain
- Hospital Regional Universitario de Málaga, Plaza del Hospital Civil, S/N, Málaga, 29009, Spain
| | - Filomena J Ribeiro
- Departamento de Oftalmologia, Hospital da Luz, Lisbon, 1500-650, Portugal
- Faculdade de Medicina, Universidade de Lisboa, Lisbon, 1649-028, Portugal
| | - Joaquín Fernández
- Qvision, Department of Ophthalmology of VITHAS Almería Hospital, Almería, 04120, Spain
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Sachdev GS, Patekar KB, Ramamurthy S. Comparative analysis of visual outcomes following small-incision lenticule extraction with or without cyclotorsion compensation in eyes with high astigmatism: Contralateral eye study. Indian J Ophthalmol 2023; 71:2469-2473. [PMID: 37322663 PMCID: PMC10418031 DOI: 10.4103/ijo.ijo_224_23] [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: 01/24/2023] [Revised: 03/02/2023] [Accepted: 03/23/2023] [Indexed: 06/17/2023] Open
Abstract
Purpose To compare the visual outcomes in patients undergoing small-incision lenticule extraction (SMILE) for correction of myopic astigmatism (≥-1.50 D) with or without manual cyclotorsion compensation. Methods A prospective, double-blinded, randomized, contralateral study was conducted in the refractive services of a tertiary eye care center. Eligible patients with bilateral high myopic astigmatism (≥1.5 D) and intraoperative cyclotorsion (≥5°) undergoing SMILE between June 2018 and May 2019 were included. Cyclotorsion compensation was performed using triple centration method before femtosecond laser delivery. Uncorrected and corrected distance visual acuity (UDVA and CDVA, respectively) measurement, manifest refraction, slit-lamp biomicroscopy, and corneal tomography were performed preoperatively and at 1 and 3 months' postoperative visit. Astigmatic outcomes were analyzed using Alpins criteria. Results A total of 30 patients (60 eyes) were included in this study. The patients underwent bilateral SMILE surgery, with manual cyclotorsion compensation in one eye (CC group, n = 30 eyes) and no cyclotorsion compensation in the other eye (NCC group, n = 30 eyes). Preoperative astigmatism and intraoperative cyclotorsion were -2.0 D and 7.03° ± 1.06° (CC) and -1.75 D and 7.24° ± 0.98° (NCC) (P = 0.472 and 0.240, respectively). No significant differences were noted in mean refractive spherical equivalent (MRSE), UDVA, CDVA, and refractive error between the two groups at 3 months' postoperative visit. Astigmatic outcomes measured using Alpins criteria demonstrated no significant difference between the two cohorts. Conclusion The cyclotorsion compensation technique provided no additional advantage in terms of astigmatic outcomes or postoperative visual quality, in eyes with high preoperative astigmatism and intraoperative cyclotorsion.
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Affiliation(s)
- Gitansha S Sachdev
- Cornea and Refractive Services, The Eye Foundation, Coimbatore, Tamil Nadu, India
| | - Komal B Patekar
- Cornea and Refractive Services, The Eye Foundation, Coimbatore, Tamil Nadu, India
| | - Shreyas Ramamurthy
- Cornea and Refractive Services, The Eye Foundation, Coimbatore, Tamil Nadu, India
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Chen L, Chen X, Li F, Liu Z. Refractive surprise of irregular astigmatism following cataract surgery in two patients with neglected subclinical corneal ectasia: two case reports. BMC Ophthalmol 2023; 23:239. [PMID: 37248492 DOI: 10.1186/s12886-023-02984-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2022] [Accepted: 05/22/2023] [Indexed: 05/31/2023] Open
Abstract
BACKGROUND Corneal ectatic diseases are a group of corneal disorder characterized by the steepening and thinning of the cornea. Older people are not a high-risk population for corneal ectatic diseases; due to the lack of typical preoperative topographic manifestations, there is a high possibility that corneal ectasia is undetected. CASE PRESENTATION Two patients with subclinical corneal ectasia and senile cataracts presented with irregular astigmatism after steep-axis incision during cataract surgery. The two cases presented in this case report are rare because both patients experienced tremendous changes in astigmatism after cataract surgery. CONCLUSION This case report may shed some light on astigmatism-correcting steep-axis incisions in cataract surgeries.
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Affiliation(s)
- Leran Chen
- Department of Ophthalmology, Peking University Third Hospital, Beijing key laboratory of restoration of damaged ocular nerve, Beijing, 100191, China
| | - Xiaoyong Chen
- Department of Ophthalmology, Peking University Third Hospital, Beijing key laboratory of restoration of damaged ocular nerve, Beijing, 100191, China
| | - Fanshu Li
- Department of Ophthalmology, Peking University Third Hospital, Beijing key laboratory of restoration of damaged ocular nerve, Beijing, 100191, China
| | - Ziyuan Liu
- Department of Ophthalmology, Peking University Third Hospital, Beijing key laboratory of restoration of damaged ocular nerve, Beijing, 100191, China.
- Peking University Institute of Laser Medicine, Beijing, China.
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de Ortueta D, von Rüden D, Arba Mosquera S. Symmetric offset versus asymmetric offset ablation with transepithelial refractive keratectomy. BMC Ophthalmol 2023; 23:219. [PMID: 37198622 DOI: 10.1186/s12886-023-02971-9] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2022] [Accepted: 05/09/2023] [Indexed: 05/19/2023] Open
Abstract
BACKGROUND In eyes with hyperopia, astigmatism, and mixed astigmatism Transepithelial photorefractive keratectomy (TransPRK) is a modality of surface ablation surgery. We center on the corneal vertex for all our treatments (all have an offset to the center of the pupil) and wanted to compare the visual results of symmetrical profile treatments versus asymmetrical profile treatments (the center of the treatment on the vertex and the boundaries with the pupil center) using TransPRK as corneal refractive surgery. METHODS We retrospectively analyzed two consecutive groups of eyes treated with TransPRK in the Aurelios Augenlaserzentrum Recklinghausen: 47 eyes treated with symmetrical offset and 51 eyes treated with asymmetrical offset. The intergroup comparisons were assessed using unpaired Student's T-tests, whereas preoperative to postoperative changes were assessed using paired Student's T-tests. RESULTS Refractive outcomes were good for both groups. 83 and 88% of eyes were within the spherical equivalent of 0.5 D from the target in the symmetric and asymmetric offset groups, respectively. 85 and 84% of eyes had a postoperative astigmatism of 0.5 D or lower in the symmetric and asymmetric offset groups, respectively. CONCLUSION We have not found a significant difference in the refractive outcomes between the symmetric group and the asymmetric group of eyes treated both with TransPRK for preoperatively hyperopic or mixed astigmatism.
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Affiliation(s)
- Diego de Ortueta
- Aurelios Augenlaserzentrum Recklinghausen, Erlbruch 34-36, 45657, Recklinghausen, Germany.
| | - Dennis von Rüden
- Aurelios Augenlaserzentrum Recklinghausen, Erlbruch 34-36, 45657, Recklinghausen, Germany
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Yang K, Li J, Zhang W, Liu Z, Song C, Zhao Y. Implanting toric implantable collamer lens displays better astigmatism correction than implantable collamer lens combined with manually limbal relaxing incision. BMC Ophthalmol 2023; 23:198. [PMID: 37147624 PMCID: PMC10161410 DOI: 10.1186/s12886-023-02941-1] [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: 04/14/2022] [Accepted: 04/24/2023] [Indexed: 05/07/2023] Open
Abstract
BACKGROUND This retrospective study aimed to compare the outcomes of toric implantable collamer lens (TICL) surgery with those of implantable collamer lens (ICL) implantation combined with limbal relaxing incision (LRI) in patients with low myopia and astigmatism. METHODS A total of 40 eyes of 28 patients who underwent TICL implantation and 40 eyes of 27 patients who underwent ICL implantation combined with manually LRI between 2021 and 2022 were included. Primary outcomes were manifest sphere and cylinder, intraocular pressure, visual acuity, and astigmatism parameters at 1 day, 1 week, and 1, 3, and 6 months postoperatively. RESULTS The two surgeries showed comparable effects on manifest sphere and cylinder, intraocular pressure, and visual acuity (all p > 0.1). Surgery-induced astigmatism (SIA) was maintained as stable in the TICL group (1.73 to 1.68, p = 0.420), but was significantly reduced in the ICL/LRI group (1.74 to 1.17, p = 0.001) from preoperative to postoperative 6 months. The TICL group displayed significantly higher SIA and correction index at postoperative 1, 3, and 6 months than the ICL/LRI group (at 6 months: SIA, 1.68 (1.26, 1.96) vs., 1.17 (1.00, 1.64), p = 0.010; CI: 0.98 (0.78, 1.25) vs. 0.80 (0.61, 1.04), p = 0.018). No complications occurred during follow-up. CONCLUSIONS The effects of ICL/LRI are comparable to those of TICL in correcting myopia. TICL implantation displays better astigmatism correction than ICL/LRI.
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Affiliation(s)
- Ke Yang
- Beijing Tongren Eye Center, Beijing Key Laboratory of Ophthalmology and Visual Science, Beijing Tongren Hospital, Capital Medical University, Beijing, 100730, China
| | - Jiaxin Li
- Medical School, Pingdingshan University, Pingdingshan, 467000, China
| | - Weihua Zhang
- Liaocheng People's Hospital, Liaocheng, 252000, China
| | - Zhanjiang Liu
- Chaoyang Central Hospital, Liaoning Province, 122000, China
| | - Chenjie Song
- Beijing Tongren Eye Center, Beijing Key Laboratory of Ophthalmology and Visual Science, Beijing Tongren Hospital, Capital Medical University, Beijing, 100730, China
| | - Yang Zhao
- Beijing Tongren Eye Center, Beijing Key Laboratory of Ophthalmology and Visual Science, Beijing Tongren Hospital, Capital Medical University, Beijing, 100730, China.
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Salman A, Kailani O, Ghabra M, Omran R, Darwish TR, Shaaban R, Ibrahim H, Alhaji H, Khalil H. Corneal higher order aberrations by Sirius topography and their relation to different refractive errors. BMC Ophthalmol 2023; 23:104. [PMID: 36927406 PMCID: PMC10018888 DOI: 10.1186/s12886-023-02841-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2022] [Accepted: 03/03/2023] [Indexed: 03/18/2023] Open
Abstract
PURPOSE To compare the root mean square (RMS) of anterior corneal higher-order aberrations (HOAs) in ametropic and emmetropic eyes. METHODS This retrospective observational study was conducted at the Department of Ophthalmology, Tishreen University Hospital, Latakia, Syria. Study eyes were divided into four groups based on refractive error: mild-to-moderate myopia, hypermetropia, myopic astigmatism, and emmetropic eyes as controls. The following anterior corneal HOAs were evaluated using the Scheimpflug-Placido Sirius (CSO, Italy) tomographer over 6 mm pupil: Root mean square (RMS) total corneal HOAs, RMS trefoil, RMS coma and RMS spherical aberrations. RESULTS RMS values of total HOAs, trefoil and coma showed statistically significant differences in all four groups (P < 0.05, all). HOAs were noted to be lowest in the control group (0.18 ± 0.09, 011 ± 0.08 and 0.09 ± 0.08 μm, respectively) and highest in the myopic astigmatism group (0.31 ± 0.16, 0.15 ± 0.12, 0.17 ± 0.14 μm, respectively). RMS spherical aberration was lowest in the astigmatism group (0.00 ± 0.16 μm) with a statistically significant difference from that in the control group (0.05 ± 0.07 μm, P = 0.049). CONCLUSION The mean RMS values of total HOAs, trefoil and coma were highest in the astigmatism group and lowest in the control group. However, spherical aberration was minimal in the astigmatism group. A better understanding and targeted treatment of higher-order aberrations in ametropic human eyes, and in particular eyes with astigmatism, may enhance visual quality and performance in the treatment of refractive errors. Recognising atypical HOAs may also assist in the early detection of pathological conditions such as keratoconus.
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Affiliation(s)
| | - Obeda Kailani
- Department of Ophthalmology, King's College Hospital NHS Foundation Trust, London, UK
| | - Marwan Ghabra
- Department of Ophthalmology, Whipps Cross University Hospital, London, Leytonstone, UK
| | - Rana Omran
- Department of Ophthalmology, Eye Surgical Hospital, Damascus, Syria
| | - Taym R Darwish
- Department of Ophthalmology, Tishreen University, Latakia, Syria
| | - Rafea Shaaban
- Department of Ophthalmology, Tartous University, Tartous, Syria
| | | | - Hala Alhaji
- Department of Ophthalmology, Tishreen University, Latakia, Syria
| | - Hussam Khalil
- Eye Surgical Hospital, Health Ministry, Damascus, Syria
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Coskunseven E, Kayhan B. Asymmetric intracorneal ring segments in the treatment of snowman phenotype keratoconus. J Fr Ophtalmol 2023; 46:510-517. [PMID: 36890076 DOI: 10.1016/j.jfo.2022.11.012] [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: 09/04/2022] [Revised: 10/13/2022] [Accepted: 11/11/2022] [Indexed: 03/08/2023]
Abstract
OBJECTIVE To evaluate refractive, aberrometric, topographic, and topometric outcomes of asymmetric intracorneal ring segment (ICRS) implantation in snowman phenotype (asymmetric bow-tie) keratoconus. METHODS This retrospective, interventional study included eyes with snowman phenotype keratoconus. Two asymmetric ICRSs (Keraring AS) were implanted after femtosecond laser-assisted tunnel formation. Visual, refractive, aberrometric, topographic, and topometric changes after asymmetric ICRS implantation were evaluated with a mean follow-up of 11 months (6-24 months). MAIN RESULTS Seventy-one eyes were analyzed in the study. Keraring AS implantation corrected refractive errors significantly. The mean spherical error decreased from -5.06±4.23 D to -1.62±3.45 D (P=0.001), and the mean cylindrical error decreased from -5.43±2.48 D to -2.44±1.49 D (P=0.001). Uncorrected distance visual acuity improved from 0.98±0.80 to 0.46±0.46 Log MAR (P=0.001), and corrected distance visual acuity improved from 0.58±0.56 to 0.17±0.39 Log MAR (P=0.001). Keratometry (K) maximum, K1, K2, K mean, astigmatism, and corneal asphericity (Q-value) showed a significant decrease (P=0.001). Vertical coma aberration decreased significantly from -3.31±2.12μm to -2.56±1.94μm (P=0.001). All topometric indices of corneal irregularities were significantly reduced postoperatively (P=0.001). CONCLUSIONS Keraring AS implantation in snowman phenotype keratoconus demonstrated good efficacy and safety. Clinical, topographic, topometric, and aberrometric parameters improved significantly after Keraring AS implantation.
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Affiliation(s)
- E Coskunseven
- Département de chirurgie réfractive, hôpital Dunyagoz Etiler, Istanbul, Turkey; Faculté des sciences de la santé, université Rumeli d'Istanbul, Istanbul, Turkey
| | - B Kayhan
- Département de chirurgie réfractive, hôpital Dunyagoz Etiler, Istanbul, Turkey; Département d'ophtalmologie, Sultan II, hôpital de formation et de recherche Abdulhamid Han, université des sciences de la santé, Istanbul, Turkey.
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Sethi A, Sethi A, Sethi R, Sethi S, Sethi V, Lokwani P, Chilwade M. They see, they learn: Pre-COVID-19 prevalence of refractive errors in school children in suburban areas of North India. Indian J Ophthalmol 2023; 71:946-950. [PMID: 36872715 DOI: 10.4103/ijo.ijo_1174_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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/07/2023] Open
Abstract
Purpose India has the largest population of youth in the world, thereby making them important contributors to the "India of Tomorrow". Over 80% of knowledge gained is by the visual sense, thereby making school screening programs a necessity in our country. Data from the pre-COVID era, that is, 2017-18 was collected from close to 19,000 children in Gurugram, Haryana, a tier two city in National Capital Region, India. A similar prospective observational study is planned post COVID-19 (2022-23) for further analysis to depict the impact of COVID-19 in these areas. Methods The program They See, They Learn was set at government schools in the area of operations (district of Gurgaon, Haryana), where the children and their families were unable to afford eye care services. All children who were screened underwent a comprehensive eye examination at the school premises itself. Results A total of 18,939 students were screened over a period of 18 months, covering a total of 39 schools in the Gurugram belt, in the first phase of the program. Eleven point eight percent (n = 2254) of all school students had some form of refractive error. Girl students were found to have a higher refractive error rate (13.3%) compared to boy students (10.1%) across the schools screened. Myopia was the most common type of refractive error. Conclusion School students require perfect vision or else they can be discouraged and may become a major burden to the economy of any developing nation. A school screening program aiming at populations that cannot afford such basic needs like spectacles is a must in all zones of the country.
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Affiliation(s)
- Aditya Sethi
- Pediatric Ophthalmology and Strabismus, Arunodaya Deseret Eye Hospital, Gurgaon, Haryana, India
| | - Arun Sethi
- Director of Ophthalmology, Arunodaya Deseret Eye Hospital, Gurgaon, Haryana; Medical Director Ophthalmology, Arunodaya Charitable Trust, Delhi, India
| | - Reena Sethi
- Pediatric Ophthalmology and Strabismus, Arunodaya Deseret Eye Hospital, Gurgaon, Haryana; Medical Director Ophthalmology, Arunodaya Charitable Trust, Delhi, India
| | - Sahebaan Sethi
- Community Ophthalmology, Arunodaya Deseret Eye Hospital, Gurgaon, Haryana, India
| | - Vaibhav Sethi
- Community Ophthalmology, Arunodaya Deseret Eye Hospital, Gurgaon, Haryana, India
| | - Parul Lokwani
- Community Ophthalmology, Arunodaya Deseret Eye Hospital, Gurgaon, Haryana, India
| | - Manisha Chilwade
- Community Ophthalmology, Arunodaya Deseret Eye Hospital, Gurgaon, Haryana, India
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Tan Y, Wang X, Fu J, Tang J, Xiang J, Tao L, Luo Y. Amblyopic astigmatism characteristics and surgical outcomes in younger children with severe congenital ptosis after frontalis suspension surgery. BMC Ophthalmol 2023; 23:54. [PMID: 36750792 PMCID: PMC9903475 DOI: 10.1186/s12886-023-02804-9] [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] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2021] [Accepted: 02/01/2023] [Indexed: 02/09/2023] Open
Abstract
BACKGROUND To examine the astigmatism characteristics and surgical outcomes in patients with unilateral severe congenital ptosis following frontalis suspension surgery. METHODS We included 53 congenital ptosis patients who underwent frontalis suspension surgery in Hunan Children's Hospital. Each patient underwent a refractive examination before and after surgery to assess astigmatism. We also evaluated the effects and complications associated with the procedure. RESULTS Degree of astigmatism in ptotic and fellow eyes was - 1.45 ± 0.59 D and - 0.66 ± 0.51 D before surgery. Ratio of severe astigmatism in ptotic and fellow eyes was 51.3 and 12.8%. The fellow eyes presented with with-the-rule astigmatism (WR; 71.8%) and against-the-rule astigmatism (AR; 20.5%) types, with no cases of oblique astigmatism (OA). Ptotic eyes demonstrated higher frequencies of AR (59.0%) and OA (10.2%) than did fellow eyes. Furthermore, the former showed increased astigmatism, followed by a gradual decrease at the 6-month, before significantly decreasing at the 1-year postoperatively. The ratio of postoperative AR and OA astigmatism cases in ptotic eyes decreased to 35.9 and 7.7% 1 month postoperatively. However, there was a postoperative increase in the WR ratio from 30.8 to 56.4% after 1 month. Kaplan-Meier survival analysis showed a success rate of 81.4% at 6 months and 62.9% at 12 months which was influenced by the following complications: suture reaction, epithelial keratopathy, infection and granuloma, lid lag, and recurrence. CONCLUSION Monocular congenital ptosis could develop severe astigmatism and higher frequency of AR or OA, early surgery may ameliorate astigmatic amblyopia.
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Affiliation(s)
- Yilan Tan
- grid.440223.30000 0004 1772 5147Department of Ophthalmology, Hunan Children’s Hospital, No. 86 Ziyuan Road, Changsha City, Hunan Province China
| | - Xilang Wang
- grid.440223.30000 0004 1772 5147Department of Ophthalmology, Hunan Children’s Hospital, No. 86 Ziyuan Road, Changsha City, Hunan Province China
| | - Jing Fu
- grid.440223.30000 0004 1772 5147Department of Ophthalmology, Hunan Children’s Hospital, No. 86 Ziyuan Road, Changsha City, Hunan Province China
| | - Jing Tang
- grid.440223.30000 0004 1772 5147Department of Ophthalmology, Hunan Children’s Hospital, No. 86 Ziyuan Road, Changsha City, Hunan Province China
| | - Jianbo Xiang
- grid.440223.30000 0004 1772 5147Department of Ophthalmology, Hunan Children’s Hospital, No. 86 Ziyuan Road, Changsha City, Hunan Province China
| | - Lijuan Tao
- grid.440223.30000 0004 1772 5147Department of Ophthalmology, Hunan Children’s Hospital, No. 86 Ziyuan Road, Changsha City, Hunan Province China
| | - Yulin Luo
- Department of Ophthalmology, Hunan Children's Hospital, No. 86 Ziyuan Road, Changsha City, Hunan Province, China.
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