{"title":"Optical performance of enhanced monofocal intraocular lens in presence of low degree of corneal astigmatism.","authors":"Neha Neha, Aafreen Bari, Namrata Sharma, Rajesh Sinha, Prafulla Kumar Maharana, Manpreet Kaur, Jeewan Singh Titiyal, Tushar Agarwal","doi":"10.4103/IJO.IJO_1639_24","DOIUrl":null,"url":null,"abstract":"<p><strong>Purpose: </strong>To evaluate the optical performance of an enhanced monofocal intraocular lens (IOL) in the presence of cataract and a low degree of corneal astigmatism.</p><p><strong>Methods: </strong>A prospective, comparative, nonrandomized study was conducted to compare the results of an enhanced monofocal IOL with a standard monofocal IOL in cases of cataract with corneal astigmatism ≥0.75 D and <1.5 D. A total of 38 patients meeting the inclusion criteria were enrolled in the study. Group A patients (19) were implanted with enhanced monofocal IOLs bilaterally, and Group B patients (19) received standard monofocal IOLs bilaterally. Both groups underwent standard procedures (phacoemulsification with IOL implantation in the capsular bag), and final outcomes were analyzed after a 3-month follow up. A P value < 0.05 was considered significant.</p><p><strong>Results: </strong>The binocular uncorrected intermediate visual acuity, near visual acuity, and contrast sensitivity at 3 months was better in the enhanced monofocal group compared to the standard monofocal group (P < 0.001, P < 0.001, P = 0.02 respectively). The binocular uncorrected distance visual acuity at 3 months was comparable between the groups (P = 0.2); however, a higher number of cases attained visual acuity better than 6/9 in the enhanced monofocal IOL group. Post-operative higher-order aberrations were comparable between the groups. (P = 0.125).</p><p><strong>Conclusion: </strong>Bilateral implantation of enhanced monofocal IOLs in patients with cataract and low degrees of corneal astigmatism demonstrates better tolerance to astigmatism compared to standard monofocal IOLs. In cases with <1 D corneal astigmatism, the enhanced monofocal IOL is the preferred choice over the standard monofocal IOL.</p>","PeriodicalId":13329,"journal":{"name":"Indian Journal of Ophthalmology","volume":"73 3","pages":"377-381"},"PeriodicalIF":2.1000,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Indian Journal of Ophthalmology","FirstCategoryId":"3","ListUrlMain":"https://doi.org/10.4103/IJO.IJO_1639_24","RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"2025/2/26 0:00:00","PubModel":"Epub","JCR":"Q2","JCRName":"OPHTHALMOLOGY","Score":null,"Total":0}
引用次数: 0
Abstract
Purpose: To evaluate the optical performance of an enhanced monofocal intraocular lens (IOL) in the presence of cataract and a low degree of corneal astigmatism.
Methods: A prospective, comparative, nonrandomized study was conducted to compare the results of an enhanced monofocal IOL with a standard monofocal IOL in cases of cataract with corneal astigmatism ≥0.75 D and <1.5 D. A total of 38 patients meeting the inclusion criteria were enrolled in the study. Group A patients (19) were implanted with enhanced monofocal IOLs bilaterally, and Group B patients (19) received standard monofocal IOLs bilaterally. Both groups underwent standard procedures (phacoemulsification with IOL implantation in the capsular bag), and final outcomes were analyzed after a 3-month follow up. A P value < 0.05 was considered significant.
Results: The binocular uncorrected intermediate visual acuity, near visual acuity, and contrast sensitivity at 3 months was better in the enhanced monofocal group compared to the standard monofocal group (P < 0.001, P < 0.001, P = 0.02 respectively). The binocular uncorrected distance visual acuity at 3 months was comparable between the groups (P = 0.2); however, a higher number of cases attained visual acuity better than 6/9 in the enhanced monofocal IOL group. Post-operative higher-order aberrations were comparable between the groups. (P = 0.125).
Conclusion: Bilateral implantation of enhanced monofocal IOLs in patients with cataract and low degrees of corneal astigmatism demonstrates better tolerance to astigmatism compared to standard monofocal IOLs. In cases with <1 D corneal astigmatism, the enhanced monofocal IOL is the preferred choice over the standard monofocal IOL.
期刊介绍:
Indian Journal of Ophthalmology covers clinical, experimental, basic science research and translational research studies related to medical, ethical and social issues in field of ophthalmology and vision science. Articles with clinical interest and implications will be given preference.