Abstract | PURPOSE: To determine the prevalence of cataract surgery and the postoperative visual outcomes in rural central India. SETTING: Villages in rural central India. DESIGN: Cohort study. METHODS: The population-based Central India Eye and Medical Study examined the prevalence of surgical pseudophakia/ aphakia, the postoperative visual acuity, and the reasons for decreased postoperative vision in subjects aged 30+ in rural central India. Visual impairment was defined as (1) presenting visual acuity worse than 6/18 or (2) corrected distance visual acuity (CDVA) worse than 6/18. RESULTS: Of the 9392 eyes (99.7%) of 4711 subjects with available data on the lens status, 318 eyes (3.4%) (234 patients, 129 women) had had cataract surgery (5.0% ± 0.3%). Cataract surgery was significantly associated with age (P<.001), female sex (P = .008), shorter axial length (P<.001), and diabetes mellitus (P<.001). The prevalence of postoperative presenting visual impairment was 63% (201/318 eyes) and of postoperative CDVA impairment, 36% (117/318 eyes). The major cause of the former was incorrect intraocular lens (IOL) power (42%); the major causes of the latter were posterior capsule opacification (24%), surgical complications (21%), age-related macular degeneration (10.3%), other macular disorders (4.3%), corneal opacities (3.4%), and glaucoma (2.0%). Surgical complications were significantly more common in the aphakic group than in the pseudophakic group (46.4% versus 2.0%; P<.001). CONCLUSIONS: Approximately 5% of the central India population aged 30 years or older had had cataract surgery. Postoperative visual impairment was present in 2 of 3 eyes. The major reasons were incorrect IOL power and surgical complications. Improved IOL power calculations and improved surgical techniques may markedly improve postoperative outcome. FINANCIAL DISCLOSURE: No author has a financial or proprietary interest in any material or method mentioned.
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Authors | Vinay Nangia, Jost B Jonas, Rajesh Gupta, Anshu Khare, Ajit Sinha |
Journal | Journal of cataract and refractive surgery
(J Cataract Refract Surg)
Vol. 37
Issue 11
Pg. 1932-8
(Nov 2011)
ISSN: 1873-4502 [Electronic] United States |
PMID | 21908172
(Publication Type: Journal Article, Research Support, Non-U.S. Gov't)
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Copyright | Copyright © 2011 ASCRS and ESCRS. Published by Elsevier Inc. All rights reserved. |
Topics |
- Adult
- Age Distribution
- Aged
- Aged, 80 and over
- Aphakia, Postcataract
(epidemiology, physiopathology)
- Cataract
(epidemiology)
- Cataract Extraction
(statistics & numerical data)
- Cohort Studies
- Cross-Sectional Studies
- Female
- Humans
- Incidence
- India
(epidemiology)
- Male
- Middle Aged
- Postoperative Period
- Prevalence
- Pseudophakia
(epidemiology, physiopathology)
- Refractive Errors
(epidemiology)
- Rural Population
(statistics & numerical data)
- Visual Acuity
(physiology)
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