Outcomes of cataract surgery in a rural and urban south Indian population
<b>Purpose:</b> To assess the visual outcome after cataract surgery in a south Indian population. <b> Materials and Methods:</b> Population-based cross-sectional study of subjects aged 40 years or more. Three thousand nine hundred and twenty-four rural subjects from 27 cont...
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| Format: | Article |
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Wolters Kluwer Medknow Publications
2010-01-01
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| Series: | Indian Journal of Ophthalmology |
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| Online Access: | http://www.ijo.in/article.asp?issn=0301-4738;year=2010;volume=58;issue=3;spage=223;epage=228;aulast=Vijaya |
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| author | Vijaya Lingam George Ronnie Rashima A Raju Prema Arvind Hemamalini Baskaran Mani Ve Ramesh |
| author_facet | Vijaya Lingam George Ronnie Rashima A Raju Prema Arvind Hemamalini Baskaran Mani Ve Ramesh |
| author_sort | Vijaya Lingam |
| collection | DOAJ |
| description | <b>Purpose:</b> To assess the visual outcome after cataract surgery in a south Indian population. <b> Materials and Methods:</b> Population-based cross-sectional study of subjects aged 40 years or more. Three thousand nine hundred and twenty-four rural subjects from 27 contiguous villages and 3850 urban subjects from five randomly selected divisions were studied. All subjects underwent a comprehensive ophthalmic examination that included visual acuity, refraction, slit-lamp biomicroscopy, applanation tonometry, gonioscopy, and dilated retinal examination. <b> Statistical Analysis:</b> Chi square test, <i>t</i> test and multivariate analysis were used.<b> Results:</b> Five hundred and twenty-eight (216 males, 312 females, 781 eyes) rural subjects (13.5%, 95% confidence interval (CI) 12.4% to 14.6%) and 406 (197 males, 209 females, 604 eyes) urban subjects (10.5%, 95% CI 9.6-11.5%) had undergone cataract surgery. Outcome of cataract surgery was defined based on visual acuity. Using best-corrected visual acuity for classification, the single most important cause for visual impairment was cystoid macular edema in the aphakic group and posterior capsule opacification in the pseudophakic group. Aphakia (visual acuity of < 20/60 to ≤ 20/400 - odds ratio (OR) 1.8; 95% CI 1.3 to 2.6%, visual acuity of < 20/400 - OR 6.2; 95% 4.0 to 9.8%), rural residence (visual acuity of < 20/60 to ≤ 20/400 - OR 3.2; 95% CI 2.2 to 4.5% and visual acuity of < 20/400 - OR OR 3.5; 95% CI 2.3 to 5.5%) were associated with visual impairment. The urban cataract-operated population had significantly more pseudophakics (<i> P</i> < 0.001), men (<i> P</i> = 0.02) and literates (<i> P</i> < 0.001). In the rural group the prevalence of cataract surgery (13.5% vs. 10.5%, <i> P</i> < 0.001) and number of people that had undergone cataract surgery within three years prior to examination (<i> P</i> < 0.001) were significantly greater. In 30% of rural and 16% of urban subjects uncorrected refraction was the cause of visual impairment. <b> Conclusions:</b> Surgery-related complications were major causes for visual acuity of < 20/60. |
| first_indexed | 2024-04-13T20:50:56Z |
| format | Article |
| id | doaj.art-85863d5c6c4944d09329ad82395161a5 |
| institution | Directory Open Access Journal |
| issn | 0301-4738 1998-3689 |
| language | English |
| last_indexed | 2024-04-13T20:50:56Z |
| publishDate | 2010-01-01 |
| publisher | Wolters Kluwer Medknow Publications |
| record_format | Article |
| series | Indian Journal of Ophthalmology |
| spelling | doaj.art-85863d5c6c4944d09329ad82395161a52022-12-22T02:30:31ZengWolters Kluwer Medknow PublicationsIndian Journal of Ophthalmology0301-47381998-36892010-01-01583223228Outcomes of cataract surgery in a rural and urban south Indian populationVijaya LingamGeorge RonnieRashima ARaju PremaArvind HemamaliniBaskaran ManiVe Ramesh<b>Purpose:</b> To assess the visual outcome after cataract surgery in a south Indian population. <b> Materials and Methods:</b> Population-based cross-sectional study of subjects aged 40 years or more. Three thousand nine hundred and twenty-four rural subjects from 27 contiguous villages and 3850 urban subjects from five randomly selected divisions were studied. All subjects underwent a comprehensive ophthalmic examination that included visual acuity, refraction, slit-lamp biomicroscopy, applanation tonometry, gonioscopy, and dilated retinal examination. <b> Statistical Analysis:</b> Chi square test, <i>t</i> test and multivariate analysis were used.<b> Results:</b> Five hundred and twenty-eight (216 males, 312 females, 781 eyes) rural subjects (13.5%, 95% confidence interval (CI) 12.4% to 14.6%) and 406 (197 males, 209 females, 604 eyes) urban subjects (10.5%, 95% CI 9.6-11.5%) had undergone cataract surgery. Outcome of cataract surgery was defined based on visual acuity. Using best-corrected visual acuity for classification, the single most important cause for visual impairment was cystoid macular edema in the aphakic group and posterior capsule opacification in the pseudophakic group. Aphakia (visual acuity of < 20/60 to ≤ 20/400 - odds ratio (OR) 1.8; 95% CI 1.3 to 2.6%, visual acuity of < 20/400 - OR 6.2; 95% 4.0 to 9.8%), rural residence (visual acuity of < 20/60 to ≤ 20/400 - OR 3.2; 95% CI 2.2 to 4.5% and visual acuity of < 20/400 - OR OR 3.5; 95% CI 2.3 to 5.5%) were associated with visual impairment. The urban cataract-operated population had significantly more pseudophakics (<i> P</i> < 0.001), men (<i> P</i> = 0.02) and literates (<i> P</i> < 0.001). In the rural group the prevalence of cataract surgery (13.5% vs. 10.5%, <i> P</i> < 0.001) and number of people that had undergone cataract surgery within three years prior to examination (<i> P</i> < 0.001) were significantly greater. In 30% of rural and 16% of urban subjects uncorrected refraction was the cause of visual impairment. <b> Conclusions:</b> Surgery-related complications were major causes for visual acuity of < 20/60.http://www.ijo.in/article.asp?issn=0301-4738;year=2010;volume=58;issue=3;spage=223;epage=228;aulast=VijayaCataract surgeryepidemiologyIndiapopulationvisual impairment |
| spellingShingle | Vijaya Lingam George Ronnie Rashima A Raju Prema Arvind Hemamalini Baskaran Mani Ve Ramesh Outcomes of cataract surgery in a rural and urban south Indian population Indian Journal of Ophthalmology Cataract surgery epidemiology India population visual impairment |
| title | Outcomes of cataract surgery in a rural and urban south Indian population |
| title_full | Outcomes of cataract surgery in a rural and urban south Indian population |
| title_fullStr | Outcomes of cataract surgery in a rural and urban south Indian population |
| title_full_unstemmed | Outcomes of cataract surgery in a rural and urban south Indian population |
| title_short | Outcomes of cataract surgery in a rural and urban south Indian population |
| title_sort | outcomes of cataract surgery in a rural and urban south indian population |
| topic | Cataract surgery epidemiology India population visual impairment |
| url | http://www.ijo.in/article.asp?issn=0301-4738;year=2010;volume=58;issue=3;spage=223;epage=228;aulast=Vijaya |
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