Outcomes of cataract surgery in a rural and Urban South Indian population

Lingam Vijaya, Ronnie George, A. Rashima, Prema Raju, Hemamalini Arvind, Mani Baskaran, Ramesh S. Ve

Research output: Contribution to journalArticle

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Abstract

Purpose: To assess the visual outcome after cataract surgery in a south Indian population. Materials and Methods: 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. Statistical Analysis: Chi square test, t test and multivariate analysis were used. Results: 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 ( P < 0.001), men ( P = 0.02) and literates ( P < 0.001). In the rural group the prevalence of cataract surgery (13.5% vs. 10.5%, P < 0.001) and number of people that had undergone cataract surgery within three years prior to examination ( P < 0.001) were significantly greater. In 30% of rural and 16% of urban subjects uncorrected refraction was the cause of visual impairment. Conclusions: Surgery-related complications were major causes for visual acuity of < 20/60.

Original languageEnglish
Pages (from-to)223-228
Number of pages6
JournalIndian Journal of Ophthalmology
Volume58
Issue number3
DOIs
Publication statusPublished - 01-05-2010

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Cataract
Visual Acuity
Odds Ratio
Population
Confidence Intervals
Vision Disorders
Gonioscopy
Capsule Opacification
Aphakia
Macular Edema
Manometry
Chi-Square Distribution
Multivariate Analysis
Cross-Sectional Studies

All Science Journal Classification (ASJC) codes

  • Ophthalmology

Cite this

Vijaya, Lingam ; George, Ronnie ; Rashima, A. ; Raju, Prema ; Arvind, Hemamalini ; Baskaran, Mani ; Ve, Ramesh S. / Outcomes of cataract surgery in a rural and Urban South Indian population. In: Indian Journal of Ophthalmology. 2010 ; Vol. 58, No. 3. pp. 223-228.
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abstract = "Purpose: To assess the visual outcome after cataract surgery in a south Indian population. Materials and Methods: 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. Statistical Analysis: Chi square test, t test and multivariate analysis were used. Results: 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 ( P < 0.001), men ( P = 0.02) and literates ( P < 0.001). In the rural group the prevalence of cataract surgery (13.5{\%} vs. 10.5{\%}, P < 0.001) and number of people that had undergone cataract surgery within three years prior to examination ( P < 0.001) were significantly greater. In 30{\%} of rural and 16{\%} of urban subjects uncorrected refraction was the cause of visual impairment. Conclusions: Surgery-related complications were major causes for visual acuity of < 20/60.",
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Vijaya, L, George, R, Rashima, A, Raju, P, Arvind, H, Baskaran, M & Ve, RS 2010, 'Outcomes of cataract surgery in a rural and Urban South Indian population', Indian Journal of Ophthalmology, vol. 58, no. 3, pp. 223-228. https://doi.org/10.4103/0301-4738.62648

Outcomes of cataract surgery in a rural and Urban South Indian population. / Vijaya, Lingam; George, Ronnie; Rashima, A.; Raju, Prema; Arvind, Hemamalini; Baskaran, Mani; Ve, Ramesh S.

In: Indian Journal of Ophthalmology, Vol. 58, No. 3, 01.05.2010, p. 223-228.

Research output: Contribution to journalArticle

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T1 - Outcomes of cataract surgery in a rural and Urban South Indian population

AU - Vijaya, Lingam

AU - George, Ronnie

AU - Rashima, A.

AU - Raju, Prema

AU - Arvind, Hemamalini

AU - Baskaran, Mani

AU - Ve, Ramesh S.

PY - 2010/5/1

Y1 - 2010/5/1

N2 - Purpose: To assess the visual outcome after cataract surgery in a south Indian population. Materials and Methods: 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. Statistical Analysis: Chi square test, t test and multivariate analysis were used. Results: 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 ( P < 0.001), men ( P = 0.02) and literates ( P < 0.001). In the rural group the prevalence of cataract surgery (13.5% vs. 10.5%, P < 0.001) and number of people that had undergone cataract surgery within three years prior to examination ( P < 0.001) were significantly greater. In 30% of rural and 16% of urban subjects uncorrected refraction was the cause of visual impairment. Conclusions: Surgery-related complications were major causes for visual acuity of < 20/60.

AB - Purpose: To assess the visual outcome after cataract surgery in a south Indian population. Materials and Methods: 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. Statistical Analysis: Chi square test, t test and multivariate analysis were used. Results: 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 ( P < 0.001), men ( P = 0.02) and literates ( P < 0.001). In the rural group the prevalence of cataract surgery (13.5% vs. 10.5%, P < 0.001) and number of people that had undergone cataract surgery within three years prior to examination ( P < 0.001) were significantly greater. In 30% of rural and 16% of urban subjects uncorrected refraction was the cause of visual impairment. Conclusions: Surgery-related complications were major causes for visual acuity of < 20/60.

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Vijaya L, George R, Rashima A, Raju P, Arvind H, Baskaran M et al. Outcomes of cataract surgery in a rural and Urban South Indian population. Indian Journal of Ophthalmology. 2010 May 1;58(3):223-228. https://doi.org/10.4103/0301-4738.62648