Outcomes of cataract surgery in a rural and urban south Indian population.
Indian J Ophthalmol
;
2010 May; 58(3): 223-228
Article
Dans Anglais
| IMSEAR
| ID: sea-136059
ABSTRACT
Purpose:
To assess the visual outcome after cataract surgery in a south Indian population. Materials andMethods:
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. StatisticalAnalysis:
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.
Texte intégral:
Disponible
Indice:
IMSEAR (Asie du Sud-Est)
Sujet Principal:
Population rurale
/
Population urbaine
/
Femelle
/
Humains
/
Mâle
/
Extraction de cataracte
/
Acuité visuelle
/
Résultat thérapeutique
/
Inde
/
Adulte d'âge moyen
Type d'étude:
Étude observationnelle
/
Facteurs de risque
Pays comme sujet:
Asie
langue:
Anglais
Texte intégral:
Indian J Ophthalmol
Année:
2010
Type:
Article
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