Abstract
Objective: This study was conducted to investigate the prevalence and associated factors of visual impairment among people aged 65 years or older in Taipei, Taiwan. Methods: This was a population-based, cross-sectional study. People aged 65 years or alder were enrolled for interviews and ophthalmic examinations in a visual healthcare survey in 2 districts of Taipei. The ophthalmic examinations included visual acuity testing, and slit-lamp and dilated retinal examinations for those presenting with visual acuity worse than 6/12. Visual impairment was defined as the best-corrected acuity of worse than 6/12 in the better-seeing eye. Results: Three hundred and sixty-seven elderly people were included in this study. The proportion of overall bilateral presenting acuity of worse than 6/12 was 7.9 %. Alter referral, we estimated the proportion of visual impairment among the elderly in Taipei to be 1.9%. Cataract-related disease was the most-frequent factor (51.3%) associated with visual impairment, followed by retinopathy-related disease with/without macular edema (33.3%). Multiple logistic regression revealed that retinopathy with/without macular edema was the most significantly associated facto r correlated with visual impairment among the elderly (odds ratio = 49.82, 95% confidence interval: 4.58-542.19). Conclusions: Although cataracts were the most frequent factor in visual impairment, we found that retinopathy with/without macular elderly was the most significantly associated factor related to visual impairment among elderly people in Taipei.
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