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Prevalence and causes of avoidable blindness and severe visual impairment in a tribal district of Maharashtra, India.

This article is from Oman Journal of Ophthalmology , volume 4 . Abstract Background:: We present the outcomes of a survey conducted in Nandurbar, a tribal district of Maharashtra, India. It was based on “Rapid Assessment for Avoidable Blindness” methodology and conducted in 2009 in Nandurbar, a tribal district of Maharashtra, India. Materials and Methods:: We examined persons of 50 years and older ages. Ophthalmic assistants noted the distant vision [best corrected vision (BCV) and as presented]. Ophthalmologist examined eyes of persons with vision less than 6/18. The principal cause of impairment in each eye and the most “preventable” or “treatable” cause were assigned. We calculated the prevalence rates of bilateral blindness, severe visual impairment (SVI), and moderate visual impairment (MVI). Result:: We examined 2,005/2,300 persons (response rate 87.2%). The prevalence of blindness, SVI, and MVI for the BCV was 1.63% (95% CI 1.11–2.15), 5.93% (95% CI 4.96–6.90), and 14.6% (95% CI 13.2–16.1), respectively. The prevalence of blindness, SVI, and MVI for the presented vision was 1.87% (1.32–2.42), 6.72% (95% CI 5.70–7.74), and 19% (95% CI 17.4–20.6), respectively. Unoperated cata

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