Blindness and visual impairment in a region endemic for onchocerciasis in the Central African Republic.

Schwartz, E C; Huss, R; Hopkins, A; Dadjim, B; Madjitoloum, P; Hénault, C; Klauss, V · Br J Ophthalmol · 1997

cross_sectional · Level IV

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Abstract

A population based survey of blindness and visual impairment was conducted in the district of Bossangoa, Central African Republic. A total of 48 communities were randomly selected, and 6086 people examined. The prevalence of blindness (visual acuity in the better eye less than 3/60) was 2.2%, and visual impairment 3.0% (6/24 to 3/60 in the better eye). The major causes of blindness were onchocerciasis (73.1%), cataract (16.4%), trachoma (4.5%), and glaucoma (2.2%). Around 95.5% of all blindness could potentially have been prevented or treated. Ivermectin mass distribution is hoped to prevent 50% of all forms of visual loss in the future.

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