Epidemiological study on causes of blindness among students of a school for blind in Ethiopia.
D000293:Adolescent; D000328:Adult; D001766:Blindness / Q000453:epidemiology* / Q000209:etiology / Q000517:prevention & control; D002648:Child; D002675:Child, Preschool; D004812:Epidemiologic Methods; D005002:Ethiopia; D005260:Female; D006801:Humans; D008297:Male; D012574:Schools