Observations on the prevalence of amblyopia in African children.
D000293:Adolescent; D000550:Amblyopia / Q000150:complications / Q000453:epidemiology*; D044383:Black People; D002648:Child; D006801:Humans; D009216:Myopia / Q000150:complications; D012432:Rwanda; D013285:Strabismus / Q000209:etiology