The incidence of cataract and its clinical presentation.
D000293:Adolescent; D000328:Adult; D000368:Aged; D002386:Cataract / Q000175:diagnosis / Q000453:epidemiology*; D002387:Cataract Extraction; D004739:England; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged