Incidence of colour blindness in Mysore City (India).
D000293:Adolescent; D000328:Adult; D000367:Age Factors; D002648:Child; D003117:Color Vision Defects / Q000453:epidemiology*; D005006:Ethnicity; D005260:Female; D005828:Genetics, Population; D006801:Humans; D007194:India; D008297:Male; D012737:Sex Factors; D012923:Social Class