[The comparison of visually handicapped in Okinawa and Tokyo].
D000293:Adolescent; D000328:Adult; D000368:Aged; D002648:Child; D002675:Child, Preschool; D006233:Persons with Disabilities; D005260:Female; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D007564:Japan; D008297:Male; D008875:Middle Aged; D014041:Tokyo; D014481:United States; D014786:Vision Disorders / Q000151:congenital / Q000453:epidemiology*