Problems, care, and rehabilitation of blind and almost blind.
D000293:Adolescent; D000328:Adult; D000368:Aged; D001766:Blindness / Q000534:rehabilitation* / Q000628:therapy; D002648:Child; D005260:Female; D006801:Humans; D008297:Male; D008722:Methods; D008875:Middle Aged; D012106:Research; D013223:Statistics as Topic; D014481:United States; D014786:Vision Disorders / Q000534:rehabilitation* / Q000628:therapy