title: Visual acuity and color blindness among Brazilian Cayapo Indians.
mesh_terms: D000293:Adolescent; D000328:Adult; D001938:Brazil; D002648:Child; D002675:Child, Preschool; D003117:Color Vision Defects / Q000453:epidemiology*; D005260:Female; D006801:Humans; D007199:Indians, South American; D007223:Infant; D008297:Male; D014787:Vision Tests; D014792:Visual Acuity