title: A study of the prevalence of spherical equivalent refractive states and anisometropia in Amerind populations in Ontario.
mesh_terms: D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000368:Aged; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D007198:Indians, North American; D007223:Infant; D004930:Inuit; D008297:Male; D008875:Middle Aged; D009864:Ontario; D012030:Refractive Errors / Q000175:diagnosis / Q000453:epidemiology* / Q000517:prevention & control; D012737:Sex Factors