title: The refraction of Icelanders.
mesh_terms: D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000368:Aged; D001251:Astigmatism / Q000453:epidemiology; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D007055:Iceland; D007223:Infant; D008297:Male; D008875:Middle Aged; D009216:Myopia / Q000453:epidemiology; D012030:Refractive Errors / Q000453:epidemiology*; D012737:Sex Factors