title: Refractive error in Yugoslav urban children aged between 3 and 7 years.
abstract: A sample of 583 Yugoslav urban children aged between 3 and 7 years, was tested for refraction. It was found that hypermetropia decreased between the ages of 3 and 6, but increased in the seventh year confirming other studies in this area.
mesh_terms: D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D006956:Hyperopia / Q000453:epidemiology; D008297:Male; D009216:Myopia / Q000453:epidemiology; D012029:Refraction, Ocular; D015022:Yugoslavia