title: [State of visual functions of Leningrad preschool children].
mesh_terms: D001251:Astigmatism / Q000453:epidemiology; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D009216:Myopia / Q000453:epidemiology; D011247:Pregnancy; D012426:Russia; D013285:Strabismus / Q000453:epidemiology; D014786:Vision Disorders / Q000453:epidemiology*; D014785:Vision, Ocular; D014792:Visual Acuity
vernacular_title: Sostoianie zritel'nykh funktsiĭ u doshkol'nikov Leningrada.