[Relation between the level of serum vitamin A and visual function].
D000293:Adolescent; D000328:Adult; D002648:Child; D002675:Child, Preschool; D003623:Dark Adaptation; D005260:Female; D006801:Humans; D007231:Infant, Newborn; D008297:Male; D008875:Middle Aged; D009898:Optic Disk / Q000473:pathology; D011247:Pregnancy; D014785:Vision, Ocular / Q000502:physiology*; D014801:Vitamin A / Q000097:blood*; D014802:Vitamin A Deficiency / Q000097:blood / Q000503:physiopathology
D014801:Vitamin A