The visually handicapped child. The scope of the problem.
D001720:Birth Injuries / Q000150:complications; D001925:Brain Damage, Chronic / Q000150:complications; D002675:Child, Preschool; D006801:Humans; D006849:Hydrocephalus / Q000150:complications; D007223:Infant; D007231:Infant, Newborn; D009896:Optic Atrophy / Q000209:etiology