title: Delayed visual maturation.
abstract: Three infants, recognised as blind during the first 4 months of life, were found to be normal on neurological and ophthalmological examinations. Visual electro-diagnostic studies showed normal retinal responses, but delayed conduction velocities and impaired visually-evoked responses over the occipital cortex. After age 6 months, normal vision developed gradually and all abnormalities disappeared.
mesh_terms: D002658:Developmental Disabilities / Q000175:diagnosis*; D005074:Evoked Potentials, Visual; D006801:Humans; D007223:Infant; D008297:Male; D010775:Photic Stimulation; D014786:Vision Disorders / Q000175:diagnosis*