Congenital homonymous hemianopia.

We reviewed eight cases of congenital homonymous hemianopia to emphasize the features that may help the clinician to diagnose a congenital disease. The patients were usually unaware of the visual field defect. The hemianopia was usually congruous when incomplete and the opticokinetic nystagmus had a normal pattern. Associated congenital ocular and neurologic abnormalities were common. Clinically recognizable atrophy or hypoplasia of the optic disk was found in all but one of the patients. There was often a history of neonatal or gestational difficulties followed by emotional, behavioral, and learning problems without mental retardation.