[The functional investigation of vestibular balance and oculomotor function in 17 children with apparently congenital unilateral deafness and normal contralateral hearing].

Thorough study of vestibular and oculomotor function as well as radiological investigations were undertaken in 17 subjects with an apparently congenital unilateral cophosis. In 5 cases there was vetsibular hypovalence on the same side as the cophosis and bilateral impairment in 2 cases. No central abnormality was found. In one case tomograms showed atresia of the internal auditory meatus. The aetiopathogenesis of this labyrinthine involvement remains mysterious.