[The effect of nystagmus of labyrinth origin on the eye movement curve and optokinetic nystagmus].

The authors evaluated the interaction of follow-up eye movements, of the optokinetic nystagmus with the nystagmus of labyrinthine origin. In 15 subjects without data on an impaired vestibular system they observed during a calorically induced nystagmus follow-up eye movements and the optokinetic nystagmus. They confirmed changes of these curves which were closely associated with the direction of the nystagmus. The above changes can be used as one of the criteria for the differentiation of a spontaneous nystagmus of peripheral origin from central nystagmus.