Spontaneous vertical eye movements associated with pontine lesions.

Ocular bobbing, dipping and "reversed" ocular dipping were observed and recorded in two patients presenting a severe neurological symptomatology: quadruplegia and coma in one and locked-in syndrome in the other. CT scan showed a pontine infarction in both these patients. This is the first time that the ocular dipping and "reversed" ocular dipping are related to such an anatomic structure.