[Oculomotor palsy due to aneurysm of internal carotid artery (author's transl)].

Sixty-five cases of berry aneurysm on the supraclinoid portion of internal carotid artery were reviewed on the viewpoint of oculomotor palsy. 27 of 65 patients (42%) showed oculomotor palsy. Most cases of complete oculomotor paralysis developed immediately after having subarachnoid hemorrhage, whereas the case of gradually developing oculomotor palsy tended to manifest diplopia first, and followed with blephaloptosis. The recovery rate from oculomotor palsy seemed to be correlated with the duration from the onset of symptom to surgery. The recovery from the complete oculomotor paralysis lasting for a long time seemed to be unsatisfactory unless the surgical direct procedure to the aneurysm was successful in early stage.