Acquired Pendular Nystagmus with Voluntary Inhibition
Sueng Han Han ; Helen Lew ; Jae Sung Kim ; Jong Bok Lee ; Young Chul Choi
Yonsei Medical Journal, Vol.42(3) : 349~351, 2001
Yonsei Medical Journal
This report documents a case of voluntary inhibition of acquired pendular nystagmus after head trauma. A 30-year-old male developed oscillopsia and decreased visual acuity, as well as findings of acquired pendular nystagmus with voluntary inhibition after head trauma. The EOG finding was horizontal 18-20Hz bilateral symmetrical pendular nystagmus in all directions of gaze at near and distant fixation. Nystagmus did not change with 14 Prism Diopter base-out prisms on both eyes, but it was possible to abolish it intentionally. Baclofen and Clonazepam had no effect in improving the patient's symptoms and EOG finding.