title: Acquired pendular nystagmus with voluntary inhibition.
abstract: 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 18-20 Hz 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.
authors.affiliation: Department of Ophthalmology, Yonsei University College of Medicine and Institute of Vision Research, Seoul, Korea. shhan222@yumc.yonsei.ac.kr
authors.forename: S H
authors.initials: SH
authors.lastname: Han
authors.forename: H
authors.initials: H
authors.lastname: Lew
authors.forename: Y C
authors.initials: YC
authors.lastname: Choi
authors.forename: J B
authors.initials: JB
authors.lastname: Lee
authors.forename: J S
authors.initials: JS
authors.lastname: Kim
mesh_terms: D000328:Adult; D004585:Electrooculography; D006801:Humans; D008297:Male; D009759:Nystagmus, Pathologic / Q000209:etiology* / Q000503:physiopathology; D005680:gamma-Aminobutyric Acid / Q000502:physiology
chemical_list: D005680:gamma-Aminobutyric Acid