Central Lesion with Direction-Changing Nystagmus

Identifier: NewmanToker_Video2b_AICAstroke_DirChngNystag Title: Central Lesion with Direction-Changing Nystagmus Subject: Stroke; Nystagmus Description: With central causes of acute vestibular syndrome, it is not uncommon for the nystagmus to have a gaze-evoked component due to failure of gaze-holding circuits in the cerebellum or brainstem. In such instances, the nystagmus may reverse direction when the patient looks in the direction of the slow phase (Video 2b—direction-changing nystagmus; spontaneous left-beating nystagmus in primary and left gaze with reversal in right gaze in a patient with acute cerebellar infarction). Video 2a/b links to the open-access web site NOVEL (Neuro-Ophthalmology Virtual Education Library). This video is part of the Newman-Toker Collection in NOVEL, the Neuro-Ophthalmology Virtual Education Library. Please cite the source when using this video. NOVEL.utah.edu Copyright 2015. For further information regarding the rights to this collection, please visit http://library.med.utah.edu/NOVEL/about/copyright