Oscillopsia: A Common Symptom of Bilateral Vestibular Loss
Alternative Title
Video 5.5 Head movement dependent (‘walking') oscillopsia - a common symptom of bilateral vestibular loss from Neuro-Ophthalmology and Neuro-Otology Textbook
Creator
Daniel R. Gold, DO
Affiliation
(DRG) Departments of Neurology, Ophthalmology, Neurosurgery, Otolaryngology - Head & Neck Surgery, Emergency Medicine, and Medicine, The Johns Hopkins School of Medicine, Baltimore, Maryland
Subject
VOR Abnormal; HIT Abnormal
Description
๐ข๐ฟ๐ถ๐ด๐ถ๐ป๐ฎ๐น ๐๐ฒ๐๐ฐ๐ฟ๐ถ๐ฝ๐๐ถ๐ผ๐ป: This video is an example of what a patient with bilateral vestibular loss experiences while walking. Without a VOR, there is no mechanism to ensure retinal stability of the world with each head movement, and oscillopsia (illusion of movement of the stationary environment) is the result. Jumpy vision during ambulation or when driving on a bumpy road for example is highly suggestive of bilateral vestibular loss, and head impulse testing and evaluation of the VOR are warranted. Oscillopsia in these patients is not spontaneous (as it would be with nystagmus). To see the eye movements of a patient with abnormal VOR in addition to the oscillopsia, view item: https://collections.lib.utah.edu/details?id=1213435 ๐ก๐ฒ๐๐ฟ๐ผ-๐ผ๐ฝ๐ต๐๐ต๐ฎ๐น๐บ๐ผ๐น๐ผ๐ด๐ ๐ฎ๐ป๐ฑ ๐ก๐ฒ๐๐ฟ๐ผ-๐ผ๐๐ผ๐น๐ผ๐ด๐ ๐ง๐ฒ๐ ๐๐ฏ๐ผ๐ผ๐ธ ๐๐ฒ๐ด๐ฒ๐ป๐ฑ: This video is an example of what a patient with bilateral vestibular loss experiences while walking. Without a vestibulo-ocular reflex (VOR), there is no mechanism to ensure retinal stability of the world with each head movement, and oscillopsia (illusion of movement of the stationary environment) is the result. Jumpy vision during ambulation or when driving on a bumpy road for example is highly suggestive of bilateral vestibular loss, and head impulse testing and evaluation of the VOR are warranted. Head movement independent (โsitting') oscillopsia is typically due nystagmus or saccadic intrusions/ oscillations. https://collections.lib.utah.edu/details?id=1213442