Periodic Alternating Nystagmus
Channel: Moran CORE
Date: 2018-02-08

Example of a patient with periodic alternating nystagmus, showing an alternation between left-beats and right-beats as the patient maintains forward gaze. Nystagmus maintain horizontal direction regardless of position of gaze. 

Kathleen B. Digre; Daniel Jacobson, MD; 
Moran Eye Center Neuro-Ophthalmology Collection 2-12
Kathleen B. Digre, MD, Copyright 2015 From Moran CORE Collection: http://morancore.utah.edu