Professor of Neurology, School of Medicine, CASE Western Reserve University, University Hospitals - Case Medical Center, Cleveland, Ohio
Subject
Upbeat Nystagmus
Description
A female patient with upbeating nystagmus that increases in amplitude with upward gaze is shown. This type of nystagmus commonly occurs from a lesion involving one of three regions: the ponto-medullary junction, ponto-mesencephalic junction, and the anterior cerebellum. Etiologies of these lesions are noted.