"Saccadic nystagmus" in cerebellar cortical atrophy
Related Experiment Video
Updated: Nov 4, 2026

Recording Horizontal Saccade Performances Accurately in Neurological Patients Using Electro-oculogram
Published on: March 13, 2018
Abstract:
An ocular dyskinesia designated "saccadic nystagmus" was observed in a patient with cerebellar cortical atrophy. Saccadic nystagmus is a sustained ocular dyskinesia present during visual fixation and abolished by eye closure. It is difficult to distinguish visually from either pendular or jerk nystagmus without eye movement recordings. The oscillations are horizontal and rapid and may be influenced by direction of gaze. Caloric nystagmus (eye closed) and optokinetic nystagmus were normal in our patient. Visual fixation abolished caloric nystagmus, which was replaced by saccadic nystagmus.
More Related Videos
Related Concept Videos
Glaucoma: Overview
Major Somatic Sensory Pathways
Visual Agnosia
Parkinson Disease ll: Pathophysiology

