These are the most common ocular oscillations, since they occur in normals, particularly in the elderly and in many neurological disorders. They fall under a category called “saccades intrusions.” A man with very subtle square waves is presented, followed by a woman with larger amplitude square waves. Subtle square wave are best seen during fundoscopy.
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Robert B. Daroff, MD, Professor of Neurology, School of Medicine, CASE Western Reserve University, University Hospitals - Case Medical Center
Spencer S. Eccles Health Sciences Library, University of Utah