Professor of Neurology, School of Medicine, CASE Western Reserve University, University Hospitals - Case Medical Center, Cleveland, Ohio
Subject
Macro Square Wave Jerks
Description
A woman with multiple sclerosis has a postural tremor and macro square wave jerks. These indicate a cerebellar outflow problem. Macro square wave jerks are somewhat of a misnomer since the eye movements are not entirely square; an alternate descriptor is "square wave pulses."