Superior Oblique Myokymia;
Trochlear Nerve Disease;
This eye movement abnormality presents with intermittent monocular oscillopsia, often following a particular eye movement or head tilt. The examiner will often miss the abnormality unless it can be provoked. It represents a microtremor of a superior oblique muscle and usually responds to an anticonvulsant, particularly carbamazapine. A patient with this condition in the right eye is shown.
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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