Definition of Spasmus nutans
Spasmus nutans is a disorder affecting infants and young children. It involves rapid, uncontrolled eye movements, head bobbing, and occasionally, abnormal positioning of the neck.
Causes, incidence, and risk factors
Most cases of spasmus nutans begin between age 4 months and 1 year. It usually goes away by itself in several months to years.
Signs and tests
A neurologic examination confirms the presence of the symptoms.
The benign form of spasmus nutans requires no treatment. If the spasmus nutans is caused by another condition, that condition must be treated appropriately.
Usually, this disorder goes away on its own without treatment.
David C. Dugdale, III, MD, Professor of Medicine, Division of General Medicine, Department of Medicine, University of Washington School of Medicine; Daniel B. Hoch, PhD, MD, Assistant Professor of Neurology, Harvard Medical School, Department of Neurology, Massachusetts General Hospital. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc. – 6/24/2009