What is the role of the pursuit eye-movement test in the diagnosis of dizziness, vertigo, and imbalance?

Updated: Mar 13, 2017
  • Author: Hesham M Samy, MD, PhD; Chief Editor: Robert A Egan, MD  more...
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Answer

Pursuit eye movements prevent slipping of an image on the retina while the patient is tracking moving objects. The neural substrate of the pursuit system includes the parietal cortex, the brainstem reticular formation, the cerebellum, the vestibular nuclei, and the oculomotor nuclei. Pursuit abnormalities occur with brainstem and cerebellar lesions.


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