What is the role of electronystagmography in the workup of acquired nystagmus?

Updated: Oct 17, 2018
  • Author: Christopher M Bardorf, MD, MS; Chief Editor: Edsel Ing, MD, MPH, FRCSC  more...
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Electronystagmographs record eye muscle contractions to evaluate the direction and velocity of nystagmus. It may be used to evaluate low-amplitude nystagmus that is difficult to discern on examination. This study can help determine the type and velocity of the nystagmus, which is important in directing therapy.

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