What is assessed with electronystagmography (ENG) oculomotor evaluation?

Updated: Aug 06, 2019
  • Author: Angela G Shoup, PhD; Chief Editor: Arlen D Meyers, MD, MBA  more...
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Answer

Answer

The visual system provides information about whether the environment is stationary or mobile. Stabilization of visual information is accomplished by foveation. The visual system is subserved by the motor system, the premotor system, and the command (control) eye movement system, which controls saccadic eye movements, pursuit, and vergence.

The oculomotor portion of ENG assesses eye movement function for the various command eye movement systems in the absence of vestibular stimulation. For oculomotor evaluation, the patient is presented with various visual stimuli while his or her eye movements are recorded.


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