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Electronystagmography (ENG) is a computerized test of balance system function. It is used when assessing complaints of dizziness or vertigo. It measures the presence, intensity, and direction of eye movements during specific types of stimulation and takes about 1.5 to 2 hours to complete.
The test involves the monitoring of eye movements when wearing special goggles equipped with small cameras. Electrodes are placed around the eye to record electrical activity.
A standard ENG test battery consists of 3 parts: