Videoelectronystagmography (VNG)


A videoelectronystagmography (VNG) exam provides information on the functionality of an individual’s vestibular system (inner ear), the system that aids in balance. Eye tracking goggles are utilized to analyze eye movement in response to a series of moving lights in both the upright and laid back positions.

What is it?

A VNG is an examination that assesses the condition of the vestibular system, the system that helps control eye movement and balance. During this noninvasive examination, goggles are placed over the eyes to track eye movement. These movements are tracked as a moving light is displayed. This exercise is performed in both the sitting and laying positions to detect abnormal eye movement and slow acclamation.

What should I do to prepare?

There is no preparation for this noninvasive evaluation other than scheduling an appointment for the examination.

What happens during the process?

During a VNG, eye tracking goggles are worn and utilized to test oculomotor functioning at varying positions. The movements of the eye are recorded by these goggles and analyzed using computer software. The results of this evaluation can determine if there is an issue the functionality of the inner ear that is impairing balance.

What are the risks and potential complications?

There are no significant risks or complications associated with this noninvasive evaluation.


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