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VNG Testing

We strongly recommend that you have someone accompany you to the appointment should you experience dizziness or other symptoms from the testing. 

Balance Assessments & Dizziness Evaluations

Our Doctors of Audiology and Physical Therapy will utilize state-of-the-art equipment to diagnose and treat balance and vestibular disorders. The vestibular system is located in the inner ear and is responsible for balance. A disorder in the vestibular system causes difficulties with balance and movement, often resulting in dizziness and/or vertigo. Our Doctors of Audiology and Physical Therapy are specifically trained in treating imbalance and combating dizziness in patients. Learn More about dizziness here. 

VNG Test

Part of our Vestibular Assessment Includes

The Videonystagmography VNG is a 4 part test that allows for a more in-depth look at the Vestibular System.  It is used to assess and diagnose vestibular disorders, helping to find solutions for dizziness, vertigo, and balance issues.

  1. Positional Testing: The positional portion of the test is to see if patients have BPPV and an involuntary type of eye movements called nystagmus. It involves moving the head and body in different positions to see if it causes nystagmus. 

  2. Ocular Motility Testing: Tracks how how well the Vestibular Systems are working together.  How wells the eyes can follow objects.

  3. Cholorics: The Choloric testing looks to see if your Vestibular System is working properly and symmetrically. Warm and cool air will be put into each ear which tests for inner ear nerve damage. Your provider will also check to see if one ear responds differently from the other. If one ear is damaged, the response will be weaker than the other, or there may be no response at all.

  4. Posturography: Posturography tests your three systems of balance which are: somatosensory, vestibular and oculomotor to see what area is affecting your balance.

You made need a VNG if you feel:

  • Dizziness / Imbalance

  • Ringing in the ears (tinnitus)

  • Confusion or involuntary eye movements









Nerves and Muscles



All parts of the Triangle have to work in order for your Vestibular System to function properly. 

Important Guidelines for your VNG Test

  • Do not take any medication for 48 hours prior to the test. This WILL impact the test results, and we WILL need to RESCHEDULE the appointment. "Maintenance" medications are not required to be stopped (i.e., blood pressure, heart medication, diabetes meds, or anything your physician deems necessary.) Consult your physician before stopping any medications. 

  • Do not wear any perfume or makeup (especially eye makeup) the day of the test. Long hair should be pulled up out of the face. Do NOT wear contact lenses. 

  • Wear loose fitting, comfortable clothing.

  • Do not drink any alcohol for 48 hours prior to the test. Do not smoke the day of the test. 

  • Do not drink any caffeinated beverages (i.e coffee, soda, energy drinks, or tea) for 12 hours prior to the test. 

  • Do not eat for 4 hours prior to the test. If absolutely necessary for medical reasons, you may eat a light meal.

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