In order to determine the root cause of dizziness, VNG testing is ordered by your doctor. Videonystagmography (VNG) is a vestibular assessment using technology to test the inner ear and central motor functions. Infrared goggles are used in order to trace eye movements during testing which includes visual stimulation and positional changes. During the test you will be wearing an infrared camera on a facemask. Please refrain from wearing make-up or face cream as it can interfere with the camera.
You will be instructed to look at objects and move your body and head in various positions. Small amounts of cool and warm air will also be presented into your ear canals. Testing is noninvasive but can produce the sensation of vertigo which should dissipate fairly quickly. Some patients experience nausea in conjunction with their symptoms; therefore we recommend you refrain from eating or drinking at least 3 hours prior to your test. For patients needing to eat for medical reasons, we recommend a light meal. For your comfort, loose fitting clothing is recommended and skirts should not be worn for modesty. The procedure will take 1 – 1 1/2 hours to complete. Due to the length of testing it is important that we start on time. Anyone arriving more than 15 minutes late will be rescheduled. We recommend that you arrive early to allow time for parking.
Contact us at Physicians Hearing Care if you have questions about VNG testing