What is an ENG (Electronystagmography)/VNG (Videonystagmography)?
ENG/VNG is a non-invasive recording of eye movements to assess the vestibular/balance system. ENG uses recording electrodes placed on the forehead and around the eyes and measures changes in electrical potentials that occur when the eye muscles move the eyes. A newer system, often referred to as VNG, uses infrared video cameras, rather than electrodes, to record these eye movements. The VNG system allows for more precise measurements than the traditional electrode ENG’s. Capital Region Otolaryngology has been using a VNG system since 1998. What does the test involve? The ENG/VNG test battery is composed of three sections. The first portion involves watching and following a series of lights/dots as they move in different patterns. During this test, infrared video cameras will record your eye movements. The computer, along with the audiologist, will analyze these movements. The second portion of the test battery requires that you wear a special set of goggles that also contain infrared c
