Effective August 5, 2024, The Centers for Advanced ENT Care – Siegel, Bosworth, and Sorensen Division will be transitioning from Phreesia, Allscripts/FollowMyHealth to Healow as part of our overall transition to a new electronic health records system - eClinicalWorks. To learn more about this important update, click the link for "Patient Portal and Online Registration Updates" under Patient Info.

Menu

Top

ENT Care, Rockville, MD - Siegel, Bosworth and Sorensen Division

    • Pay OnlinePatient PortalAppointment/Cancellation Request
    Hours: 8AM to 4PM Mon - Fri15204 Omega Dr., Suite 310, Rockville, MD 20850 Directions(240) 361-9000(240) 361-9001

    Videonystagmography (VNG)

    You are here: Home / Services / Therapy and Balance Center / Videonystagmography (VNG)

    Videonystagmography (VNG) is a procedure that tests inner ear and central motor balance functions. VNG testing is used to determine if a vestibular (inner ear) disease may be causing a balance or dizziness problem, and is one of the only tests available today that can decipher between a unilateral (one ear) and bilateral (both ears) vestibular loss.  VNG testing is a series of tests designed to document a persons ability to follow visual objects with their eyes and how well the eyes respond to information from the vestibular system.

    This test also addresses the functionality of each ear and if a vestibular deficit may be the cause of a dizziness or balance problem.  To monitor the movements of the eyes, infrared goggles are placed around the eyes to record eye movements during testing.  VNG testing is non-invasive, and only minor discomfort is felt by the patients during testing as a result of wearing goggles.  Appointments usually last about 45 minutes to 1 hour, and testing is covered by all insurances.

    There a 4 main parts to a VNG test:

    1.  Ocular Mobility – You will be asked to have your eyes follow objects that jump from place to place, stand still, or move smoothly.  The technician will be looking for any slowness or inaccuracies in your ability to follow visual targets.  This may indicate a central or neurological problem, or possibly a problem in the pathway connecting the vestibular system to the brain.
    2. Optokinetic Nystagmus – You will be asked to view a large, continuously moving visual image to see if your eyes can appropriately track these movements.  Like the ocular mobility tests, the technician will be looking for any slowness or inaccuracies in your ability to follow visual targets.  This may indicate a central or neurological problem, or possibly a problem in the pathway connecting the vestibular system to the brain.
    3.  Positional Nystagmus – The technician will move your head and body into various positions to make sure that there are no inappropriate eye movements (nystagmus) when your head is in different positions.  This test is looking at your inner ear system and the condition of the endolymph fluid in your semi-circular canals.  The technician is verifying that small calcium carbonate particles called otoconia are not suspended in the fluid and causing a disturbance to the flow of the fluid.
    4. Caloric testing – The technician will stimulate both of your inner ears (one at a time) with warm and then cold air.  They will be monitoring the movements of your eyes using goggles to make sure that both of your ears can sense this stimulation.  This test will confirm that your vestibular system for each ear is working and responding to stimulation.  This test is the only test available that can decipher between a unilateral and bilateral loss.

    Reference:  National Dizzy and Balance Center

    Testimonials

    What Our Patients are Saying...

    Take a moment to leave us a review or read some of our current testimonials from our satisfied patients.

    View All Testimonials

    I’ve been seeing Dr. Siegel for more than 15 years. He has completed surgery for me, and been available to me consistently since then – more than any other ENT I have dealt with in 30 years. As someone with chronic sinusitis, I recommend him highly. He is not only a great doctor, but someone […]

    Lauren M

    Outstanding ! Felt efficiency as soon as I walked in the door. Practitioner and team were competent kind and compassionate. Check out was as strong as check in. Best experience I’ve had in a doctors office in years. Highly highly recommend

    Lisa Ross

    I never had a good experience with physical therapy before I’ve met Hillary. I have some TMJ problems with my jaws. Hillary is an excellent therapist and perfectly professional. After her therapy I feel much, much better! I would highly recommend her to anyone!

    Ekaterina Stenko

    We had a wonderful experience from meeting Doctor Bosworth to our check up after surgery and everything in between. He and his team were sooo kind and supportive throughout the whole process. As one could guess , when you hear your 4 year old has to have surgery and will be put to sleep it’s […]

    Caitlin Hurley

    Kaitlin did my hearing test and Eleni was my provider but I also had the pleasure of interacting with Abe, Jaida, and Katie. Everyone was thorough, explained everything, and was reassuring. It took out a lot of the anxiety that I usually experience. Thank you to all

    Jeanette Roman

    I self-referred here based on reviews and I was very happy. Making an appointment was easy, I was taken in on time, and Alyssa did a great job with the stubborn ear wax that staff at my PCP office could not remove. Alyssa was also very informative and made me feel comfortable and well cared […]

    Marc Weinshenker