What is a vngeng test

VNG testing is more consistent and accurate than the old ENG method, and it offers patients a much more comfortable experience. During your VNG tests, video goggles and infrared cameras will measure your eye movements during four different types of testing.

The procedure typically takes less than an hour and a half to complete and is noninvasive and painless, though brief episodes of vertigo may occur. The four main parts of VNG testing are:. Skip to content In the past, electronystagmography ENG was a commonly administered set of vestibular tests administered to patients experiencing dizziness. This is to keep your mind alert and busy during the testing. Another obverses eye movements as your head is positioned in different directions.

During the caloric test cool and warm air is blown into your ear canal and onto the ear drum. Changes in the air temperature stimulate the inner ear and test the eye movement nystagmus response generated by the stimulation. Why do I need a VNG? Other symptoms of a vestibular disorder include: Nystagmus involuntary eye movements that go side to side or up and down Ringing in the ears tinnitus Feeling of fullness or pressure in the ear Confusion.

What happens during a VNG? A VNG may be done by a primary health care provider or one of the following types of specialists: An audiologist, a health care provider who specializes in diagnosing, treating, and managing hearing loss An otolaryngologist ENT , a doctor specializing in treating diseases and conditions of the ears, nose, and throat A neurologist, a doctor specializing in diagnosing and treating disorders of the brain and nervous system During a VNG test, you will sit in a dark room and wear special goggles.

There are three main parts to a VNG: Ocular testing. During this part of the VNG, you will watch and follow moving and nonmoving dots on a light bar. Positional testing. During this part, your provider will move your head and body in different positions.

Your provider will check if this movement causes nystagmus. Caloric testing. During this part, warm and cool water or air will be put in each ear. When cold water or air enters the inner ear, it should cause nystagmus. The eyes should then move away from the cold water in that ear and slowly back. When warm water or air is put in the ear, the eyes should move slowly toward that ear and slowly back. If the eyes don't respond in these ways, it may mean there is damage to the nerves of the inner ear.

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. Will I need to do anything to prepare for a VNG? Are there any risks to a VNG? What do the results mean? If the results were not normal, it may mean you have a disorder of the inner ear.

These include: Meniere's disease , a disorder that causes dizziness, bouts of hearing loss, and tinnitus ringing in the ears. It usually affects only one ear. Labyrinthitis, a disorder that causes vertigo and imbalance. It is caused when part of the inner ear becomes infected or swollen. The disorder sometimes goes away on its own, but you may be prescribed antibiotics if you are diagnosed with an infection.

If you have questions about your results, talk to your health care provider. Is there anything else I need to know about a VNG?