Videonystagmography (VNG) Vertigo and Ear Balance Testing

What is videonystagmography (VNG)?

Videonystagmography (VNG) is a test that measures a type of involuntary eye movement called nystagmus. These movements can be slow or fast, steady or jerky. Nystagmus causes your eyes to move from side to side or up and down, or both. It happens when the brain gets conflicting messages from your eyes and the balance system in the inner ear. These conflicting messages can cause dizziness.

You can briefly get nystagmus when you move your head a certain way or look at some types of patterns. But if you get it when you don't move your head or if it lasts a long time, it may mean you have a disorder of the vestibular system.

Your vestibular system includes organs, nerves, and structures that are in your inner ear. It is your body's main center of balance. The vestibular system works together with your eyes, sense of touch, and brain. Your brain communicates with the different systems in your body to control your balance.

Other names: VNG

What is it used for?

VNG is used to find out if you have a disorder of the vestibular system (the balance structures in your inner ear) or in the part of the brain that controls balance.

Why do I need a VNG?

You may need a VNG if you have symptoms of a vestibular disorder. The main symptom is dizziness, a general term for different symptoms of imbalance. These include vertigo, a feeling that you or your surroundings are spinning, staggering while walking, and lightheadedness, a feeling like you are going to faint.

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

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how much does a vng test generally cost?