Electronystagmography

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ENG

Distinct involuntary eye movements should occur after the warm or cold water or air is placed into your ears.

Note: Normal value ranges may vary slightly among different laboratories. Talk to your doctor about the meaning of your specific test results.

Abnormal results may be a sign of damage to the nerve of the inner ear or other parts of the brain that control eye movements.

Any disease or injury that damages the acoustic nerve can cause vertigo. This may include:

• Blood vessel disorders with bleeding (hemorrhage), clots, or atherosclerosis of the blood supply of the ear
• Cholesteatoma and other ear tumors
• Congenital disorders
• Injury
• Medications that are toxic to the ear nerves, including aminoglycoside antibiotics, some antimalarial drugs, loop diuretics, and salicylates
• Multiple sclerosis
• Movement disorders such as progressive supranuclear palsy
• Rubella
• Some poisons

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Additional conditions under which the test may be performed:

• Acoustic neuroma
• Benign positional vertigo
• Labyrinthitis
• Meniere's disease

Review Date: 04/30/2011
Reviewed By: Kevin Sheth, MD, Department of Neurology, University of Maryland School of Medicine, Baltimore, MD. Review provided by VeriMed Healthcare Network. Also reviewed by David C. Dugdale, III, MD, Professor of Medicine, Division of General Medicine, Department of Medicine, University of Washington School of Medicine;David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.

A.D.A.M., Inc. is accredited by URAC, also known as the American Accreditation HealthCare Commission (www.urac.org).