Electronystagmography (ENG) is a test that measures eye movements. It is used to evaluate the vestibular system, which is responsible for balance.
What does Electronystagmography test for?
ENG can test for a variety of vestibular disorders, including:
- Benign paroxysmal positional vertigo (BPPV): This is a common condition that causes brief episodes of dizziness when the head is moved in certain positions.
- Vestibular neuritis: This is an inflammation of the vestibular nerve, which can cause dizziness, nausea, and vomiting.
- Meniere’s disease: This is a condition that causes hearing loss, tinnitus, and vertigo.
What is the purpose of the ENG test?
The purpose of the ENG test is to help diagnose vestibular disorders. The test can also be used to monitor the progress of treatment and to assess the risk of falls.
How is an ENG test performed?
The ENG test is performed in a doctor’s office or a hospital. The patient will be asked to sit or lie down in a darkened room. Electrodes will be placed on the patient’s face and scalp to measure eye movements.
The patient will then be asked to perform a series of movements, such as looking to the side, up, and down. The electrodes will record the patient’s eye movements during these movements.
The ENG test may also include a caloric test. In the caloric test, warm or cold water is injected into the ear canal. This causes the semicircular canals to move, which in turn causes the eyes to move. The electrodes will record the patient’s eye movements during the caloric test.
What is ENG testing for nerves?
ENG testing is primarily used to assess the function of the vestibular nerve, which is responsible for balance. However, the test can also be used to assess the function of other nerves, such as the facial nerve and the auditory nerve.
Conclusion
ENG is a valuable tool for diagnosing and monitoring vestibular disorders. The test is relatively painless and can be completed in a short amount of time. If you are experiencing dizziness or balance problems, talk to your doctor about whether ENG testing would be right for you.