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Diagnosing Vertigo

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Topic at a Glance

  • ENG (Electronystagmography) and VNG (Videonystagmography) are painless diagnostic tests used to evaluate vertigo symptoms, balance issues, and dizziness.
  • These tests measure eye movements to determine whether the inner ear or the central nervous system is contributing to vertigo.
  • Patients receive specific preparation instructions before testing, and results help doctors determine the most effective treatment for controlling balance and easing vertigo symptoms.
  • At NY Neurology Associates, we specialize in helping patients just like you take back control from vertigo and dizziness. Our experienced neurologists use advanced testing methods to pinpoint the type of vertigo you may have (benign paroxysmal positional vertigo (BPPV), peripheral vertigo, or central vertigo) so we can develop a treatment plan tailored to your needs.

ENG / VNG

Electronystagmography (ENG) and Videonystagmography (VNG) are used to diagnose issues with dizziness, vertigo, and difficulty walking.

ENG and VNG are done together in order to measure your visual responses. ENG is done through the use of electrodes, which can monitor the electrical activity in your brain. VNG uses video goggles with infrared cameras that can track and measure the movement of the eyes. When used together, the tests can identify if an issue within the inner ear is causing balance issues.

Preparing for the ENG / VNG Test

Your doctor will provide specific instructions before the test. Common instructions include:

  • Not eating for the three hours prior to the test
  • Nothing with caffeine in the 24 hours before the test
  • Do not wear contact lenses to the exam
  • Do not apply makeup to the face before the exam. There will also be specific information regarding which medications to stop taking before the exam. It is important to fully follow these directions.

During the ENG / VNG Test

The ENG / VNG is typically done in three parts:

  • Part One – Done while the patient is sitting up, the first part measures the patient’s visual system. The patient will be asked to watch a screen with moving lights.
  • Part Two – Done while the patient is laying back, this test focuses on the movements of the eye when the head is in different positions. The purpose is to see how changes in position impact the patient.
  • Part Three – Done while the patient is laying back, the final part of the test assesses a person’s balance. During the test, both cooled and warmed air will be blown into the patient’s ear.

 

These tests are typically performed in an office. To do an ENG/VNG takes about an hour and is pain-free.

After the test, the results will be analyzed and the results will be provided within a few days. Patients can return to normal activities after the tests are complete. 

Schedule Your Vertigo Diagnosis Today

Vertigo can interfere with your daily life, from causing blurred vision and nausea to increasing your risk of falling. The good news is that with the right diagnosis, our doctors can recommend treatments ranging from the Epley maneuver to medications or other therapies designed to ease vertigo symptoms and restore your balance.

Don’t wait until dizziness disrupts your life further. Contact NY Neurology Associates in New York today to schedule your consultation and take the first step toward effective vertigo treatment. 

FAQs About Vertigo

Below are some common questions about diagnosing vertigo.

Electronystagmography (ENG) and Videonystagmography (VNG) are used to diagnose issues with dizziness, vertigo, and difficulty walking.

ENG is done through the use of electrodes, which can monitor the electrical activity in your brain. VNG uses video goggles with infrared cameras that can track and measure the movement of the eyes. When used together, the tests can identify if an issue within the inner ear is causing balance issues.

Common instructions include not eating for the three hours prior to the test, consuming nothing with caffeine in the 24 hours before the test, not wearing contact lenses to the exam, and not applying makeup to the face before the exam.

The ENG / VNG is typically done in three parts…Patients will be asked to watch a screen with moving lights in a sitting and lying position. Then a person’s balance i tested where both cooled and warmed air will be blown into the patient’s ear. To do an ENG/VNG takes about an hour and is pain-free.

After the test, the results will be analyzed and the results will be provided within a few days. 

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