What is a VNG test for balance?
VNG stands for videonystagmography, which is a series of tests that evaluate the health of your inner ear and your central motor function. VNG testing can possibly uncover the root cause of your vertigo, dizziness or balance issues, and allow your doctor or audiologist to treat it appropriately and effectively.
What does a VNG test consist of?
VNG testing consists of three parts: oculomotor evaluation, positioning/positional testing, and caloric stimulation of the vestibular system. The test takes about up to 1.5 hour (120 minutes) to complete. Some dizziness is normal with VNG testing, and typically is of short duration.
What does abnormal VNG test mean?
Oculomotor tests: This VNG test is performed to examine the voluntary movements of the eyes. Abnormal results often indicate an abnormality of the cortex, brainstem, cerebellum, cranial nerves or individual eye muscle. Most individuals do not feel dizziness or nausea with this test.
Can eye problems cause balance issues?
Vision problems can make it challenging to maintain proper balance. When someone has troubled vision and the eye muscles work harder to compensate for the decreased visual clarity, eyestrain, headaches, and balance disorders can occur.
How does caffeine affect VNG?
Results: Analysis of the data revealed that ingestion of caffeine did not significantly influence the results of either test of vestibular function.
Does a VNG test make you sick?
VNG testing is non-invasive, and only minor discomfort is felt by the patient as a result of wearing the goggles. A patient may also experience weakness, dizziness, or nausea during a VNG test, but this generally passes after a few minutes.
Does VNG test make you dizzy?
Are there any risks to a VNG? The test may make you feel dizzy for a few minutes. You may want to make arrangements for someone to drive you home, in case the dizziness lasts for a longer period of time.
