What is videostagmography?

Videonystagmography is a collection of testing procedures that use measuring involuntary eye movements to diagnose certain disorders of balance or dizziness. The test uses a special set of glasses that measure eye movements in the patient when certain stimuli are applied, such as changing head positions or circulating fluid over the tube inserted into the ear canal. Once a number of tests have been completed with goggles, the physician can determine whether the cause of the disorder is an inner ear or some other physiological problem such as a brain disorder or low blood pressure.

The use of glasses in videostagmography has led to its widespread preference before electronagmography. While both tests perform approximately the same end, electronystagmography requires the insertion of a series of electrodes into the muscles surrounding the eyes to measure their movement. On the other hand, Videonystagmography uses a special set of glasses that contains Assada infrared cameras that measure the same movements for greater accuracy. Due to the non -invasive natureGoggles are more comfortable and less likely during the test that involuntary eye movements in response to discomfort caused by electrodes. Combination of greater accuracy and less false eye movements made videostagmography an excellent and preferred test.

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Videonystagmography test is performed in four parts. The first part of the test, eye mobility, is designed to measure the voluntary ability of the patient through the eyes. The patient will be asked to perform certain eye movements, such as smoothly and slowly or quickly to jump from one place to another. The patient will also be asked to monitor the target with the eyes because the maneuvers in specific samples at a specific speed. By measuring the eye, the physicians can determine whether the nerves and the brain work properly.

In the second test, optokinetic nystagmus, the patient will be asked to watch a large movable image with his eyes. Although there is a similar eye mobility test, the oneThe test is much more refined. The nystagmus optokinetic test is used to ensure the correct functioning of the central nervous system in relation to eye movement.

The third test that will be performed during Videonagmography is the position test of Nystagmus. During this test, the doctor or technician will move the patient's head to different positions and measure involuntary eye movement with glasses. While the head moves, any abnormal movement of fluid in semicircular channels in the inner ear, the organs that are used to create a sense of balance in humans, cause the eyes to try automatically read automatically in an abnormal way. If the test turns out to be positive, it shows that small crystals in the liquid of semicircular channels cause a problem of balance or dizziness.

caloric testing is the last part of the Videonystagmography test. During this test, small tubes are inserted into the right and left ear canal, one by one. The struggles spread alternately warm and cold liquid, which stimulates inNitra ear. By measuring automatic eye movement in response to fluid and at different temperatures, this test can ensure that the eyes react correctly to stimuli or detect whether there is a problem of linking between ears and eyes, which would manifest itself as dizziness or inability to maintain balance.