Video head impulse testing (VHIT) is a diagnostic tool used to evaluate the vestibulo-ocular reflex (VOR), which is responsible for stabilizing the visual image during head movements. The VOR is important for maintaining clear vision while the head is moving. VHIT is commonly used to diagnose and evaluate patients with vestibular disorders, such as vestibular neuritis, Meniere’s disease, and benign paroxysmal positional vertigo (BPPV).
VHIT is a non-invasive procedure that involves the use of infrared video goggles to measure the movement of the eyes in response to sudden head movements. The patient is instructed to fixate on a target while the examiner rapidly moves the patient’s head in different directions. The video goggles record the eye movements, and the data is analyzed to evaluate the strength and accuracy of the VOR.
As a diagnostic tool, VHIT does not have a specific treatment associated with it. However, VHIT can provide valuable information to guide the treatment of vestibular disorders. For example, patients with reduced VOR gain may benefit from vestibular rehabilitation exercises aimed at improving VOR function. Patients with abnormal VOR responses may benefit from medication or other treatments to manage their vestibular disorder.
Overall, VHIT is a valuable diagnostic tool for evaluating patients with vestibular disorders and can provide important information to guide treatment decisions. However, the specific treatment for a vestibular disorder will depend on the underlying cause of the problem and should be determined by a healthcare professional with expertise in vestibular disorders.