The Video Head Impulse Test (VHIT) assesses the function of the vestibulo-ocular reflex (VOR), which helps stabilize vision during head movements. Using high-speed cameras and infrared goggles, VHIT measures eye movements in response to rapid, controlled head impulses. This test identifies abnormalities in the vestibular system, which can indicate issues such as vestibular neuritis or other balance disorders. VHIT provides precise information on vestibular function, aiding in the diagnosis and management of balance and dizziness-related conditions.