The Video-Head Impulse Test (VHIT) is a diagnostic method in otoneurology that is used to assess the vestibulo-ocular reflex.
The device records the patient’s eye response in response to head rotation and calculates the ratio of pupil to head rotation angular velocity (Gain), and calculates vestibular asymmetry in peripheral lesions. Eyeball movements are recorded using high-speed video cameras, head rotations are recorded by a gyroscope built into the device. Importantly, VHIT can detect both peripheral and central vestibular dysfunction, making it a valuable diagnostic tool.
The video pulse test can also be used to monitor the effectiveness of treatment for patients with vestibular disorders. For example, after rehabilitation interventions or medication prescription, VHIT can help assess changes in vestibular function and determine how well recovery is progressing. This allows clinicians to adjust treatment approaches and tailor therapy based on individual patient needs.
