What is head impulse test

what is head impulse test

The head impulse test is a clinical examination used to assess the function of the vestibulo-ocular reflex (VOR), which helps maintain visual stability during head movements. The test involves rapidly moving the patient’s head to one side and observing whether their eyes accurately follow the movement, indicating that the VOR is functioning normally. An abnormal head impulse test result may indicate a vestibular system disorder.