The DVAT-NI provides a “low-tech”, objective, behavioral measure of vestibulo-ocular reflex (VOR) function in response to examiner generated (i.e., “passive”) rotational head movement stimuli. The DVAT NI provides a functional, low-cost assessment of gaze stability that can be administered in any clinical environment. This measure is used to screen for and characterize the severity of gaze instability (quantified as “lines lost” on an eye chart) and is commonly administered in conjunction with other “bed-side” clinical tests of vestibular function like the Head Impulse Test or the Head Shaking Nystagmus Test in the absence of more sophisticated assessment techniques.
Area of AssessmentVestibular
Vision & Perception