[Functional vestibulo-ocular reflex test]

Abstract

Summary In recent years, the diagnosis and treatment of vertigo and balance disorders have become a hot topic of multidisciplinary attention. The evaluation method of vestibular function has also been improved, providing important evidence for the diagnosis and differential diagnosis of vertigo related diseases. Vestibular rehabilitation is one of the important methods for the treatment of vertigo diseases. Assessing vestibular rehabilitation status in these patients is also the key for guiding treatment. The assessment of vestibulo-ocular reflex (VOR) function is an important part of vestibular functional testing. Currently, the dynamic visual acuity test (DVAT), gaze stabilization test (GST), and head impulse test (HIT) can be used to evaluate the VOR function. Based on these tests, a method of vestibular function testing has emerged internationally: functional head impulse test (fHIT). The article based on the review of relevant literatures and the principle of VOR detection and HIT detection to introduce the test methods and results interpretation of fHIT, DVAT and GST to provide reference for clinical diagnosis and treatment.

Keywords: dynamic visual acuity; gaze stabilization; head impulse test; vestibular function; vestibulo-ocular reflex.