has part has part characteristic of inheres in has modifier Abnormal vestibular function Abnormal vestibulo-ocular reflex HP:0007670 Abnormal vestibuloocular reflex An abnormality of the vestibulo-ocular reflex (VOR). The VOR attempts to keep the image stable on the retina. Ideally passive or active head movements in one direction are compensated for by eye movements of equal magnitude. UMLS:C4021571 vestibulo-ocular reflex abnormal process quality