Clinical Assessment of Otolith-Ocular Function: A Practical Guide and Review of the Video-Ocular Counter-Roll.

Authors

Ali Rafati, Amir Kheradmand

Published in

Neurologic clinics. Volume 44. Issue 4. Pages 567-574. Epub Sep 07, 2026.

Abstract

Otolith organs play a central role in gaze stabilization, spatial orientation, and postural control. Advances in video-oculography have created new opportunities to assess this key aspect of vestibular function directly at the bedside. Using this technology, the video ocular counter-roll (vOCR) test extends vestibular evaluation to the otolith-ocular system by measuring ocular counter-roll (OCR), a torsional vestibulo-ocular response during lateral head tilt. This review provides a practical guide to the clinical application of vOCR, including setup, analysis, and interpretation, and discusses its diagnostic utility for assessing otolith-ocular function, characterizing patterns of vestibular loss, and monitoring recovery.

PMID:
42869516
Bibliographic data and abstract were imported from PubMed on 14 Oct 2026.

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