ArticleEar and hearing
Assessing Otolith-Ocular Function With Video-Ocular Counter-Roll: Optimal Tilt Angles and Impact of Visual Inputs.
Article in Ear and hearing. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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Who cites it
1 citing paper in PubMed.
- Unveiling Otolith Mystery: Contemporary Testing Approaches and Their Clinical Significance.World journal of otorhinolaryngology - head and neck surgery · 2026Review
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4 authors.
Funding
Abstract
objectivesWhen the head is tilted laterally against the pull of gravity, the vestibulo-ocular response is an ocular counter-roll primarily driven by utricular input. Building on this physiological principle, the video-ocular counter-roll (vOCR) test is a new method for clinical evaluation of otolith-ocular function. In this study, we look for the optimal angle for the vOCR test and explore if there is any difference in vOCR responses in different lighting environments.
designThe vOCR test involves a passive tilt of the head and torso en bloc while the subject fixates on a small visual target ahead. We measured vOCR at tilt angles of 30°, 60°, and 90° in healthy subjects (age: 33.5 ± 10.04 [mean ± SD]) to determine which angle yields a robust response. We also compared vOCR measurements under light and dark conditions.
resultsOur results show that vOCR gains were greater at a 30° tilt compared with both 60° and 90° tilts, regardless of the lighting condition. The mean vOCR values ± SD were 5.91° ± 1.42° in the light and 6.22° ± 1.45° in the dark at 30°, 7.13° ± 1.87° in the light and 7.74° ± 2.28° in the dark at 60°; and 7.39° ± 1.7° in the light and 8.47° ± 2.23° in the dark at 90°. The vOCR measurements in the light and dark conditions showed a significant correlation ( R2 = 0.47; p < 0.00001).
conclusionsThese findings show that measuring vOCR with a 30° tilt under normal lighting conditions is both feasible and provides a reliable assessment of otolith-ocular function in clinical settings.
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