Modification of Compensatory Saccades After AVOR Gain Recovery

Overview

Journal J Vestib Res

Publisher Sage Publications

Date 2007 Aug 30

PMID 17726282

Citations 18

Authors

Michael C Schubert

Americo A Migliaccio

Charles C Della Santina

Affiliations

Soon will be listed here.

Abstract

The recruitment of extra-vestibular mechanisms to assist a deficient angular vestibulo-ocular reflex (aVOR) during ipsilesional head rotations is well established and includes saccades of reduced latency that occur in the direction of the lesioned aVOR, termed compensatory saccades (CS). Less well known is the functional relevance of these unique saccades. Here we report a 42 y.o. male diagnosed with right unilateral vestibular hypofunction due to vestibular neuronitis who underwent a vestibular rehabilitation program including gaze stabilization exercises. After three weeks, he had a significant improvement in his ability to see clearly during head rotation. Our data show a reduction in the recruitment and magnitude of CS as well as improved peripheral aVOR gain (eye velocity/head velocity) and retinal eye velocity. Our data suggest an inverse, dynamic relationship between the recruitment of CS and the gain of the aVOR.

Citing Articles

Refining the Video Head Impulse Test Diagnostic Accuracy: A Case-Control Study.

Faranesh N, Abo-Saleh K, Kaminer M, Shupak A Audiol Neurootol. 2023; 28(3):202-210.

PMID: 36626874 PMC: 10273913. DOI: 10.1159/000528442.

Continuous Head Motion is a Greater Motor Control Challenge than Transient Head Motion in Patients with Loss of Vestibular Function.

Wang L, Zobeiri O, Millar J, Souza Silva W, Schubert M, Cullen K Neurorehabil Neural Repair. 2021; 35(10):890-902.

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Gaze shift dynamic visual acuity: A functional test of gaze stability that distinguishes unilateral vestibular hypofunction.

Chen P, Jheng Y, Huang S, Li L, Wei S, Schubert M J Vestib Res. 2020; 31(1):23-32.

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Improvement After Vestibular Rehabilitation Not Explained by Improved Passive VOR Gain.

Millar J, Gimmon Y, Roberts D, Schubert M Front Neurol. 2020; 11:79.

PMID: 32153490 PMC: 7044341. DOI: 10.3389/fneur.2020.00079.

Gaze stabilisation exercises in vestibular rehabilitation: review of the evidence and recent clinical advances.

Meldrum D, Jahn K J Neurol. 2019; 266(Suppl 1):11-18.

PMID: 31385017 DOI: 10.1007/s00415-019-09459-x.

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