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Related Experiment Video

Updated: Apr 23, 2026

Using Eye-tracking to Assess the Relative Importance of Visual and Vestibular Input to Subcortical Motion Processing in the Roll Plane
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Visual dependency and dizziness after vestibular neuritis.

Sian Cousins1, Nicholas J Cutfield1, Diego Kaski1

  • 1Neuro-otology Unit, Division of Brain Sciences, Imperial College London, Charing Cross Hospital, London, United Kingdom.

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Patients with persistent vestibular symptoms after vestibular neuritis often rely heavily on visual input for balance. This visual dependence is linked to poorer recovery and may be treatable with vestibular rehabilitation.

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Area of Science:

  • Neuroscience
  • Ophthalmology
  • Vestibular System Disorders

Background:

  • Vestibular neuritis (VN) recovery is variable, with ~50% experiencing long-term symptoms.
  • Identifying factors predicting poor VN outcomes is crucial for effective patient management.

Purpose of the Study:

  • To investigate the association between visual dependence and persistent vestibular symptoms after acute VN.
  • To determine if visual dependence predicts long-term sequelae in VN patients.

Main Methods:

  • Assessed visual dependence using a laptop-based Rod-and-Disk Test.
  • Quantified symptom severity with the Dizziness Handicap Inventory (DHI).
  • Included 28 VN patients (≥6 months post-illness) and 25 controls.

Main Results:

  • Patients with the worst outcomes (high DHI scores) exhibited significantly greater visual dependence than controls (p=0.03).
  • Asymptomatic or mildly symptomatic VN patients did not differ from controls in visual dependence.
  • Visual dependence correlated with high levels of persistent vestibular symptoms.

Conclusions:

  • Over-reliance on visual input for spatial orientation is characteristic of VN patients with poor recovery.
  • Visual dependence may serve as a clinical marker for long-term vestibular dysfunction post-VN.
  • Targeting visual dependence with rehabilitation may improve outcomes for some VN patients.