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Vision Training Methods for Sports Concussion Mitigation and Management

Vision Training Methods for Sports Concussion Mitigation and Management

Published on: May 5, 2015

Fixational eye movements following concussion.

Bianca T Leonard^1,2, Anthony P Kontos^3,4, Gregory F Marchetti^5,6

¹Department of Ophthalmology, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA.

Journal of Vision

|December 23, 2021

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This summary is machine-generated.

Fixational eye movements (FEMs) show larger saccade amplitudes in recent concussion patients compared to controls. This objective eye-tracking method offers a sensitive assessment for ocular dysfunction following concussion.

Area of Science:

Ophthalmology
Neurology
Sports Medicine

Background:

Concussion frequently causes oculomotor symptoms and impairments.
Objective diagnostic tools for concussion-related eye movement abnormalities are needed.

Purpose of the Study:

To evaluate fixational eye movements (FEMs) with high resolution after concussion.
To determine if FEMs can objectively differentiate concussed individuals from controls.

Main Methods:

Used a retinal eye-tracking device (TSLO) to measure FEMs in concussed and control groups.
Quantified FEMs during center and corner fixation tasks.
Analyzed saccade amplitude, peak velocity, and acceleration.

Main Results:

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Concussed individuals showed significantly greater fixational saccade amplitude, peak velocity, and acceleration when fixating centrally.

These metrics differentiated concussed from controls with significant accuracy (AUC = 0.67-0.68).

No significant differences were found for drift metrics or during corner fixation tasks.

Conclusions:

High-resolution FEMs, particularly saccade amplitude during central fixation, can objectively assess ocular dysfunction in the acute-to-subacute concussion recovery period.
FEMs offer a quick, sensitive, and accurate method for concussion assessment.
Task specificity highlights potential for optimized diagnostic paradigms.