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Related Experiment Video

Updated: Nov 4, 2025

Quantification of Oculomotor Responses and Accommodation Through Instrumentation and Analysis Toolboxes
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OculoMotor Assessment Tool Test Procedure and Normative Data.

Chang Yaramothu, Christopher J Morris1, John Vito d'Antonio-Bertagnolli1

  • 1Department of Biomedical Engineering, New Jersey Institute of Technology, Newark, New Jersey.

Optometry and Vision Science : Official Publication of the American Academy of Optometry
|May 27, 2021
PubMed
Summary
This summary is machine-generated.

This study established normative data for oculomotor endurance in healthy individuals using a new assessment tool. The findings provide a baseline for identifying potential concussion-related eye movement abnormalities.

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Area of Science:

  • Ophthalmology
  • Neuroscience
  • Sports Medicine

Background:

  • Oculomotor function assessment is crucial for diagnosing conditions like concussion.
  • Standardized tools are needed to accurately measure oculomotor performance.
  • The Vestibular/OculoMotor Screening (VOMS) assessment can be enhanced with objective oculomotor metrics.

Purpose of the Study:

  • To establish normative data for oculomotor endurance using a novel assessment tool.
  • To evaluate the reliability of the oculomotor assessment tool in a healthy population.
  • To provide a baseline for differentiating normal from concussion-induced oculomotor dysfunction.

Main Methods:

  • 376 healthy participants (average age 20.4 years) performed horizontal saccades, vertical saccades, and vergence jumps for 60 seconds each.
  • Participants alternated fixation between targets as quickly as possible, minimizing overshoot/undershoot.
  • Eye movement counts were compared between the initial and latter 30 seconds of each task.

Main Results:

  • Statistically significant differences (P < .001) were found in eye movement counts between the first and second 30 seconds for all tasks.
  • Horizontal saccades: 70±15 vs. 63±13; Vertical saccades: 68±14 vs. 63±13; Vergence jumps: 43±11 vs. 39±10.
  • No significant sex-based differences were observed in eye movement counts or their changes.

Conclusions:

  • Normative data for oculomotor endurance tasks were successfully established.
  • These data can serve as a reference for evaluating patients with binocular dysfunctions, including those with concussion.
  • The oculomotor assessment tool offers potential for improved diagnosis of traumatic brain injury-related oculomotor deficits.