Eye Movement Differences in Contact Versus Non-Contact Olympic Athletes

Area of Science:

• Sports Medicine
• Neuroscience
• Ophthalmology

Background:

• Oculomotor functioning is critical for athletic performance and injury detection.
• Mild traumatic brain injury (mTBI) can impact visual-motor control.
• Distinguishing between contact and non-contact sports may reveal differences in visual-motor demands.

Purpose of the Study:

• To investigate differences in oculomotor functioning between Olympic-level contact and non-contact sports athletes.
• To determine if oculomotor measures can predict sport type (contact vs. non-contact).

Main Methods:

• 67 Olympic athletes (27 contact, 40 non-contact) participated.
• Oculomotor tasks included Horizontal Saccade (HS), Circular Smooth Pursuit (CSP), Horizontal Smooth Pursuit (HSP), and Vertical Smooth Pursuit (VSP).
• A remote eye tracker was used to collect data.

Main Results:

• Contact sport athletes generally scored higher on oculomotor tasks than non-contact athletes (p < .05), except for VSP Pathway and CSP Synchronization.
• Logistic regression model was significant (χ(6) = 37.08, p < .001), explaining 57.4% of variance and classifying 88.1% of cases.
• HS measures and VSP pathway significantly predicted sport type; CSP synchronization did not.

Conclusions:

• Significant oculomotor performance differences exist between Olympic contact and non-contact athletes.
• Oculomotor functioning may serve as a reliable, real-time indicator for detecting mTBI in sports.
• This study provides novel insights into sport-specific oculomotor adaptations and mTBI detection.