Feasibility of Non-Clinical Video Oculography for Detecting Saccadic Amplitude-Velocity Relationships in Parkinson's

Overview

Parkinson's disease affects movement by damaging nerve cells in the brain, and these changes can also impact eye movements. This project tested whether a 60 Hz laptop webcam could accurately record saccadic eye movements and capture the same amplitude–peak velocity relationship seen in clinical studies. Eye movement data collected with a MacBook webcam were converted into degrees of visual angle and compared to clinical baseline data from the GazeBase dataset. Although the webcam measured lower peak velocities than high-speed (1000 Hz) clinical systems, the overall pattern of the main sequence remained clear. Repeated trials showed consistent results, suggesting the webcam was capturing real physiological brgehavior despite its lower sampling rate. These findings suggest that consumer-grade webcams can measure meaningful eye movement patterns and may have potential as an affordable screening tool, though not as a diagnostic device.

Competition history

• CSEF 2026 Medicine & Physiology (Junior Division) · Entry J-15-24

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