EYE-TRAC Advance: Technology Verification (ETA-TV) Cohort 1

Not Applicable

Completed

Conditions: Eye-tracking

Interventions: Device: EYE-SYNC eye-tracking device
Other: SCAT-3
Device: Desktop Eye-Tracker

Registration Number: NCT02844543

Lead Sponsor: Stanford University

Brief Summary: This study will assess the effects of exercise and non-concussive bodily contact on eye-tracking scores collected by the EYE-SYNC eye-tracking device.

Detailed Description: The investigators propose to prospectively study a cohort of 18-25-year-old athletes. Athletes will be tested with the EYE-SYNC eye-tracking device prior to the start of an athletic practice or competition (pre-test) and then after the conclusion of the practice/competition (post-test). The investigators hope to understand if eye-tracking scores are effected by exercise and non-concussive bodily contact commonly incurred during athletic play.

Recruitment & Eligibility

Status: COMPLETED

Sex: All

Target Recruitment: 155

Inclusion Criteria

Not provided

Exclusion Criteria

Not provided

Study & Design

Study Type: INTERVENTIONAL

Study Design: SINGLE_GROUP

Arm && Interventions

Group	Intervention	Description
Athletes	EYE-SYNC eye-tracking device	Participants will be evaluated using the EYE-SYNC eye-tracking device, Desktop Eye-Tracker, and Sport Concussion Assessment Tool (SCAT-3) tool.
Athletes	SCAT-3	Participants will be evaluated using the EYE-SYNC eye-tracking device, Desktop Eye-Tracker, and Sport Concussion Assessment Tool (SCAT-3) tool.
Athletes	Desktop Eye-Tracker	Participants will be evaluated using the EYE-SYNC eye-tracking device, Desktop Eye-Tracker, and Sport Concussion Assessment Tool (SCAT-3) tool.

Primary Outcome Measures

Name	Time	Method
Changes in the Eye-tracking Score Before and After Practice or Game: Tangential and Radial Error	Up to 6 hours	The EYE-SYNC test was performed before and after practice to analyze the effect of exercise and sub-concussive impact. The movement of eye was tracked using EYE-SYNC. The data were recorded in a surface tablet connected to EYE-SYNC. Tangential and radial error are defined as degrees of variation in eye tracking along a circular path (tangential) and at 90 degrees to the tangential path (radial). Positive values indicate the eye is ahead of the target; negative values indicate the eye is behind the target.
Changes in the Eye-tracking Score Before and After Practice or Game: Vertical and Horizontal Gain	Up to 6 hours	The EYE-SYNC test was performed before and after practice to analyze the effect of exercise and sub-concussive impact. The movement of eye was tracked using EYE-SYNC. The data were recorded in a surface tablet connected to EYE-SYNC. Vertical and horizontal gain are defined as the ratio of velocity (velocity of the eye:velocity of the target). Positive values indicate the eye is ahead of the target; negative values indicate the eye is behind the target.
Changes in the Eye-tracking Score Before and After Practice or Game: Phase Error	Up to 6 hours	The EYE-SYNC test was performed before and after practice to analyze the effect of exercise and sub-concussive impact. The movement of eye was tracked using EYE-SYNC. The data were recorded in a surface tablet connected to EYE-SYNC. Phase error is defined as the difference in degrees between movement of the target and the movement of the eye. Positive values indicate the eye is ahead of the target; negative values indicate the eye is behind the target.

Secondary Outcome Measures

Name	Time	Method
Changes in Sport Concussion Assessment Tool (SCAT-3) Standardized Assessment of Concussion (SAC) Score	Day of study/event (up to 6 hours)	Change in SCAT-3 SAC score before and after practice or game is reported. The SAC score is based on the following assessments: number of symptoms (22 points), symptom severity (132 points), orientation (5 points), immediate memory (15 points), concentration (5 points), and delayed recall (5 points). Scores are summed for a possible range of 0 to 184, with lower scores corresponding to fewer concussion symptoms, and higher scores corresponding to more concussion symptoms.