Eye Tracking Technology Can Detect Concussions

By  ,  Onlymyhealth editorial team
Jan 30, 2015

According to a new study published in the Journal of Neurotaruma, eye tracking may help quantify the severity of disconjugate eye movements associated with concussion and brain injury.

Health NewsThe researchers from the New York University School of Medicine in New York developed an algorithm that can track Cartesian coordinates of the right and left pupils of the eye over 200 seconds and can compare to them as the patient watches a short film clip moving inside an aperture on a computer screen.
They conducted the eye tracking on 64 healthy, non injured controls and 75 trauma patients with either a positive head computed tomography scan, negative head CT or non-head injury. The researchers found that all the five measures of the horizontal disconjugacy were increased in positive and negative head Ct patients as compared to the non injured controls.

People with head injury had one of the five vertical disconjgacy measures increased as compared to controls. Three metrics of the horizontal disconjagacy negatively correlated with the SCAT3 clinical concussion severity of the symptoms and positively correlated with total Standardized Assessment of Concussion score in all trauma patients.

According to the author of the research abnormal tracking metrics has improved over time towards the baseline in brain injured subjects seen in follow up.

Image Courtesy: psypost.org

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