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Eye Tracking Promising to be Highly Effective in Detecting Concussions

January 30th, 2015 Medgadget Editors News

eye-tracking-for-head-injury

In patients presenting with a head injury it is still often difficult to diagnose a concussion, CT scans being the standard tool used to get to the final answer. Yet, even CT scans do not reveal a concussion every time. Now researchers at  NYU Langone Medical Center have presented a new eye tracking technique that may one day become a standard part of performing a brain injury analysis in the emergency room or even on the sidelines of football fields.

Abnormal eye movement has been known as a symptom of brain injury for a very long time, but objectively measuring its severity and correlating it to the extent of brain injury has prevented the technique from reaching its true potential in clinical practice. Specifically, disconjugate eye movement, in which the eyes don’t move in synchrony, is the window into the brain. To measure it, the NYU team used high-accuracy tracking cameras to follow the eyes of people watching a music video. They compared the eye movements of 64 healthy people against 75 trauma patients visiting New York’s Bellevue Hospital’s ER.

What the results showed is that 13 patients whose concussions were confirmed with a CT and 39 whose CT scans were coming up normal displayed disconjugate eye movement. 23 others with injuries to other parts of the body than the head were not directed to receive a CT and showed normal eye movement as in healthy folks. The researchers believe that eye tracking “may help quantify the severity of ocular motility disruption associated with concussion and structural brain injury,” according to the study in Journal of Neurotrauma

Study abstract: Eye Tracking Detects Disconjugate Eye Movements Associated with Structural Traumatic Brain Injury and Concussion…

NYU Langone: Novel Eye-Tracking Technology Detects Concussions and Head Injury Severity…

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Medical technologies transform the world! Join us and see the progress in real time. At Medgadget, we report the latest technology news, interview leaders in the field, and file dispatches from medical events around the world since 2004.

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