The tests had patients move their eyes back and forth between two dots as quickly and accurately as possible. “That really came from our evolution, if you think about us trying to decide if something is a predator or prey,” said Hunfalvay, who co-authored the study. Unlike fixation, which requires a person to keep their eyes still, and pursuit, which involves following an object, saccade is a fast movement that reorients the eye to an area of interest, Hunfalvay told FierceBiotech. The patients each did two tests to assess saccade, one of the three types of eye movements. RELATED: FDA clears first blood test for evaluating concussion Their injuries were diagnosed by a neurologist or neuro-optometrist. The patients had injuries of varying severities: 64 were mild, 57 were moderate and 23 were severe. Investigators recruited 195 people who had suffered a traumatic brain injury (TBI) within a month of the study as well as people with no history of TBI. But a new study suggests it could provide doctors an objective and quantifiable way to diagnose concussion. The Bethesda, Maryland-based company offers several tests using its EyeQ technology that is FDA-cleared for “recording viewing and analyzing eye movements in support of identifying visual tracking impairment in patients.” The tests are not approved for clinical applications and rather are aimed at improving brain health, reading and functional vision.
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