Researchers studying brain injuries in veterans and athletes believe eye tests could be used to help detect and monitor treatment of neurological damage caused by explosions, diseases and sports injuries. An estimated 20% of the 2.4 million U.S. troops deployed to Iraq and Afghanistan were exposed to explosions, data show. Dr. Randy Kardon, director of the Department of Veterans Affairs Center for the Prevention and Treatment of Visual Loss, developed ways of assessing retinal thickness and other metrics that can shed light on what clinicians can't see. "By measuring things in the eye, perhaps we have a barometer for what might be happening in the brain," he said.
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