
How to Check for a Concussion in Eyes After Injury
How to check for a concussion in eyes starts with the pupil’s response to light, also called the pupil light reflex. When light enters the eye, the pupil should get smaller. Then, when the light is removed, the pupil should recover and get larger again. That sounds simple, but it gives doctors important information about how the brain and autonomic nervous system are responding. The autonomic nervous system helps control things your body does without you thinking about them. This includes pupil size, heart rate, blood pressure, sweating, stress response, and recovery after stimulation. After a concussion, car accident,








