An eye-test has been developed that may be able to detect symptoms of concussion, simply by measuring the pupil's response to light.
If proven to work, it has the potential to dramatically change the way concussion is tested for on the sidelines, putting people at risk out of harm's way.
However, ideally concussion needs to be diagnosed by a health professional trained in assessing patients with head injury. You should visit your nearest accident and emergency (A&E) department if you or someone in your care has a head injury.
Keyword: concussion eye test