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Vision Test Used to Diagnose Concussions

The King-Devick test performed on the sidelines may help
determine whether athletes have suffered a concussion. It
involves quickly reading numbers on index cards. During
the study, 217 University of Florida athletes took the test
at the beginning of the season. Thirty of the athletes had
a concussion during the season and were tested again at
the time of the injury. The time to complete the test was
longer for 79% of the athletes after the injury. The test
requires eye movements, language, and concentration, all
of which can be impaired as a result of concussion.