For the oculomotor examination, an additional test that may be used is the King–Devick Test, which is a tool that rapidly assesses eye movements and can be used in the office or on the sideline to determine impairment in eye movements associated with an acute concussion. This has been found to be potentially useful as a tool to determine removal from play. The 1-minute test involves reading single digits displayed on cards; any slowing of time to complete the test, ideally compared with the athlete’s baseline, is suggestive of concussion.
- The K-D Test rapidly assesses eye movements, which can provide insight in concussion recovery and initial sideline testing. Any score below baseline, is considered a red flag for further evaluation for concussion.