Use of Tinted Contact Lenses for Concussion-Related Light Sensitivity

Inclusion Criteria: * diagnosed mild traumatic brain injury (concussion) * age 18 or older * Within 24 months of initial injury * experiencing symptoms of photophobia (light sensitivity), increased photophobia since the injury, or no symptoms of photophobia Exclusion Criteria: * moderate or severe concussion * active infection or inflammation that contradicts the use of soft contact lenses * subjects unable to safely perform insertion and removal of the contact lenses