mTBI Identification and Monitoring Through Retinal Scanning

Inclusion Criteria: 1. Age 18-45 years 2. Presents to the facility within 2 weeks of head trauma 3. Able to provide informed consent * If minor, then able to provide parental consent and minor consent 4. Able to participate in the examination, including the ability to follow simple instructions 5. Fluency in English or Spanish Exclusion Criteria: 1. Glasgow Coma Scale score equal to or less than 13 at the time of study enrollment 2. Under the influence of alcohol or drugs 3. Previous eye surgery 4. Visual acuity known to be 20/200 or less in either eye 5. Known strabismus, amblyopia (lazy eye), or double vision 6. Known eye movement disorder, including nystagmus 7. Known optic nerve disease, including papilledema or optic neuropathy 8. Known retinal disease, including macular degeneration or retinal degeneration 9. Known cataract 10. History of neurosurgery 11. History of stroke/brain hemorrhage, brain tumor, or epilepsy 12. Any head trauma requiring medical attention from a physician within the last 6 months 13. Diagnosed dementia or cognitive impairment requiring assistance for daily living 14. Other condition(s) under the care of a neurologist 15. Psychiatric hospitalization in the last 90 days 16. Subject considered unsuitable for participation in this clinical trial by PI, treating clinician, or study research staff 17. Any minor brain injury regardless of loss of consciousness