Validation of Clinical Outcome Measures Specific to mTBI-Related Oculomotor Disorders

Validation of Clinical Outcome Measures Specific to mTBI-Related Oculomotor Disorders

The specific aim of this project is to validate clinical tests to be used as outcome measures in studies of mTBI-related vision problems.

Participants with (n=50) and without (n=100) a history of mTBI will be recruited. Investigators will study the use of a series of visual endurance tests (tests that require sustained visual responses over a period of time). In addition to developing expected values for these tests, investigators will also after qualitative data about discomfort levels during testing.

Inclusion Criteria:

• Diagnosis of mTBI within previous 1 to 6 months
• Distance visual acuity better than or equal to 20/25 in each eye
• Score >21 on Convergence Insufficiency Symptom Survey

Exclusion Criteria:

• Diagnosis of moderate or severe TBI; > 30-min loss of consciousness
• Not wearing required refractive error)
• Disease(s) known to affect oculomotor system (multiple sclerosis, Graves orbitopathy, myasthenia gravis, diabetes mellitus, or Parkinson disease)-Manifest strabismus or intraocular injury (evaluated at vision examination)
• Cognitive delays that may impact testing