Oculomotor Testing After a Concussion: Connecting Reading, Screen and Driving Symptoms to Measurable Eye Movements

Who this is for: Patients whose symptoms show up while reading, on screens or behind the wheel; providers deciding when eye-movement testing fits a referral; and attorneys who need to understand what these findings do and do not show.

Our eye-movement testing overview explains what the test is like. This article takes a different angle: it starts from the symptoms people actually describe and maps them to what is measured.

Symptom to measure: a practical map

Patients describe their day. Testing translates that day into standardized measures a physician can review.

What the evidence supports

A 2014 study of a brief vestibular/ocular motor screening approach found that symptom provocation and near-point convergence distance helped distinguish recently concussed patients from controls. A 2018 systematic review and meta-analysis of eye-tracking in sport-related concussion found measurable differences in several eye-movement parameters, while calling for more standardized methods. Together they support eye-movement measures as a useful part of an evaluation, not a stand-alone answer.

Factors that can affect results

Fatigue, certain medications, a pre-existing eye condition, prior concussions or poor sleep can all affect eye-movement performance. Tell the technician about these before testing. This is not a glasses prescription exam; it measures how the eyes move and coordinate.

For providers: when to consider referral

Consider eye-movement testing when a patient reports reading difficulty, screen intolerance, motion discomfort or trouble with driving after an injury, especially if symptoms persist beyond the first weeks. The physician-reviewed diagnostic reports go to a neurologist who interprets them, and you receive a copy. Patient questions about getting back behind the wheel are covered in concussion and return to driving. We diagnose. You treat.

For attorneys: what these findings mean in a file

Oculomotor findings can give structure to complaints that are otherwise hard to describe, like "I can't read the way I used to." They do not, on their own, establish that an injury occurred or what caused it. Their weight comes from consistency with the history, symptoms and other measures, as interpreted by a physician. See our attorney resources.

For patients: describe your day

Before your appointment, jot down specific moments when symptoms show up: a paragraph you had to reread, a commute that left you dizzy, a store you had to leave. Those details help your providers understand what to look for.