Structural imaging and functional testing answer different questions. When one is normal, the other is often what is telling the real story.
A CT or MRI report that reads "unremarkable" is the moment a lot of post-trauma vision cases go quiet. The client continues to describe reading fatigue, screen intolerance, headaches, or intermittent double vision, and the medical record continues to say that the structural exam of the brain is normal. Those two statements are usually both correct. They just answer different questions.
Structural imaging — CT and MRI in the routine trauma protocols — is designed to evaluate anatomy. It shows bleeding, mass effect, structural lesion, herniation, and gross tissue disruption. When the trauma is mild and the injury is diffuse and functional rather than focal and anatomic, the imaging report can be entirely normal even while the client's day-to-day visual life is not.
That mismatch is not a diagnostic mystery. Concussion, whiplash, and mild traumatic brain injury are well described in the peer-reviewed literature as producing functional disruption of the oculomotor system in the absence of a structural lesion visible on standard imaging. The imaging is not wrong. It is answering a question that was never about function.
A standardized oculomotor battery evaluates the brain-driven control of eye movement and eye teaming. It measures how accurately the eyes track a moving target, how quickly and precisely they jump between fixed targets, how steadily they hold on a stationary target, how far inward they can converge at near, and how quickly they switch focus between near and distance. These are the functions that carry a person through a workday of reading, screen use, and driving. They are also the functions that are most often disrupted after a head injury.
Each of these functions has published clinical reference ranges. A measurement is not scored against an internal benchmark; it is scored against the peer-reviewed normative literature. The result is a written value with a named comparison — a form of evidence that survives cross-examination better than an unquantified clinical impression.
When the only vision-related evidence in a case file is an acuity measurement and a note that structural imaging was normal, the record has documented what the injury is not. It has not documented what the injury is. A standardized oculomotor workup fills that half of the record with objective, timestamped, machine-measured values — the kind of documentation a case file can carry forward through discovery, deposition, and, if needed, trial.
A normal MRI rules out a visible structural lesion at the time of the scan. It does not rule out concussion. It does not rule out post-traumatic oculomotor dysfunction. It does not rule out functional visual complaint. Those are separate clinical questions, evaluated with separate clinical tools, and answered with separate measurements. Treating the imaging report as if it answered all three is a common source of under-documented visual injury.
Records review, deposition, and trial testimony are available to Texas personal injury counsel. Written intake is handled through the attorney referral form or by email.
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Dr. Rizwan Jaffer is a Therapeutic Optometrist and Optometric Glaucoma Specialist practicing under Texas Optometry License #7014TG. His clinical focus is post-trauma oculomotor assessment, and he directs the forensic vision specialty program at RizEye Vision Care across six Houston-area locations. He accepts records review, deposition, and trial testimony engagements from personal injury counsel throughout Texas.
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Written inquiries are welcome from attorneys throughout Texas.
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