Introducing Gaze Trace Review for In-Clinic Visual Therapy

In visual therapy, the instruction can sound simple: “follow the moving target.”

The hard part is knowing what actually happened.

A patient may appear engaged. They may report that they followed the target. The clinician may notice occasional loss of tracking, but the room is busy, the target is moving, and the clinician is also managing speed, symptoms, posture, and session timing. A short observation can miss the pattern.

VOR Eye Rehab now adds Gaze Trace Review for supported in-clinic projector sessions. After a session is saved, the Pro Portal can show the expected target path and the patient’s recorded gaze movement in the same visual panel.

The goal is not to replace clinical judgment. The goal is to make the signal visible.

What the Clinician Sees

The screenshot below shows a Figure-8 projector session.

In this example:

• The blue Figure-8 outline is the path the moving target followed.
• The red trace is the patient’s recorded gaze movement.
• The heat-map density shows where gaze samples clustered.
• The system labeled the segment High deviation.
• The review panel reported 39.1% mean deviation, 74.9% P95 deviation, and 1,949 usable samples for the selected segment.

This is the kind of case where a text-only session summary would be weak. “Figure-8, 33 seconds, speed 1.00, amplitude 0.75” tells the clinician what was prescribed. The trace shows how the patient responded.

Why This Matters

Large-field visual therapy asks the patient to coordinate attention, eye movement, head position, and symptom tolerance while a target moves through space. The clinically useful question is not only whether the session was completed. It is whether the patient could stay with the task.

Gaze Trace Review helps answer questions like:

• Did the patient stay near the target path?
• Did they drift below or above the pattern?
• Did they lose the target during direction changes?
• Was the session captured with enough quality to review?
• Did a later attempt look cleaner than an earlier attempt?

That last question matters. In-clinic visual therapy is often adjusted session by session. Clinicians change target speed, target size, amplitude, dwell time, pattern type, posture, symptom limits, and cueing. A visual trace gives the care team a more concrete way to compare those adjustments.

Captured Is Not the Same as Reviewable

Eye tracking data can be noisy. Camera position, lighting, face visibility, calibration quality, screen geometry, and session duration all matter.

For that reason, VOR Eye Rehab separates capture from review.

If the system records eye-tracking points but the quality gate is not met, the session can still show that data was captured, but it will not present the trace as clinically reviewable. That distinction is intentional. Weak sensor rows should not be quietly promoted into clinical evidence.

When the gate is met, the trace appears with a reviewable quality label. When the gate is not met, the clinician sees that the signal was captured but not suitable for review.

How It Works in the Visual Therapy Studio

Gaze Trace Review builds on the existing in-clinic Visual Therapy workflow:

1. The clinician opens Visual Therapy Studio in the Pro Portal.
2. Eye tracking is enabled for the session.
3. The patient completes calibration on the display.
4. The patient follows a supported moving target pattern, such as Figure-8.
5. The clinician saves the Visual Therapy session to the patient record.
6. The in-clinic session card shows eye-tracking metrics and, when eligible, the gaze trace visualization.

The first version supports deterministic target paths where the system can reconstruct what the patient was supposed to follow. The initial focus is on patterns like Figure-8 and other predictable target trajectories. More complex patterns will require more target telemetry before they can be reviewed with the same confidence.

What This Is, and What It Is Not

This feature is a clinical review aid.

It is not a standalone diagnosis. It does not claim why the patient deviated from the target. A high-deviation trace may reflect many things: poor calibration, visual fatigue, symptom provocation, attention, comprehension, posture, camera setup, or an oculomotor tracking problem. The clinician still interprets the result in context.

What the feature does provide is a more objective artifact from an in-clinic session: the expected target path, the recorded gaze path, the sample count, the signal quality state, and a simple deviation label.

That is a better starting point than memory alone.

Available Now in the Pro Portal

Gaze Trace Review is available for Pro Portal Visual Therapy sessions with eye tracking enabled. Use a supported dynamic pattern, complete calibration, save the session to the patient record, and open the in-clinic session card from the patient’s Clinical tab.

This is an early step toward a larger goal: turning visual therapy sessions into reviewable, quality-gated evidence that helps clinicians see what the patient actually did, not just what the protocol asked them to do.

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This feature is intended to support clinician review and documentation. It does not replace professional medical judgment, diagnosis, or treatment planning.