Post-Concussion / mTBI Vision Rehab
Symptom-guided return-to-learn and vision-vestibular reintegration.
Applies to students within 12 months of a concussion / mTBI who present with post-trauma visual, oculomotor, or vestibular-visual symptoms. OT operates within scope on occupational participation; physician clearance for return-to-play remains outside OT scope.
Entry Triggers
- Rule-out screener positive for post-concussion pattern (< 90 days from injury).
- Post-Concussion Vision Symptom Scale ≥ 20, OR CISS-15 ≥ 21 with reported photophobia / motion sensitivity.
- VPA™ profile of reduced pursuits + convergence + reading endurance with symptom exacerbation.
Intake Add-Ons (in addition to standard clinical intake)
- Date of injury, mechanism, loss of consciousness / amnesia duration.
- Prior concussion history and cumulative count.
- Current medical management team (MD, ATC, PT, SLP).
- Post-Concussion Vision Symptom Scale (self + parent).
- Screen-time diary (baseline 3-day log) and current academic accommodations.
Precautions
- Never push symptoms above +2 on a 0–10 provocation scale from baseline.
- Screen every session for red flags: worsening headache, new focal weakness, vomiting, vision loss → refer to physician / ER.
- Coordinate with the school concussion team; document any change in accommodation status.
Contraindications
- Acute (< 48 h) post-injury intensive oculomotor loading.
- Undiagnosed post-traumatic seizure activity — physician clearance required.
Dosing Rules (FITT-P modifiers)
- Sub-symptom threshold dosing: begin at 50% of tolerance, advance by ≤ 10% per session.
- Break-to-symptom rule: stop the drill when provocation reaches +2 from baseline; log time-to-symptom.
- Frequency 4–5× / week short bouts > 1–2× / week long bouts (chronic loading tolerated better in fractionated doses).
Phase Model
Phase 1
Phase I — Symptom Stabilization (Weeks 0–2)
Goal: Establish sub-symptom baseline; restore basic saccade, pursuit, and near-point convergence tolerance.
Activities
- Slow horizontal + vertical pursuits, 30 s bouts, seated, no head motion.
- Small-amplitude saccades (5–10°) with rest intervals.
- Push-up NPC 3× with 60 s rest; monitor break/recovery.
- 20-20-20 rule reinforcement + Harmon working distance re-training.
Progression rule: Time-to-symptom > 60 s across 3 consecutive sessions AND self-reported symptom score ≤ 3/10 during task.
Phase 2
Phase II — Vision-Vestibular Reintegration (Weeks 2–6)
Goal: Reintroduce head motion coupled to gaze, expand saccade amplitude, restore reading endurance.
Activities
- Gaze stabilization (VOR × 1) horizontal then vertical, 30 s × 3.
- Wide-amplitude saccades (20–30°) with metronome pacing.
- Near-far accommodative rock in seated → standing positions.
- Graded reading ladder: 1 → 5 → 10 minutes at 40 cm, comprehension check every block.
Progression rule: Sustained 10 minutes of near-work at symptom score ≤ 3/10, AND VOR × 1 tolerated with no more than +1 provocation.
Phase 3
Phase III — School / Community Integration (Weeks 6–12)
Goal: Return to full academic load and, where relevant, driving-readiness pre-screen.
Activities
- Simulated classroom: board copy tasks, split-attention listening + note-taking.
- Dynamic visual acuity walking 1 m/s with fixation cards.
- Return-to-screen ladder with blue-light-neutral protocol.
- Driving-readiness saccade + peripheral awareness drill (adult / teen driver only).
Progression rule: Full academic day tolerated 3 consecutive days AND symptom log stable → transition to monitored consult.
Outcome Measures
Post-Concussion Vision Symptom Scale
Weekly re-measure; target ≥ 50% reduction from baseline.
CISS-15
Bi-weekly; secondary tracker for near-work symptom load.
COPM
Baseline + 6 wk + 12 wk. Reading, homework, screen time as target occupations.
Goal Attainment Scaling
One −2 → +2 scale per academic accommodation.
Regression Criteria
- Time-to-symptom drops by ≥ 30% across 2 consecutive sessions → return to prior phase for 3 sessions.
- New headache pattern, sleep disruption, or emotional lability → hold, coordinate with medical team.
Discharge Criteria
- Full academic day without accommodation-triggered breakdown × 10 school days.
- VPA™ Visual Efficiency composite returned to age-band expected range.
- Symptom scales at or below individual pre-injury baseline for 4 consecutive weeks.
References
- Master et al., 2016 — Vision diagnoses common after sports concussion.
- Storey et al., 2017 — VOMS clinical reliability.
- Ellis et al., 2015 — Vestibulo-ocular dysfunction in mTBI.
- CanChild Return-to-Learn protocol (2021).
Full peer-reviewed reference list with DOIs on the Technical Manual §17.