Vision disturbance triage workflow
High-risk workflow for visual symptoms emphasizing stroke/ocular emergency recognition and urgent disposition.
High-risk workflowLast reviewed September 4, 2026
AI-assisted evidence review. Clinical-owner sign-off is not recorded for this update.
Scope
- Use for
- Initial triage of adult visual symptoms and urgent disposition; specialist diagnosis and definitive treatment are outside this workflow.
- Not for
- Hospital-level acute stroke or ophthalmic emergency management.
- Inpatient neuro-ophthalmology workflows.
Immediate actions
- Record onset/last known well, monocular versus binocular symptoms, duration, pain, trauma and accompanying neurologic symptoms.
- Measure visual acuity in each eye and check pupils, visual fields and a focused neurologic examination without delaying transfer.
- For chemical exposure without suspected penetrating/globe injury, start copious irrigation while arranging emergency care. Suspected open-globe injury requires protection from pressure and immediate specialist care.
Red flags: escalate now
If any of these are present, stop routine steps and follow the urgency stated. Activate emergency care for instability or findings that need immediate transfer.
- Sudden persistent vision loss or focal neurologic symptoms require immediate emergency assessment. New transient visual loss suspicious for ischemia also needs urgent stroke/TIA assessment even after recovery.
- Painful red eye with reduced vision, major trauma, or a new curtain/field defect needs emergency ophthalmic assessment; contact the receiving service immediately.
- In adults over 50, visual symptoms with new headache, jaw claudication or systemic symptoms raise concern for giant cell arteritis and require immediate specialist/ED assessment to protect vision.
First-line plan
- Activate stroke/ED or emergency ophthalmology pathways according to presentation; do not use a TIA score to postpone assessment of acute visual symptoms.
- New flashes/floaters need prompt dilated retinal assessment; reduced vision or field loss increases urgency. Confirm the specialist's required timeframe, using the ED if timely assessment is unavailable.
- For suspected giant cell arteritis with visual symptoms, urgently coordinate the glucocorticoid/diagnostic pathway with the receiving clinician; this workflow does not provide a prescribing regimen.
Follow-up and monitoring
- Confirm the receiving service, appointment/transfer time and responsibility for reassessment; an unconfirmed referral is not a completed handoff.
- Advise against driving with impaired vision and arrange safe transport.
- New loss, pain or neurologic symptoms requires immediate reassessment while awaiting care; routine follow-up is reserved for stable symptoms after urgent causes have been assessed.
Linked resources
Referral checklists
Condition guidance
Before the patient leaves
Return precautions you can say as written:
“If symptoms get worse, new warning signs appear, or you cannot follow the plan from this visit, seek urgent care now.”
About this workflow
- Clinical owner
- Family Medicine Editorial Team
- Risk tier
- High
- Review cadence
- Every 3 months
- Last reviewed
- September 4, 2026AI-assisted evidence review. Clinical-owner sign-off is not recorded for this update.
- Review status
- Evidence current. Next review due December 4, 2026.
References
- Canadian Stroke Best Practices TIA and non-disabling stroke assessment (2022) (opens in a new tab)
- Emergency Care BC Acute vision loss (2018) (opens in a new tab)
- Emergency Care BC Flashes, floaters and visual field deficits (2024) (opens in a new tab)
- Emergency Care BC Giant cell arteritis (2024) (opens in a new tab)
- Emergency Care BC Caustic injuries (2022) (opens in a new tab)
- BC Emergency Health Services Eye injuries (opens in a new tab)