Urgency of referral for common eye presentations

Referral urgency reflects the harm that could occur during delay, not simply the most likely diagnostic label. Start with the symptom combination, its time course and the patient's visual reserve. Severe loss in the only seeing eye, an evolving neurological deficit or an uncertain examination may justify faster assessment than a familiar diagnosis would suggest in another context. A community service can manage many minor eye conditions when commissioned and staffed for that purpose, but the referrer must know what that service can assess and how urgent escalation works outside ordinary hours.

Distinguish the decision to refer now from the time by which the patient must be examined. An urgent referral made today can still be unsafe if it enters a queue read only after the relevant deadline. Use the locally agreed pathway and directly discuss time-critical cases with the receiving service. Explain the clinical reason for urgency, the examination completed and the important uncertainties. If the intended service is closed or cannot accept the patient within the required time, use its emergency alternative rather than asking the patient to wait for the next routine clinic.

Certain actions precede the rest of the referral process. Irrigate a chemical exposure immediately while arranging help. With suspected open-globe injury, prevent pressure on the eye, avoid tonometry and removal of embedded material and use a non-compressive rigid shield. A patient with sudden visual loss and an acute neurological syndrome needs emergency stroke assessment, and strong suspicion of GCA with visual symptoms requires immediate treatment and same-day ophthalmology. A full letter chart, a fundus photograph or a completed referral form must not hold up these actions.

Red eye needs a symptom-based assessment. Discharge and mild irritation can occur with conjunctivitis, but substantial pain, photophobia, reduced acuity, corneal opacity or a distorted pupil changes the risk. Ask specifically about contact lenses and recent surgery or intraocular injection. Suspected acute angle closure or postoperative endophthalmitis warrants immediate emergency eye contact. Infective keratitis, significant uveitis or scleritis also needs prompt eye-service assessment, usually arranged that day according to severity and local triage. Do not begin an ocular steroid for an undiagnosed painful red eye merely to make symptoms settle while awaiting review.

New flashes and floaters require assessment for a retinal tear or detachment, especially with a shadow, reduced vision or a sudden increase in symptoms. Establish whether a competent dilated retinal examination has been performed; a normal direct view of the disc is insufficient reassurance. An advancing curtain or suspected detachment merits urgent retinal discussion, with the receiving team deciding the appropriate emergency pathway. A historical symptom-duration category must not be used to make a persistent unexplained loss routine simply because the patient has already waited before seeking help.

Visual presentations sometimes belong to more than one service. A resolved abrupt monocular blackout may need the TIA pathway even if a routine eye examination is normal. Ongoing homonymous field loss or other neurological signs may need emergency stroke assessment. New diplopia with severe headache, a changed pupil, neurological abnormalities, proptosis or fever needs immediate assessment, while otherwise unexplained acute diplopia still requires an emergency eye or neurological plan. Referral between specialties should be coordinated so that a patient is not repeatedly redirected while the time-sensitive component remains untreated.

Urgent macular referral has a specific purpose. New central distortion or deterioration with suspected active neovascular AMD should enter the macula pathway normally within one working day under NICE. This is distinct from sending every such patient to an emergency department, but the referral must reach a service able to confirm the diagnosis and start indicated treatment promptly, within fourteen days of referral. If the symptoms instead suggest arterial occlusion, detachment or another immediate emergency, use that pathway. Do not let an existing dry AMD diagnosis obscure a new active process.

Children require age-appropriate assessment and safeguarding awareness. A white pupil, persistent reflex asymmetry or a concerning change in visual behaviour needs prompt paediatric ophthalmic review. In England's NIPE programme, an abnormal newborn reflex leads to urgent referral and ophthalmologist review within two weeks of screening, with significant concerns discussed before discharge; an abnormal infant screen needs prompt referral for review by eleven weeks of age. These programme deadlines do not replace faster action for a clinically concerning presentation. A painful swollen eye with fever, restricted movements or proptosis needs urgent hospital assessment.

Routine referral is appropriate only when the examination and history support it. Stable cataract affecting function, a longstanding unchanged problem or another established non-urgent disorder may follow the relevant planned pathway. Record functional impact and the patient's priorities rather than basing the referral entirely on one acuity threshold. Explain what new symptoms would change the urgency. If the patient declines the proposed assessment, explore the reason, explain the foreseeable consequences in accessible language, assess relevant decision-making capacity when in doubt and document an achievable alternative safety plan.