Urgent Eye Advice UK | When to Call 999, NHS 111 or Get Same-Day Care

If you think your sight is at immediate risk or you feel seriously unwell: call 999 or go to A&E now. This page does not replace emergency care.

When to get emergency help (do not wait). Some eye symptoms can indicate a sight-threatening condition. If any apply, seek emergency care immediately. If you are unsure, err on the side of caution and use NHS 111 (or 999 in an emergency).

Call 999 or go to A&E now if you have: sudden loss of vision (in one or both eyes); an eye injury, penetrating trauma or suspected rupture; a chemical burn or splash (rinse immediately and attend); severe eye pain with nausea or vomiting; or new neurological symptoms (face droop, weakness, confusion).

Seek same-day urgent assessment for: flashes and/or new floaters, especially with a “curtain” shadow (possible retinal detachment); a red eye with light sensitivity and reduced vision; contact-lens wear with pain, redness or discharge; sudden double vision; or post-operative worsening pain, redness, discharge or vision drop.

For sudden vision loss, eye injury, a chemical splash or severe eye pain with nausea, call 999 or go to A&E now. For new flashes and floaters, a painful red eye or worsening symptoms after recent eye surgery, get same-day assessment — in many UK areas the route is NHS 111, then your local urgent eye service.

When to seek emergency help (do not wait)

Some eye symptoms can indicate a sight-threatening condition where minutes and hours matter. The lists below are a triage guide, not a diagnosis — only an in-person assessment can confirm the cause. If you have severe pain, sudden vision change, or recent eye surgery, do not delay.

Call 999 / go to A&E now

Sudden loss of vision (in one or both eyes)
Eye injury, penetrating trauma or suspected rupture
Chemical burn or splash (rinse immediately with clean water and attend)
Severe eye pain with nausea or vomiting
New neurological symptoms (face droop, weakness, slurred speech, confusion)

Same-day urgent assessment

Flashes and/or new floaters, especially with a “curtain” or shadow across part of your vision
Red eye with light sensitivity and reduced vision
Contact-lens wear with pain, redness or discharge
Sudden double vision
Post-operative worsening pain, redness, discharge or a drop in vision after any eye surgery

Urgent advice within 24–48 hours

Foreign-body sensation that persists after rinsing
New eyelid swelling or a painful lump
Moderate discharge or crusting affecting daily life
Worsening dry eye affecting vision and comfort
Gradual blur that is noticeably worsening

This guidance is general. Only an in-person assessment can confirm the cause. New flashes, floaters or a shadow can signal a retinal detachment — a true emergency in which prompt treatment protects sight. Read more about eye floaters and when floaters are a warning sign.

NHS urgent routes in the UK (quick guide)

In the UK, urgent eye care can be accessed in several ways depending on where you live and how severe your symptoms are. The table below helps you choose the safest next step.

If you have…	Best next step	Why
Severe injury, chemical burn, sudden vision loss or severe pain	999 or A&E	Time-critical emergencies need immediate care
Flashes/floaters, a red painful eye with light sensitivity, or contact-lens pain	NHS 111 (then urgent eye service / eye casualty)	Urgent assessment reduces the risk of complications
Post-op concerns (any provider): worsening pain, redness or vision	Your surgical provider urgently, or NHS 111	Early review is vital after surgery
Less severe symptoms that are not improving (1–2 days)	GP, local optometrist, or a private appointment	Many conditions can be assessed in primary eye care

Important: service availability varies across England, Scotland, Wales and Northern Ireland. If you do not have a local “eye casualty” department, NHS 111 can direct you to the correct urgent eye service for your area.

What Eye Surgery Clinic can help with

We are a consultant-led private eye surgery service with clinics across South England, providing consultations and procedures including cataract surgery, oculoplastics (eyelid surgery), glaucoma care and macular degeneration treatment. Urgent symptoms may need NHS emergency pathways first; where it is safe and clinically appropriate, we can offer rapid assessment and onward treatment.

Cataract concerns — rapidly worsening glare or haze, new difficulty driving at night, second opinions and surgery planning, and post-cataract queries where appropriate.
Oculoplastics (eyelids) — drooping eyelids affecting vision (ptosis), in-turned or out-turned lids, watery eyes due to lid position, and benign eyelid lumps.
General ophthalmic advice — red-eye guidance and safe next steps, persistent irritation or dry-eye assessment, vision changes needing prompt review, and referral for urgent hospital assessment when needed.

Need urgent eye advice today? Request a call-back and we will guide you to the right pathway — safely and quickly. If symptoms are severe or worsening, do not wait: use 999/A&E or NHS 111.

Request an urgent call-back

How urgent triage works

Our priority is patient safety. If you request urgent advice, we triage your message to guide you towards the appropriate care route.

1. Review of symptoms

We assess the risk indicators — sudden vision loss, severe pain, trauma, chemical splash, and post-operative red flags — to understand how urgent your situation is.

2. Right pathway first

If your symptoms require emergency assessment, we advise 999/A&E or NHS 111 and your local urgent eye service. Safety always comes before convenience.

3. Rapid private appointment (if suitable)

Where it is clinically appropriate, we offer a prompt appointment for assessment and management with a consultant ophthalmologist.

4. Next-step plan

You receive clear guidance on what to do immediately, what to avoid, and what information to bring with you.

What to do while you wait

Stop wearing contact lenses unless advised otherwise.
Avoid driving if your vision is reduced.
Do not patch the eye after a chemical injury — rinse with clean water and attend urgently.
Bring a list of your current medication and eye drops.
Note when symptoms started, which eye is affected, and whether they are getting worse.

Common mistakes that cause delays: waiting “to see if it settles” after a sudden vision change; using leftover antibiotic drops without assessment; ignoring flashes or floaters with a shadow or curtain; and continuing contact-lens wear despite pain or redness.

Frequently asked questions

Is a red eye an emergency?

Sometimes. A red eye with pain, light sensitivity, reduced vision, or contact-lens use needs same-day urgent assessment. Mild redness with itching and normal vision may be less urgent, but if it worsens, seek advice. If you are unsure, NHS 111 can direct you to the right service, and you should call 999 or attend A&E if symptoms are severe.

What do new flashes and floaters mean?

Flashes and floaters can be benign, but they can also indicate a retinal tear or retinal detachment. If they are new, sudden, increasing, or you notice a shadow or curtain across your vision, seek urgent same-day assessment via NHS 111 and your local urgent eye service, or A&E if severe. Prompt treatment of a retinal tear or detachment helps protect your sight.

I have had cataract surgery and my eye is painful — what should I do?

Worsening pain, increasing redness, discharge, or a drop in vision after surgery should be assessed urgently. Contact your surgical provider immediately. If you cannot reach them, use NHS 111 or attend urgent eye care or A&E depending on severity. These symptoms can occasionally indicate infection or a pressure rise, which need same-day specialist review.

What should I do after a chemical splash to the eye?

Rinse the eye immediately and continuously with clean water or saline for at least several minutes, keeping the eye open, then attend A&E or call 999. Do not patch the eye. Take the container or details of the chemical with you if you can. Chemical injuries are time-critical, so start rinsing before you travel.

When should I call 999 rather than NHS 111?

Call 999 or go to A&E for sudden loss of vision, an eye injury or penetrating trauma, a chemical burn or splash, severe eye pain with nausea or vomiting, or new neurological symptoms such as face droop, weakness or confusion. Use NHS 111 for urgent but less immediately dangerous symptoms, such as flashes and floaters, a red painful eye, or worsening post-operative symptoms when you cannot reach your surgical provider.

Can I get a private urgent appointment instead of the NHS?

In many cases, yes. However, if your symptoms indicate an emergency or you may need hospital-based treatment, the safest route is NHS emergency care. Request an urgent call-back using the appointment form and we will advise the right pathway. We never delay emergency care to arrange a private appointment.

Should I use eye drops before I am seen?

Avoid using leftover prescription drops unless you have been told to do so. Lubricating drops can be reasonable for mild irritation, but with severe pain, light sensitivity, contact-lens wear, injury, or vision change, seek urgent assessment first rather than self-treating.

What information helps the clinician most?

The symptom start time, which eye is affected, your pain level, any vision change, contact-lens use, any injury or chemical splash, your current drops and medication, and any recent eye surgery. Including this in your message speeds up triage and helps us direct you to the safest next step.

Does this page replace emergency care?

No. This page is general guidance to help you reach the right care quickly. It does not replace emergency care. If you think your sight is at immediate risk or you feel seriously unwell, call 999 or go to A&E now.

Reviewed 30 May 2026 by the Eye Surgery Clinic consultant team. Editorial information only — not a substitute for individual medical advice. For emergencies, always use NHS 999, A&E or NHS 111.

Urgent eye advice in the UK — what to do now