An eye problem needs emergency attention if you suddenly cannot see, develop sudden severe eye pain or suffer a serious injury. Go to A&E or call 999 in these situations. Other symptoms, including new flashes or floaters, still need urgent assessment, even when they are painless.
Deciding where to seek help can feel difficult when you are worried about your sight. The important details include how quickly the problem started, whether vision has changed and whether an injury or chemical exposure is involved. You do not need to diagnose the cause before asking for help.
Goldsmith & Harvey provides eye care and examinations in Bristol, but this guide is not an invitation to book a walk-in emergency service. Follow the urgent-care advice below rather than waiting for a routine appointment or a reply to a website message.
What Eye Symptoms Require Immediate Medical Attention?
Suddenly being unable to see from one or both eyes is an emergency, whether or not it hurts. Sudden severe eye pain also needs immediate attention. NHS vision loss guidance advises going to A&E or calling 999 for either of these symptoms. Do not drive yourself to A&E.
A strong chemical in the eye, a penetrating wound or an object striking the eye at high speed also requires emergency help. Damage can be serious even when the outside of the eye does not look particularly different. Describe the accident clearly when asking for assistance.
Other warning combinations include a red eye with altered vision, pain when looking at light, or a severe headache and nausea. Recent eye treatment is relevant too: severe pain or loss of vision within four weeks of surgery or treatment requires emergency assessment.
The purpose of recognising these symptoms is to act promptly, rather than work out which disease might be responsible. Do not postpone emergency care to see whether an eye drop helps or because a routine sight test has already been booked. If symptoms change while you are seeking help, tell the service immediately.
What Can Sudden Vision Loss, Flashes or Floaters Mean?
Floaters can look like small dots, threads or cobwebs drifting through your vision. Flashes may resemble brief flickers of light. Longstanding floaters that have not changed are often harmless, but a new symptom needs a different response from something that has been stable for years.
Ask for an urgent optician appointment or contact NHS 111 if floaters or flashes appear for the first time, start suddenly or increase in number. A new dark curtain or moving shadow needs help straight away: call NHS 111 immediately and describe it clearly. Do not wait for a routine appointment. Accompanying blur or pain, or symptoms beginning after an injury or operation, also needs urgent assessment. NHS flashes and floaters advice explains why these changes should be checked quickly.
Possible causes include changes in the gel inside the eye, but some symptoms can indicate a retinal tear or detachment. You cannot reliably distinguish these causes at home. An eye-care professional can examine the eye and decide whether hospital investigation is needed.
New flashes or floaters do not automatically mean that you need an ambulance. However, if you suddenly cannot see from an eye, use the emergency A&E or 999 route immediately. Do not wait for pain to develop before seeking help for a change in vision.
When Can a Red or Painful Eye Be Serious?
Redness may occur with dryness, irritation or an infection, but the appearance alone does not tell you how serious the problem is. Consider whether there is pain, light sensitivity, a change in sight or a recent injury, rather than assuming every red eye is conjunctivitis.
If eye pain starts suddenly and is severe, go to A&E or call 999. Other very painful red eyes need urgent advice from a GP or optician, or NHS 111. A red eye in a contact lens wearer also needs urgent assessment because infection is possible. Leave contact lenses out while the eye is red and seek advice before wearing them again.
The NHS red eye guidance identifies combinations that require A&E or 999: redness with changes in vision, pain on looking at light, a severe headache with sickness, or one pupil becoming larger than the other. Very dark redness, an injury or a chemical exposure is another reason to use the emergency route.
When describing the problem, say whether it affects one eye or both and whether the discomfort is getting worse. Do not rely on a photograph or a comparison with somebody else’s symptoms to decide that assessment can wait. If you are unsure which route applies, seek urgent professional advice rather than leaving the problem until your next routine examination.
What Should You Do After an Eye Injury or Chemical Exposure?
If a strong chemical such as bleach or oven cleaner enters the eye, begin rinsing immediately with plenty of clean water. Hold the eye open and use a gentle flow of water that is not hot. Continue for at least 20 minutes while arranging emergency help; do not delay rinsing while searching for a particular eyewash product. If you wear contact lenses, remove them if they come out easily, but do not delay rinsing or struggle with a stuck lens. Keep contaminated water away from the other eye.
Go to A&E or call 999. Keep rinsing while waiting for help and, where possible, take the chemical container so the treating team can identify the substance. NHS eye injury advice gives practical first-aid instructions and explains which injuries require emergency assessment.
For an object that has pierced the eye, do not try to pull it out. Do not rub or press the eye. High-speed impacts, including incidents involving tools or mowing, also need emergency attention. Tell the clinician what happened, even if you cannot see a wound.
After an injury, changes in sight, severe pain, light sensitivity, sickness or difficulty keeping the eye open require immediate assessment. Do not drive yourself. A minor irritation and a penetrating injury need different care, so avoid trying to manage a serious accident using advice intended for a small amount of dust or shampoo.
Should You Contact an Optician, NHS 111 or Attend A&E?
Use A&E or 999 for the emergency situations described above. You do not need to contact an optician first when immediate hospital assessment is indicated. If you cannot travel safely, call 999 for help rather than driving with affected vision.
For urgent symptoms without those emergency features, an urgent optician appointment may be appropriate. Examples include new flashes or floaters and a red eye in a contact lens wearer. Explain the symptoms when calling and ask whether urgent assessment is available. A routine appointment slot is not automatically suitable for a new eye problem.
If you cannot obtain urgent advice, the practice is closed or you are unsure where to go, contact NHS 111. NHS urgent care advice explains that the service can direct you to appropriate help. In England, 111 online is available for people aged five and over; call 111 for a child under five. Arrangements elsewhere in the UK differ, so use the relevant national service when travelling.
Goldsmith & Harvey’s eye examinations support ongoing eye health, but emergency symptoms should follow the routes above. Do not wait for the practice to reopen or use a website contact form to request time-sensitive care.
What Information Should You Provide When Seeking Urgent Eye Care?
Start with the main problem and when it began. Say whether one eye or both are affected, whether it started suddenly and whether your sight is blurred, partly obscured or lost. Mention pain, redness, flashes, floaters or a shadow, and explain whether anything has changed since you first noticed it.
Tell the service about an injury, chemical exposure, contact lens wear, recent eye surgery or treatment, and any eye condition already being managed. Have details of your medicines and allergies available if possible, but do not delay emergency help to gather paperwork. If an eye team has given you an urgent contact number or care plan, make that information known.
Ask what to do next, where to attend and what to do if symptoms worsen while you are waiting. Make sure you understand any instructions about transport or bringing medicines. Clear information helps the person assessing your call decide what care is appropriate.
For questions about ongoing eye care without urgent symptoms, you can contact the team at Goldsmith & Harvey. If the problem is urgent, use the telephone or NHS pathway appropriate to your symptoms; do not wait for an online message to be answered.