Burst Blood Vessel In The Eye

A burst eye vessel can look serious, but it's usually nothing to worry about. Learn about the causes, symptoms and treatments.

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What is a burst blood vessel in the eye?

Have you just noticed a patch of blood in an eye? This can look alarming. But most of the time it's completely harmless and nothing to worry about. In this guide, you'll learn about symptoms of a blood vessel burst in the eye (known as a subconjunctival haemorrhage), causes, treatments and more.

Here's what happens when a blood vessel bursts in an eye. 

  • Sclera: These are the whites of your eyes. 

  • Conjunctiva: This is a thin, transparent layer that covers the sclera. 

  • Blood vessels: Tiny blood vessels known as capillaries are found beneath the surface of the conjunctiva. 

  • Subconjunctival haemorrhage: If a blood vessel bursts, blood will collect in the space between the sclera and conjunctiva.

Symptoms of a blood vessel burst in the eye 

Having a burst or popped blood vessel is quite common. It usually only affects one eye at a time, though it can affect both. Many people find having a patch of blood in their eyes very concerning ‑ and it's totally normal to feel worried. But rest assured that in most cases, it's nothing to worry about and will clear up by itself. 

Here are the main signs and symptoms you'll notice. 

  • Red patch on part of the eye ‑ There's a patch of red in just one part of the sclera (the whites of your eyes). The rest of the sclera looks normal. This is more common when the popped blood vessel is related to an injury.

  • Most of the eye is red ‑ Sometimes, most or all of the sclera looks red, and it can seem really alarming. This is more common when the issue is related to problems with blood vessels. 

  • Mild aching ‑ Unlike some other eye conditions that can cause redness around the eye, a burst blood vessel doesn't usually cause pain. Some people, however, do notice some mild aching or discomfort. 

  • No change in vision ‑ It's very rare for a broken blood vessel in the eye to cause any changes to your vision. Your sight should be completely normal. 

  • Gradual colour change – A burst vessel starts bright red with clear edges, then fades to brown and yellow as it heals. Just like a bruise. 

  • Discomfort ‑ Most people don't notice any pain when a blood vessel bursts in the eye. But some people find the eye feels sore or scratchy. You may also get discomfort or an ache around the eye. 

  • Popping feeling – Some feel a mild pop as it happens, but most only notice when they see it in the mirror or when someone points it out.


An optician delivers an eye test to a customer

Do these symptoms sound familiar?

If you have experienced any of the symptoms mentioned above it's worth booking an appointment with one of our optometrists.

Causes of a burst eye vessel

Burst eye blood vessels can have several causes, but often the cause is unknown.

  1. Sneezing, coughing or vomiting

    Sudden pressure from sneezing, coughing, vomiting or lifting heavy weights can raise blood pressure and cause a burst vessel in the eye. Learn more about hay fever.

  2. Contact lenses

    Putting lenses in or taking them out roughly can burst vessels. Damaged lenses can also scratch the eye. Learn more about contact lenses.

  3. Eye trauma

    Rubbing too hard, getting something in your eye, or a knock to the eye can all burst blood vessels. Learn more about the feeling of something in your eye.

  4. Eye surgery

    If you've recently had eye surgery, for things like cataracts or glaucoma, it's fairly common to get a subconjunctival haemorrhage. This might be caused by the procedure itself, or things like an anaesthetic injection in the eye. Learn more about glaucoma.

  5. Eye conditions

    Certain eye conditions might make people more likely to rub their eyes vigorously. These include things like dry eye syndrome, blepharitis and allergic reactions. Learn more about blepharitis.

  6. High blood pressure (hypertension)

    This is when the pressure of your blood against the walls of your blood vessels is too high. Various studies have shown that burst eye vessels are more common among people with high blood pressure. Learn more about ocular hypertension.

  7. Medicines that thin the blood

    Several kinds of medicine can thin your blood, and this can make subconjunctival haemorrhage more likely. These include things like warfarin, heparin and aspirin (among others).

  8. Vein‑related conditions

    Issues like diabetes or high cholesterol can make eye vessels more fragile and more likely to burst. Learn more about diabetic retinopathy.

  9. Tumours and growths

    Some eye growths can raise the risk of burst vessels. They’re often harmless but should be checked by a doctor.

  10. Getting older

    It’s more common after 50, as the tissues and fibres in the eye get more fragile with age.

  11. Periods

    This is rare, but there have been some reports of women repeatedly getting a blood vessel burst in their eyes at the start of their periods. 

  12. Rare diseases

    A burst eye vessel is also associated with a few rare diseases, including Stevens‑Johnson syndrome, hemochromatosis, Kaposi sarcoma and dermatologic vasculature diseases. Book an appointment.

Who's more likely to have a burst eye vessel?

Anyone can get a burst eye vessel. However, research shows that people aged 50+ are most affected (older women seem to get it more). This might simply be due to ageing or because they're more likely to have conditions like hypertension. Among younger people, injuries are the main cause. Studies show men get it most likely due to the physical activities they do. Book an appointment.

How is a burst blood vessel in the eye diagnosed?

Diagnosis for a burst eye vessel 

Most of the time, getting a blood vessel burst in your eye is nothing to be worried about, and it will go away by itself. It doesn't usually need medical attention. However, there are times when it is worth getting it seen by your GP or an optometrist. Your doctor or eye specialist will inspect your eye, ask about when the issue started, your medical history and any medication you take.

Repeated burst blood vessels in your eye 

If you keep getting a blood vessel burst in your eye, then it's worth getting this checked. Repeated subconjunctival haemorrhage could be a sign of more serious conditions like a vascular (vein) disorder. 

It's very painful. 

Having a popped blood vessel in your eye is usually painless, or ‑ at most ‑ a bit sore. If your eye is very painful, or if it feels like something has pierced the surface of the eye itself, you should go to A&E. You should also get medical help if your vision has changed, if you feel or are sick, see halos around lights or just generally feel unwell. Learn more about eye pain.

You had an eye injury. 

You should get medical help for any kind of physical impact to your eye, your face, or your head that also caused a burst blood vessel in your eye. There are some kinds of eye injury (such as globe rupture or retinal detachment) that could damage your sight if not treated fast. Learn more about retinal detachment.

Treatment for a burst eye vessel 

In the majority of cases, there's no specific broken blood vessel in eye treatment, and it just needs rest. It will usually clear up on its own as your body reabsorbs the blood that escaped from the capillary. The blood will usually clear up in 1‑3 weeks. 

However, there are a few things you can do to help your body recover. 

  • Avoid strenuous activities ‑ If the patch of blood appeared in your eye after strenuous exercise (like weight lifting), it's best to avoid these while the issue clears up. 

  • Get eye conditions treated ‑ Some people get burst eye vessels because they rub their eyes to help with symptoms of dry eye syndrome or blepharitis. By getting the underlying cause treated, you'll be less tempted to rub your eyes. Learn more about dry eye syndrome.

  • Use antihistamines ‑ If you get burst eye vessels because you sneeze, cough or rub your eyes a lot because of allergies, then antihistamines can help with managing allergies to things like pollen, pet hair or dust mites. 

  • Don’t wear contacts – Wait until the blood clears and your eye heals, as lenses can irritate the area. 

  • Treat other conditions – Managing issues like high blood pressure, diabetes, or high cholesterol can help prevent burst vessels. 

  • Cold compress – If your eye feels sore or tender, a chilled, damp cloth over your eyelid can help ease it. 

  • Eyedrops – Artificial tears can ease dryness or scratchiness. You can get them from pharmacies or Specsavers. 

How to put in eye drops

Our optometrists know that getting the hang of eye drops can take a bit of practice. We’ll show you how to do it step by step, so you feel confident using them at home. That includes tips for making it easier, like getting into the right position, not blinking too soon, and keeping things clean. If you ever have trouble or something doesn’t feel right, we’re always here to help.

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Preventing a blood vessel burst in the eye 

It's not always possible to avoid getting a popped blood vessel in your eye. Some things ‑ like sneezing ‑ aren't directly in your control. But the following tips might reduce your chances of it happening. 

  • Regular eye tests ‑ A broken blood vessel in the eye could be a sign of other eye and general health issues. Having regular eye checks means optometrists are more likely to pick things up sooner. 

  • Avoid straining – Build up strength slowly and get help with heavy lifting to avoid pressure that can burst eye vessels. 

  • Manage blood pressure ‑ If you have high blood pressure, speak to your GP about ways to manage this. They might suggest taking certain medications. But changes to your diet and lifestyle can also really help. 

  • Don't rub your eyes ‑ Eye rubbing is a common cause of subconjunctival haemorrhage. If your eyes feel sore and itchy, consider using a cold compress to relieve discomfort instead. 

  • Take care of contact lenses ‑ Damage to contact lenses can cause scratches that lead to burst eye vessels. Follow the care instructions on the packaging, and throw away any damaged lenses. 

  • Head and eye protection ‑ Broken blood vessels in the eye can happen when you hit your head or objects fly into your eye. Wear suitable head and eye protection at work, when doing DIY, or taking part in sports. 

Related conditions

Not sure if this is what you're experiencing? Explore some related conditions:

  • Conjunctivitis (red or pink eye)

    Conjunctivitis is a common condition caused by inflammation of the thin layer of tissue that covers the front of the eye and inner surfaces of the eyelid.

    Find out more
  • Dry Eye Syndrome

    Dry eye syndrome is a condition that happens when your eyes don’t produce enough tears or if the quality of your tears isn’t quite right.

    Find out more
  • Feeling of something in the eye

    Often it’s just dust or an eyelash, but sometimes it's a sign of something more serious, such as an eye injury which requires further care.

    Find out more

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Burst eye vessel FAQs

Written by our experts for peace of mind

https://images.ctfassets.net/zcryw81f0g1x/5mrcuMDlru21b9LMMuIQn7/34dcf1c5e9fe3ed41c4ea4077537d61f/Ross_Campbell_Northallerton.jpg

Ross Campbell

BSc Hons MCOptom Prof Cert Glauc Prof Cert Med Ret

Ross is an experienced optometrist having graduated in 2007 from Bradford University. He is also ophthalmic director of Specsavers Swaledale with Northallerton & Thirsk, a pre‑registration supervisor, professional advancement consultant, and a WOPEC Lead Assessor. He has previously worked as Director of Optometry Advancement for Specsavers and as a columnist for Optician & ProFile magazine.