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Subconjunctival Haemorrhage

What causes a subconjunctival haemorrhage?

The conjunctiva is like a thin 'skin' on the front of the eyeball. It covers the white part of the eye (the sclera) but does not cover the central part of the eye (the cornea). In between the conjunctiva and the sclera run tiny blood vessels. If you look closely at the sclera you may just be able to see a few tiny blood vessels. If one of these tiny blood vessels bursts, it bleeds in between the conjunctiva and the sclera. This bleed is called a subconjunctival haemorrhage.

In most people there is no apparent cause. It just happens. Older people tend to have them most.

Occasionally, an injury to the eye or a head injury can cause one. Sometimes they happen after a bout of coughing or being sick. They are rarely caused by high blood pressure. If you have a bleeding disorder, you may be more prone to having a subconjunctival haemorrhage.

What is the treatment?

No treatment is needed. They usually fade and disappear within two weeks. But mention to your doctor if:

  • You have not had your blood pressure checked recently.
  • You suspect an injury to your eye is the cause, for example, a small bit of flying metal.
  • You have noticed any other unusual bleeding or bruising on your body for no good reason.

What can you do at home to help?

  • Wearing sunglasses may help reduce light sensitivity
  • Avoid rubbing or touching your eye

Help with pain management

Simple analgesics can be used after injury, most of which can be bought over the counter in shops, supermarkets or pharmacy’s. Examples are:

  • Paracetamol
  • Ibuprofen

You may have been prescribed an alternative pain killer, please refer to specific advice for that tablet if this is the case.

When to seek further help?

In most cases, you will not need to return for a further check-up. However, contact your GP or NHS 111 if:

  • Your eyesight becomes more blurred over time, or
  • The pain and redness are getting a lot worse.

 If you feel this is an emergency then go to your local Emergency Department

Accessible Information

If you need this information in another format or language and are in the hospital, please ask a member of staff. If you are accessing this leaflet online or on your phone you can see our Google Translate automated guidance on the Digital Patient Information Hub home screen.

Smoking

Bradford Teaching Hospitals NHS Foundation Trust is a smoke-free organisation. You are not permitted to smoke or in use e-cigarettes in any of the hospital buildings or grounds.

Published by
, Bradford Royal Infirmary, Duckworth Lane, Bradford BD9 6RJ.

Date of publication: Jun 2024
Review Date: Jun 2026
MID Ref: 24061204