Condition

Black eye (eye bruise)

Medical reviewer Mr Mohamed Mohyudin, Consultant Ophthalmic SurgeonArticle reviewed

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Black eye at a glance

Side-view diagram of the eye with the eyelid and eye socket (orbit) highlighted: the parts of the eye involved in a black eye.
Where it affects the eye: Eyelid and eye socket (orbit). Simplified side view of the eye. It shows location, not how severe a condition is.
Part of the eye
Eyelid and eye socket (orbit)
Common signs
  • Swelling and bruising of the eyelids
  • Discolouration that may spread to the cheek
  • Tenderness and mild discomfort
  • Sometimes a small cut on the skin
Condition group
Eyelid conditions
Medical code (ICD-10)
S00.1

What is a black eye?

A black eye happens when small blood vessels under the skin around the eye leak after trauma, causing blue-black discolouration and puffiness. The bruise may spread and change colour as it heals.

Symptoms of a black eye

Symptoms follow a knock to the face or eye area.

  • Swelling and bruising of the eyelids
  • Discolouration that may spread to the cheek
  • Tenderness and mild discomfort
  • Sometimes a small cut on the skin

When a black eye needs urgent care

Most black eyes are superficial, but a hard blow can damage the eye itself. Seek urgent assessment for double vision, blurred vision, blood inside the eye, numbness, severe pain, vomiting after head injury, or if the injury was from a high-speed object.

Self-care

Apply a cold compress for 10 to 15 minutes several times in the first 24 to 48 hours. Do not press on the eye. After 48 hours, warm compresses may help bruising fade. Avoid sport until swelling settles and vision feels normal.

Frequently asked questions

How long does a black eye take to heal?

Swelling often peaks in 48 hours and bruising usually fades over one to two weeks. See a clinician if vision is affected or pain is severe.

When is a black eye serious?

It can be serious if the blow damaged the eye or bones around it. Seek urgent care for vision changes, severe pain, blood in the eye, or head injury symptoms.

Should I put ice on a black eye?

Yes, a cold compress in the first 48 hours helps reduce swelling. Avoid pressing on the eyeball itself.

Your next step

Take this to your appointment

Write down what has changed, when it started, your current medicines and the questions you want answered. Take these to your eye-care appointment.

Sudden loss of sight, severe eye pain or a dark curtain across vision needs immediate assessment. Do not wait to complete a worksheet.

Sources for this information

These references support the information on this page. Follow the linked source for its full context.