Medicines
Aflibercept
Aflibercept is injected into the eye by a specialist to treat wet age-related macular degeneration and some other eye conditions that cause leaky blood vessels.
- Type of medicine
- Anti-VEGF eye injection
- Also known as
- Eylea
- Comes as
- injection into the eye
- How you get it
- Given in hospital or by a specialist team
What it is used for
- Wet age-related macular degeneration (wet AMD)
- Swelling at the back of the eye caused by diabetes (diabetic macular oedema)
- Swelling caused by a blocked vein in the eye (retinal vein occlusion)
- Abnormal blood vessels caused by severe short-sightedness (myopic choroidal neovascularisation)
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Off-label uses
Doctors sometimes prescribe a medicine for a condition it is not officially licensed for. This is called off-label use. It is legal and common when there is good evidence it helps, and your doctor should explain why they are suggesting it.
Aflibercept is not commonly used off-label.
How it works
In these conditions, a protein called vascular endothelial growth factor (VEGF) makes fragile new blood vessels grow and leak in the back of the eye. Aflibercept traps VEGF, which stops the vessels leaking and growing. This helps protect your sight.
Side effects
Like all medicines, Aflibercept can cause side effects, although not everyone gets them. Many are mild and ease after the first few weeks.
Common side effects
- a red or bloodshot eye
- eye pain or discomfort
- floaters or specks in your vision
- blurred vision for a short time after the injection
Tell your doctor or pharmacist if these bother you or do not go away.
Serious side effects
These are rare. Call 111 or contact your doctor straight away if you get:
- eye pain that gets worse, increasing redness, sensitivity to light or worsening vision in the days after an injection, which can be signs of an infection
- sudden loss of vision or flashing lights
Call 999 if you have signs of a serious allergic reaction, such as swelling of your lips, mouth, throat or tongue, or trouble breathing.
You can report any side effect to the Yellow Card scheme, run by the medicines regulator.
Stopping and withdrawal
Important safety information
- Go to eye casualty or call 111 straight away if your eye becomes painful or your vision gets worse after an injection.
- You must not drive straight after an injection because your vision may be blurred.
Questions about your medicine?
A pharmacist can answer questions about your medicines for free, without an appointment. You can also ask your GP for a medication review. Check if you can get free prescriptions.
Official information
Last checked 5 October 2026. Tell us if something looks wrong.
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