Treatment
Cataract surgery
Clinically reviewed · Last reviewed 2026-06-13
What it is
Cataract surgery removes the natural lens of the eye once it has become cloudy (a cataract) and replaces it with a clear plastic lens called an intraocular lens. It is the only effective treatment for cataracts and is usually offered when they begin to affect your daily life.
What happens on the day
The operation is usually done as a day case under local anaesthetic, so you are awake but the eye is numb.
- Numbing drops or an injection so you feel no pain
- A tiny cut to remove the cloudy lens, often using ultrasound
- A clear artificial lens placed inside the eye
- Usually no stitches, and the whole thing takes around 15 minutes
Recovery
Most people notice clearer vision within a few days, though full settling can take a few weeks. You will usually use anti-inflammatory drops for a few weeks and avoid rubbing the eye, swimming, and heavy lifting for a short time.
Benefits and risks
The benefits are usually clearer, brighter vision and less glare. Serious complications are uncommon, but as with any operation there are small risks, such as infection or inflammation, which your surgeon will discuss with you beforehand.
Conditions this can help
Frequently asked questions
Is cataract surgery painful?
No. The eye is numbed with drops or an injection, so you should not feel pain during the operation, though you may feel mild pressure. Any soreness afterwards is usually mild.
How long does it take to recover from cataract surgery?
Many people see more clearly within a few days, with vision settling fully over a few weeks. You will usually use eye drops and take simple precautions during this time.
Am I awake during cataract surgery?
Usually yes. It is most often done under local anaesthetic while you are awake but the eye is numb, and the operation typically takes around 15 minutes.