Treatment

Cataract surgery

Medical reviewer Mr Mohamed Mohyudin· Last recorded site review

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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?

Anaesthetic drops or an injection numb the eye. You may notice pressure or movement, but should not feel pain during surgery. Tell the team straight away if you are uncomfortable. Mild soreness afterwards is common; increasing pain needs urgent advice.

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.

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.