Cataract surgery Q&A 

What is a cataract?

If you have a cataract, the natural, clear lens in your eye has become cloudy so your sight will be blurred - you might see halo-like rings around lights. In a cataract operation, a surgeon will remove the cloudy lens and put in an artificial plastic one which can help get rid of these problems.

What happens during the operation?

In the hospital operating theatre, you will lie on a trolley, with a pillow to hold your head. Drops will be put in your eye to widen the pupil and make the operation easier.

Anaesthetic drops or an injection near the eye will numb the area, which may sting a little. A sedative may also be given to help you relax. Very occasionally, people have a general anaesthetic to make them sleep.

You will have to lie still and not speak and a nurse will explain how to signal if you feel uncomfortable. During the operation, you will probably see flashes or catch a glimpse of the surgical instruments. People usually don't find these things unpleasant.

And after the operation?

After a rest, you can go home (no driving until you have had a check-up). If you had a sedative, someone should stay with you for 24 hours. You will need eye drops every day for several days or weeks. After a few days, you should be able to see things in the distance without glasses.

What are the benefits of having the operation?

Removing cataracts can help you see better and many people enjoy life much more after the procedure. Sometimes a cataract may need to be removed even though it is not affecting your sight very much. This is because the cataract could be in the way if you have another eye problem that needs treating. A few weeks after the operation, nine in ten people can see well enough to drive.

What other treatments are there?

Having an operation is the only way to remove your cataract and improve your sight. New glasses, brighter lighting, anti-glare sunglasses or magnifying lenses might help for a while, but these will not stop a cataract getting worse.

What will happen if I choose not to have an operation?

Without an operation your sight will gradually get worse. Cataracts usually develop slowly. If your cataract isn't interfering with your daily life, you may choose not to have your operation straight away.

Is there anything I can do to help prevent cataracts?

Yes. Stopping smoking reduces the risk of developing cataracts.