A cataract is a clouding of the lens inside your eye.

Developing cataracts will cause your sight to become cloudy and misty. Cataracts are treated by surgery, during which the cloudy lens is removed and replaced with an artificial lens.

We’ve put together a guide to the condition and what to expect during surgery. Our Understanding Cataracts guide is accredited by the Royal College of Ophthalmologists.

Download our full guide on cataracts as a PDF

You can also download our full guide on cataracts as a Word document
 

Do I have cataracts?

Cataracts normally develop very slowly. At first, the changes they make to your sight may be difficult to notice, but as they get worse you’ll start to notice symptoms such as:

  • You feel like your glasses are dirty and need cleaning, even when they don’t.
  • Your sight is misty and cloudy.
  • You’re more sensitive to light – bright sunlight or car headlamps may glare more.
  • Everything looks a little more washed out than it should be.

Eventually, almost all people with cataracts will find that their sight has turned misty or cloudy, and things have become difficult to see all of the time. Cataracts sometimes develop so slowly that you might not notice the changes in your vision, but when you have your regular eye test, your optometrist (also known as an optician) may detect them.