Eye Health

What are Cataracts?
A cataract is a clouding of the lens in your eye and can develop in one or both eyes. The lens is normally clear and sits behind the iris - the coloured part of the eye. The lens helps focus light to produce a sharp image on to the retina at the back of the eye and changes shape to allow you to see close objects. A cataract acts like a frosted glass coating that scatters light, causing blurring and lack of clarity.

What are the symptoms of Cataracts?
Cataracts are painless and usually cause a gradual worsening of sight. The main symptoms are:

  • Blurring: Your vision may become misty or blurry so that you cannot see details at a distance, or your glasses seem scratched and dirty.
  • Dazzled by lights: You may find that you have poor vision in bright light, suffer from glare, and that bright lights such as car headlights are more blinding than usual.
  • Double vision: You may start to notice double vision for either close or distance objects.
  • Changes in colour vision: You may notice that colours appear faded or washed out.

We recommend that you have an eye test every two years, unless your Optician advises otherwise.

Sight Test Intervals

Where can I find out more information?
Royal National Institute of Blind People www.rnib.org.uk