If you have a cataract it means the natural lens in your eye is cloudy. In a cataract operation your surgeon will remove the cloudy lens and put an artificial clear lens in its place.Your lens sits behind the coloured part of your eye (the iris) and helps you to see things in focus.
When you look at something, light comes into your eye through the hole in the centre (the pupil) and passes through the lens to the back of the eyeball (the retina).The light is then changed i…