Cataracts are formed when the clear lens inside your eye becomes cloudy or misty. This is a gradual process that usually happens as we get older. It does not hurt.

The early stages of a cataract do not necessarily affect your sight.

The only proven treatment for a cataract is surgery. If the cataract gets to the stage where it affects your sight, your optometrist will refer you to hospital to have this done. The surgery is carried out under a local anaesthetic and has a very high success rate.