What is cataract?
A cataract is the clouding of the eye lens.
This means that the images on the retina become less sharp. Double vision, blurred vision or rings around a light source are commonly occurring symptoms of the disorder.
In most cases cataracts occur in people over the age of 55 with poor vision.
Cataracts can sometimes also be the result of damage to the eye or of a disease, such as diabetes mellitus.