What is a cataract?

A cataract is clouding of the lens inside the eye and is extremely common after the age of 65yrs. Cataracts can result in significant visual impairment including blurred distance or reading vision, glare with bright lights or rarely a "split" vision. A change of spectacles, especially stronger reading glasses, may initially improve vision but cataracts tend to cause progressive blurring which can only be partly helped by using glasses.