In most of the cases It is up to the patient to decide when they want to undergo cataract surgery. It is an individual decision because each patient has different vision requirements.

In cataract surgery, the surgeon will remove the clouded lens, and in most cases replace it with a clear, plastic intraocular lens (IOL). The focusing power of the removed lens is achieved by this intraocular lens implant, which has been selected to suit the specific eye measurements of each patient.

The procedure lasts about 25 minutes, and is carried out  under either local or general anaesthetic. It usually takes several weeks for the eye to heal completely, although good vision is usually obtained shortly after surgery.