The natural lens in our eyes should be perfectly clear when we are born. There are exceptions such as congenital cataracts, certain opacities caused by drugs, trauma and unusual changes that happen idiopathically. However, most people are born with clear lenses. This lens has two main functions. The first is to focus light onto the retina. The second is to filter out Ultraviolet light from reaching the inner parts if the eye. As time passes the lens will become yellow as it absorbs the high energy light. This change is called cataractogenesis which is the making of a cataract. When the lens becomes so hazy that one's vision is reduced then surgery is required in order to improve the visual acuity.

The procedure will remove the altered natural lens and replace it with a synthetic Intraocular Implant. This is a permanent correction that will dramatically improve the patient's vision. The implant is placed behind the iris in the eye and is held in place by the posterior surface of the original lens. In approximately 50% of the cases this membrane will become hazy and make it appear that the lens and cataract have grown back. The vision will become hazy, blurry and there may even be some double vision. This is often referred to as a "secondary cataract". Fortunately, the treatment is very easy and highly effective.

In order to improve the vision a Yag laser is employed to make a hole in this membrane and eliminate the haziness. The procedure takes a few seconds and permanently solves the problem. In order to have this therapy the patient must wait until after the post op period which is 45 days after the surgery.