The LENS (or CRYSTALLINE LENS) inside the eye helps to focus light on the retina, allowing us to see. In order to see well, this lens must be perfectly clear. If the lens loses its clarity, it is called a CATARACT. Cataracts are a common cause of vision loss. Although they are most common in older individuals, cataracts can develop at any age. In fact, babies are rarely born with cataracts.

Sooner or later, if we live long enough, we all develop cataracts. Ninety-five percent of people over the age of 65 have some degree of cataract formation. Cataracts develop faster in some people than in others. A variety of factors can cause cataracts to develop sooner than they would otherwise. These include: diseases such as diabetes, medicines such as cortisone (steroids), and inflammation or injuries to the eye.

When a cataract gets to the point where it interferes with someone's ability to see well, a CATARACT OPERATION is done. In this operation, the cataract is removed, clearing the pathway for light entering the eye. To make sure that the light is focused well, an artificial lens, called a LENS IMPLANT is usually placed inside the eye during the operation. This lens is put in the same position where the CRYSTALLINE LENS was, and stays inside the eye, permanently. It is estimated that over a half million cataract operations are done in the United States, alone, each year.

When a cataract operation is performed, vision can be returned to normal. Thus, people who would otherwise be severely disabled can continue to be productive and independent after cataract surgery.

Copyright, 1997. Richard E. Gans, M. D.

Click here to send email to Dr. Gans

Click here to return to the Gans & Martyn, M.D.s, Inc. Home Page