WHAT CAUSES A CATARACT?
Cataracts develop for a number of reasons, but the most common cause is aging. Age-related cataracts develop as a result of natural changes within the lens. In other cases, an injury or blow to the eye may cause a traumatic cataract. Some cataracts may also result from the use of certain drugs, exposure to harmful chemicals or excessive amounts of ultraviolet radiation, or some diseases. In addition, a small number of babies are born with congenital cataracts as a result of unusual prenatal factors. Very infrequently, cataracts can develop during childhood. Fortunately, almost all cataracts can be successfully removed and vision restored through modern microsurgery.
