A cataract is a clouding of the natural lens in your eye and affects millions of people each year, including more than half of all Americans over the age of 65. There are many causes of cataracts including genetics, nutrition, life style, medications and the normal aging process. Cataracts cause a progressive, painless loss of vision. When a cataract forms, the normally clear lens gradually becomes cloudy, making it progressively more difficult to see. This is a change in the substance of the lens and is not a film or membrane. A cataract can cause many different vision problems. Glare, especially at night, can make driving very difficult. Making out street signs or even a person's face can become difficult. It typically seems that your glasses are dirty but you just can't get them clean. Fortunately, we have a very effective treatment for cataracts.