Cataracts can develop from many causes, but aging is the primary risk factor. They are caused by the cumulative effects over one's lifetime from exposure to ultra-violet rays from the sun. Some types, however, are caused by certain medications, or by trauma or by radiation, and even others are congenital. Cataracts are removed surgically by an ophthalmologist and modern surgical results are amazingly good. Dr. Lai is able to consult with you on your options related to cataracts surgery.