Important advances in surgical technique and more sophisticated technology have helped make surgery a safe and effective treatment for cataracts. Two things happen during cataract surgery – the clouded lens is removed, and a clear artificial lens is implanted.
Prior to surgery, your eye doctor measures the size and shape of your eye to determine the proper lens implant power. This measurement is made with a painless ultrasound test. Cataract surgery is typically an outpatient procedure that takes less than an hour. Most people are awake and need only local anesthesia. On rare occasions some people may need general anesthesia.