The excimer laser used in LASIK surgery is a cold energy laser with no thermal effect on the tissue. By relying on this precise vaporization, a precise layer of the cornea can be cut away, but with no adverse effect on the structure of the cornea. It proves that if the myopia is relatively stable before treatment and the anterior and posterior diameters of the eye are no longer elongated, myopia will not reappear after treatment. The treatment is stable and permanent because the flattened front surface of the eye does not regenerate and become convex again with this wonderful laser. To date, more than 20 million myopic eyes worldwide have undergone LASIK surgery. World-class celebrities such as Tiger & Middot; Woods and Cindy Crawford have all regained their freedom of vision through the procedure.