Dr David Kleiman - the ultraviolet light is absorbed in the surface cells of the eye, allowing the surface tissues to be reshaped. The cool light produces virtually no damage to surrounding tissue, increasing its Safety for Vision Correction. Each pulse of the laser removes only a minute amount of corneal tissue; about the thickness of 1/500th of a human hair. Fascinating, isn't it?
LASEK - Or epi-LASIK, may be a Laser Eye Surgery option for patients with thinner corneal epithelia. A solution is used to raise the epithelium. A "bubble" forms through the center of the microkeratome, making it safe to create a flap. After the laser application, the flap is repositioned on the cornea and held in place by a soft, non-prescription contact lens.