LASIK is the commonest type of laser vision correction worldwide. It is performed using a suction ring applied to the eye to secure it for the creation of a thin corneal flap on the top of the cornea with a femtosecond laser. An excimer laser is then applied under the flap to re-shape the cornea to correct your vision. The flap is gently re-positioned at the end of procedure.
LASEK and TransPRK eye surgeries are both examples of laser treatments applied directly to the surface of the cornea (without a flap). LASEK involves manually brushing away the corneal skin layer (epithelium). A more advanced technique, transepithelial PRK (TransPRK), reshapes the cornea through the epithelium. TransPRK with the Schwind Amaris 1050RS laser using SmartSurfACE technology, is a 'no-touch' technique for laser refractive surgery - applying the laser light directly to the surface of the eye means no brushing, no cutting and no flap.