Types of refractive surgery The two most common refractive surgery procedures are Laser in situ keratomileusis (LASIK) Photorefractive keratectomy (PRK) Other refractive surgeries include Small incision lenticule extraction (SMILE) Phakic intraocular lenses (IOL) Corneal inlays Clear lensectomy Intracorneal ring segments (INTACS) Radial keratotomy Astigmatic keratotomy Laser In Situ Keratomileusis (LASIK) In LASIK, a flap of corneal tissue is created with a femtosecond laser or mechanical microkeratome.