ABSTRACT
Refractive surgery is a constantly changing field with new technologies being developed and introduced routinely. Currently, excimer laser photorefractive keratectomy (PRK) and excimer laser in situ keratomileusis (LASIK) are the surgical procedures most commonly being used to treat myopia (1,2). PRK changes the corneal curvature by ablating part of Bowman’s layer and anterior corneal stromal tissue after removing the epithelium. In contrast, LASIK does not remove the epithelium, Bowman’s layer, or anterior stromal tissue but does remove deep stromal tissue after making a cut into the corneal stroma at 160 µm using a microkeratome.
