Excimer laser photorefractive keratectomy.
Excimer laser photorefractive keratectomy has been used for the correction of myopia, hyperopia and astigmatism. This laser removes tissue through a process termed photoablative decomposition, in which incident photon energy is sufficient to break molecular bonds. Selective removal of tissue across the anterior corneal surface results in a change in anterior corneal curvature. The surgical outcome may be influenced also by interindividual variability in wound healing and pharmacologic interventions. The nature of the excimer laser-tissue interaction, and clinical outcomes of predictability, stability and complications of surgery for myopia are discussed in detail.
University Eye Clinic Dresden, Germany.
T
T
Seiler
P J
PJ
McDonnell
D000818:Animals; D001251:Astigmatism / Q000150:complications / Q000601:surgery; D003315:Cornea / Q000503:physiopathology / Q000601:surgery; D006801:Humans; D054018:Lasers, Excimer; D009216:Myopia / Q000150:complications / Q000503:physiopathology / Q000601:surgery*; D018903:Photorefractive Keratectomy; D011182:Postoperative Care; D011300:Preoperative Care; D016896:Treatment Outcome; D014792:Visual Acuity