title: A randomized prospective study of rhegmatogenous retinal detachment cases treated with cryopexy versus frequency-doubled Nd:YAG laser-retinopexy during episcleral surgery.
abstract: OBJECTIVE
  To evaluate the efficacy of cryopexy versus transpupillary frequency-doubled (532 nm) Nd:YAG laser-retinopexy according to anatomic and functional success and postoperative complications.
  
  
  METHODS
  Seven hundred three patients with primary rhegmatogenous retinal detachment were enrolled. They underwent scleral-buckling surgery using randomly transpupillary frequency-doubled Nd:YAG laser or cryotherapy for retinopexy: patients were observed for a period of 6 months. The primary outcome was anatomic success at 6 months. Secondary outcomes included anterior segment complications, posterior segment complications, and postoperative visual acuity.
  
  
  RESULTS
  There was no significant difference between the primary and secondary outcomes in the two treatment groups: the anatomic success rate was 83% in the transpupillary frequency-doubled Nd:YAG laser group and 83.1% in the cryotherapy group; the rate of postoperative complications and the postoperative visual acuity results are also similar in the two groups; the only barely statistically significant difference (P = 0.045) was the rate of macular holes, which were present only in five myopic patients treated with transscleral cryopexy.
  
  
  CONCLUSIONS
  Transpupillary frequency-doubled Nd:YAG laser retinopexy, as cryopexy, served as a safe and effective means of creating chorioretinal adhesion during retinal reattachment surgery. The rate of postoperative complications was not influenced by the type of retinopexy.
authors.affiliation: Department of Surgical and Medical Specialties, Section of Ophthalmology, Istitute of Statistic, University of Catania, Catania, Italy.
authors.forename: Teresio
authors.initials: T
authors.lastname: Avitabile
authors.forename: Giuseppina
authors.initials: G
authors.lastname: Bartolotta
authors.forename: Benedetto
authors.initials: B
authors.lastname: Torrisi
authors.forename: Alfredo
authors.initials: A
authors.lastname: Reibaldi
mesh_terms: D003452:Cryosurgery / Q000379:methods*; D005260:Female; D006801:Humans; D053685:Laser Therapy / Q000379:methods*; D008297:Male; D008875:Middle Aged; D011183:Postoperative Complications; D011446:Prospective Studies; D012163:Retinal Detachment / Q000601:surgery*; D012591:Scleral Buckling / Q000379:methods*; D016896:Treatment Outcome; D014792:Visual Acuity