April 2011
Volume 52, Issue 14
ARVO Annual Meeting Abstract  |   April 2011
Randomized Clinical Trial Of Intraoperative Cryotherapy Versus Postoperative Laser Photocoagulation For Retinopexy In Scleral Buckle Surgery
Author Affiliations & Notes
  • Iuuki Takasaka
    Ophthalmology, UNICAMP, Campinas, Brazil
  • Rodrigo P. Lira
    Ophthalmology, UNICAMP, Campinas, Brazil
  • Carlos E. Arieta
    Ophthalmology, UNICAMP, Campinas, Brazil
  • Roberto Caldato
    Ophthalmology, UNICAMP, Campinas, Brazil
  • Mauricio A. Nascimento
    Ophthalmology, UNICAMP, Campinas, Brazil
  • Heitor Panetta
    Ophthalmology, UNICAMP, Campinas, Brazil
  • Footnotes
    Commercial Relationships  Iuuki Takasaka, None; Rodrigo P. Lira, None; Carlos E. Arieta, None; Roberto Caldato, None; Mauricio A. Nascimento, None; Heitor Panetta, None
  • Footnotes
    Support  None
Investigative Ophthalmology & Visual Science April 2011, Vol.52, 6149. doi:
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      Iuuki Takasaka, Rodrigo P. Lira, Carlos E. Arieta, Roberto Caldato, Mauricio A. Nascimento, Heitor Panetta; Randomized Clinical Trial Of Intraoperative Cryotherapy Versus Postoperative Laser Photocoagulation For Retinopexy In Scleral Buckle Surgery. Invest. Ophthalmol. Vis. Sci. 2011;52(14):6149.

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      © ARVO (1962-2015); The Authors (2016-present)

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Compare the rate of retinal reattachment and visual acuity resultsamong patients with rhegmatogenous retinal detachment (RRD)who underwent scleral buckle surgery with retinopexy by intraoperativecryotherapy (cryopexy) or postoperative (one month later) laserphotocoagulation (laserpexy)


86 patients with RRD with an indication for scleral buckle surgerywere randomly assigned to cryopexy or laserpexy


The rate of 1-week, 1-month and 6-months anatomical successwere similar in the two groups, respectively 93% (40 patients),100% and 100% in the cryopexy group and 95.3% (41 patients),100% and 100% in the laserpexy group. Three patients of cryopexyand 2 of laserpexy needed underwent one additional RRD surgery(pars plan vitrectomy) after primary failure at 1-week follow-up.The rate of postoperative complications were similar in bothgroups, except for eyelid edema. Visual recovery was slowerin the cryotherapy group after one month, but the differencein visual acuity after 6 month postoperative was not significant


In patients with uncomplicated retinal detachment, both techniquesof retinopexy have shown a satisfactory anatomical and functionalsuccess. The option of laserpexy offer faster visual acuityrecuperation with less postoperative complications but requiresa second intervention and more cost than cryotherapy  


Clinical Trial:

http://www.clinicaltrials.gov NCT01068379

Keywords: retinal detachment • laser • retinal adhesion 

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