A prospective, randomized comparison of thermal cautery and argon laser for permanent punctal occlusion

Am J Ophthalmol. 1993 Oct 15;116(4):469-71. doi: 10.1016/s0002-9394(14)71406-0.


Permanent punctal occlusion was performed by two techniques on 27 patients (73 puncta). Patients were randomly assigned to be treated with either thermal cautery or argon laser for keratitis sicca. Follow-up assessment disclosed that the puncta to which thermal cautery was applied remained closed significantly longer than those to which laser treatment was applied (P < .05, log-rank test). Using time to recanalization of a punctum as the end point, we found a long-term advantage of thermal cautery over argon laser treatment.

Publication types

  • Clinical Trial
  • Comparative Study
  • Randomized Controlled Trial

MeSH terms

  • Cautery
  • Electrocoagulation*
  • Follow-Up Studies
  • Humans
  • Keratitis / surgery*
  • Lacrimal Apparatus / surgery*
  • Lacrimal Duct Obstruction*
  • Laser Therapy*
  • Prospective Studies
  • Treatment Outcome