Neodymium: YAG laser iridotomies--short-term comparison with capsulotomies and long-term follow-up

Graefes Arch Clin Exp Ophthalmol. 1988;226(1):49-54. doi: 10.1007/BF02172718.


This study addresses three aspects of anterior segment Nd:YAG laser treatment--acute endothelial damage, as assessed by endothelial specular photomicrography (ESP), acute and long-term intraocular pressure (IOP) changes, and long-term iridotomy patency. The acute ESP and IOP changes in 26 eyes (21 patients) after Nd:YAG laser iridotomies were compared to 39 eyes (37 patients) after Nd:YAG laser capsulotomy. Similar endothelial damage occurred in both groups, although less damage was noted in the group of 9 eyes in which capsulotomies were undertaken in the presence of an intraocular lens. In a parallel study 53 eyes (44 patients) were followed for a mean of 83 weeks (19 months) from the time of Nd:YAG iridotomy. There were no late closures and no late rises in IOP. The level of acute IOP rise after treatment did not predict long-term IOP. We conclude that Nd:YAG iridotomy is an effective procedure in the long-term, and that both iridotomy and capsulotomy are accompanied by noteworthy acute endothelial changes and intraocular pressure rises.

Publication types

  • Comparative Study
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Cornea / pathology
  • Endothelium / pathology
  • Follow-Up Studies
  • Glaucoma / surgery
  • Humans
  • Intraocular Pressure
  • Iris / surgery*
  • Laser Therapy*
  • Lens, Crystalline / surgery*
  • Ocular Hypertension / etiology
  • Postoperative Complications