A clinical comparison of transscleral cyclophotocoagulation with neodymium: YAG and semiconductor diode lasers.

Journal Article (Clinical Trial;Journal Article)

PURPOSE: To compare the efficacy of transscleral cyclophotocoagulation using a neodymium: YAG (Nd:YAG) or semiconductor diode laser in controlling intraocular pressure in patients with refractory glaucoma. METHODS: In a prospective study, 95 eyes of 91 patients with refractory glaucoma randomly received Nd:YAG or diode cyclophotocoagulation. Patients were followed for a mean of 10.4 months (10.42 +/- 3.16, mean +/- SD). We compared available data preoperatively and at 1 week, 1 month, 6 months, and 12 months postoperatively. Data analyzed were corrected visual acuity, intraocular pressure, and the type of glaucoma. RESULTS: There was a statistically significant decrease in intraocular pressure after both Nd:YAG and diode cyclophotocoagulation at each time period. However, there were no significant differences in postoperative intraocular pressure or visual acuity change between Nd:YAG and diode procedures. CONCLUSIONS: Compared with the Nd:YAG laser for transscleral cyclophotocoagulation, the diode laser has technological advantages including portability, durability, and smaller size, while providing equivalent postoperative intraocular pressure and visual acuity change.

Full Text

Duke Authors

Cited Authors

  • Youn, J; Cox, TA; Herndon, LW; Allingham, RR; Shields, MB

Published Date

  • November 1998

Published In

Volume / Issue

  • 126 / 5

Start / End Page

  • 640 - 647

PubMed ID

  • 9822227

International Standard Serial Number (ISSN)

  • 0002-9394

Digital Object Identifier (DOI)

  • 10.1016/s0002-9394(98)00228-1


  • eng

Conference Location

  • United States