Krypton laser trabeculoplasty. A clinical report.

Krypton red (647.1 nm) or krypton yellow (568.2 nm) laser trabeculoplasty was performed in 15 phakic eyes of 14 patients. After an average follow-up of five months, these patients had an average drop of intraocular pressure of 8.9 mm Hg. In addition, in eight of these patients studied, argon laser trabeculoplasty was performed in the opposite eye. After an average follow-up of more than five months in these eight patients, the average drop of IOP was 7.2 mm Hg in the eyes with krypton laser trabeculoplasty and 6.8 mm Hg in the eyes with argon laser trabeculoplasty. This preliminary study indicates that laser trabeculoplasty may be effectively performed with krypton wavelengths.