advertisement
Abstract #27562 Published in IGR 12-4
Patterned laser trabeculoplasty
Turati M; Gil-Carrasco F; Morales A; Quiroz-Mercado H; Andersen D; Marcellino G; Schuele G; Palanker DOphthalmic Surgery Lasers and Imaging 2010; 41: 538-545
BACKGROUND AND OBJECTIVE: A novel computer-guided laser treatment for open-angle glaucoma, called patterned laser trabeculoplasty, and its preliminary clinical evaluation is described. PATIENTS AND METHODS: Forty-seven eyes of 25 patients with open-angle glaucoma received 532-nm laser treatment with 100-(mu) m spots. Power was titrated for trabecular meshwork blanching at 10 ms and subvisible treatment was applied with 5-ms pulses. The arc patterns of 66 spots rotated automatically after each laser application so that the new pattern was applied at an untreated position. RESULTS: Approximately 1,100 laser spots were placed per eye in 16 steps, covering 360(degrees) of trabecular meshwork. The intraocular pressure decreased from the pretreatment level of 21.9 (plus or minus) 4.1 to 16.0 (plus or minus) 2.3 mm Hg at 1 month (n = 41) and remained stable around 15.5 (plus or minus) 2.7 mm Hg during 6 months of follow-up (n = 30). CONCLUSION: Patterned laser trabeculoplasty provides rapid, precise, and minimally traumatic (subvisible) computer-guided treatment with exact abutment of the patterns, exhibiting a 24% reduction in intraocular pressure during 6 months of follow-up (P < .01). Copyright (copyright) SLACK Incorporated.
D. Palanker. Stanford University, 445 Lomita Mall, Stanford, CA 94305-4085, United States. palanker@stanford.edu
Classification:
12.4 Laser trabeculoplasty and other laser treatment of the angle (Part of: 12 Surgical treatment)