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  • Title: Repeatability of selective laser trabeculoplasty.
    Author: Polat J, Grantham L, Mitchell K, Realini T.
    Journal: Br J Ophthalmol; 2016 Oct; 100(10):1437-41. PubMed ID: 26834070.
    Abstract:
    PURPOSE: To determine the intraocular pressure (IOP)-lowering efficacy of repeat 360° selective laser trabeculoplasty (SLT) in patients with open-angle glaucoma having undergone prior successful 360° SLT. METHODS: A retrospective chart review of 38 eyes of 38 patients with open-angle glaucoma (primary, pseudoexfoliation or pigmentary glaucoma) uncontrolled on medical therapy who had undergone two successive 360° SLT treatments, in whom first SLT was deemed clinically successful through a minimum of 6 months follow-up and who were followed for a minimum of 30 days after second SLT. Mean IOP at each postoperative time point (1, 3, 6, 12, 18 and 24 months) was compared with baseline using paired t tests. IOP changes after initial and repeat SLT were evaluated separately. RESULTS: Mean (SD) baseline IOP before initial SLT was 21.6 (4.8) mm Hg. Mean IOP following initial SLT was significantly below baseline through 24 months of follow-up, with mean IOP at months 1-24 ranging from 15.9 to 18.6 mm Hg. Mean baseline IOP before repeat SLT was 19.1 (3.9) mm Hg, with a significant reduction in IOP from baseline through 24 months follow-up with mean IOP ranging from 14.7 to 17.0 mm Hg. Kaplan-Meier survival analysis showed longer median survival time for repeat SLT compared with initial SLT. No safety issues were observed with repeat SLT. CONCLUSIONS: Repeat SLT can restore IOP control in eyes with open-angle glaucoma that have previously undergone successful initial SLT. Repeat SLT achieves comparable absolute level of IOP control achieved by initial SLT.
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