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  • Title: Laser peripheral iridotomy with and without iridoplasty for primary angle-closure glaucoma: 1-year results of a randomized pilot study.
    Author: Sun X, Liang YB, Wang NL, Fan SJ, Sun LP, Li SZ, Liu WR.
    Journal: Am J Ophthalmol; 2010 Jul; 150(1):68-73. PubMed ID: 20472226.
    Abstract:
    PURPOSE: To compare the efficacy and safety of laser peripheral iridotomy with or without laser peripheral iridoplasty in the treatment of eyes with synechial primary angle-closure or primary angle-closure glaucoma. DESIGN: Randomized, controlled clinical trial. METHODS: Consecutive patients older than 40 years with synechial primary angle-closure or primary angle closure glaucoma were recruited. Eligible patients were randomized to 1 of 2 treatment options, iridotomy or iridotomy plus iridoplasty, and were followed up for 1 year. Main outcome measures were intraocular pressure (IOP), peripheral anterior synechiae, corneal endothelial cell count, and complications. RESULTS: Seventy-seven eyes (77 patients) were randomized to the iridotomy group, and 81 eyes (81 patients) were randomized to the iridotomy plus iridoplasty group. Sixty-one patients (79.2%) in the iridotomy and 65 patients (80.2%) from the iridotomy plus iridoplasty groups completed 1 year of follow-up. There were no significant differences between the groups in the baseline data. IOP was reduced from 24.66 +/- 13.76 mm Hg to 19.03 +/- 6.21 mm Hg in the iridotomy group (P < .001) and from 27.96 +/- 13.06 mm Hg to 20.45 +/- 7.26 mm Hg in the iridotomy plus iridoplasty group (P < .001). Extent of peripheral anterior synechiae was decreased by 1 more clock-hour after iridoplasty compared with that after iridotomy in the iridotomy plus iridoplasty group (P < .001). There was no significant difference in IOP, medications, need for surgery, or visual function between groups at the 1-year visit. CONCLUSIONS: In eyes with synechial primary angle-closure or primary angle-closure glaucoma, both iridotomy alone or combined with iridoplasty provide a significant and equivalent reduction in IOP. There is also a possible reduction in peripheral anterior synechiae, more so in the iridoplasty group.
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