Nonpenetrating deep sclerectomy with YAG laser iridotomy treat primary closure angle glaucoma

Abstract

Objective To asses the result of nonpenetrating deep selerectomy with YAG laser iridotomy as surgical treatment of the pure papillary block primary angle closure glaucoma.Methods Thirty-five eyes with pure papillary block primary angle closure glaucoma were treated by YAG laser iridotomy and NPDS in succession.The main outcome measure was postoperative intraocular pressure (IOP)with an average follow-up of 18.77±10.47months(range 10-36).Success rateWasdetermined3,6,12,24,36months after the procedure.Results Mean preoperative IOP was 25.57±4.92 mmHg.Mean postoperative IOP was 13.34±4.18 mmHg at 3 months,14.49±2.83 mmHg at 6 months,14.92±4.57 mmHg at 12 months,16.77±3.45mmHg at 24 months,17.32±4.17 mmHg at 36 months.At the end offellow-up,complete SUCCESS rate was 66.1%and relative SUCCESS rate was 70.1%.Complications were micro-perforations in 6 eyes(17.14%),byphema in 2 eyes(5.57%),choroidal detachment in 2 eyes(5.57%).No cases ofendophthalmitis or shallow anterior chamber were found.Conclusions NPDS with YAG laser iridotomy appears to be an effective and safe filtering procedure in pure papillary block primary angle closure glaucoma with the advantage of having fewer complications. Key words: YAG laser iridotomy; Nonpenetrating deep sclerectomy; Pure papillary block primary closure angle glaucoma