Intraocular Pressure-Lowering Potential of Subthreshold Selective Laser Trabeculoplasty in Patients with Primary Open-Angle Glaucoma

Purpose. To compare the efficacy of subthreshold and conventional selective laser trabeculoplasty (SLT) in lowering intraocular pressure (IOP) in the patients with primary open-angle glaucoma (POAG). Methods. Fifty-two eyes from fifty-two POAG patients were randomized into two groups, one group trea...

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Main Authors: Hong Yang Zhang, Yong Jie Qin, Yang Fan Yang, Jian Gang Xu, Min Bin Yu
Format: Article
Language:English
Published: Wiley 2016-01-01
Series:Journal of Ophthalmology
Online Access:http://dx.doi.org/10.1155/2016/2153723
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author Hong Yang Zhang
Yong Jie Qin
Yang Fan Yang
Jian Gang Xu
Min Bin Yu
author_facet Hong Yang Zhang
Yong Jie Qin
Yang Fan Yang
Jian Gang Xu
Min Bin Yu
author_sort Hong Yang Zhang
collection DOAJ
description Purpose. To compare the efficacy of subthreshold and conventional selective laser trabeculoplasty (SLT) in lowering intraocular pressure (IOP) in the patients with primary open-angle glaucoma (POAG). Methods. Fifty-two eyes from fifty-two POAG patients were randomized into two groups, one group treated with subthreshold SLT using two-thirds of the conventional energy and the other one treated with the conventional energy. IOP was measured with the Goldmann tonometer and the anterior chamber inflammation was determined using laser flare meter. Results. The initial energy dosage used in subthreshold SLT group was significantly lower than the amount of the energy used in conventional SLT group (0.4±0.1 mJ versus 0.6±0.1 mJ, P=0.030). The total energy dosage was also significantly lower in subthreshold SLT group compared to the other group (37.6±3.3 mJ versus 51.8±5.7 mJ, P=0.036). However, the level of inflammation in aqueous humor, amount of reduction in IOP, and the success rate in controlling IOP was the same in both groups. Conclusion. The efficacy of subthreshold SLT group in reducing IOP in POAG patients is comparable to the efficacy of conventional SLT group.
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series Journal of Ophthalmology
spelling doaj-art-8da30f0692cd43dc8b531a810b4a9bd12025-08-20T03:37:54ZengWileyJournal of Ophthalmology2090-004X2090-00582016-01-01201610.1155/2016/21537232153723Intraocular Pressure-Lowering Potential of Subthreshold Selective Laser Trabeculoplasty in Patients with Primary Open-Angle GlaucomaHong Yang Zhang0Yong Jie Qin1Yang Fan Yang2Jian Gang Xu3Min Bin Yu4Department of Ophthalmology, Guangdong Eye Institute, Guangdong General Hospital and Guangdong Academy of Medical Sciences, Guangzhou 510080, ChinaDepartment of Ophthalmology, Guangdong Eye Institute, Guangdong General Hospital and Guangdong Academy of Medical Sciences, Guangzhou 510080, ChinaZhongshan Ophthalmic Center, State Key Laboratory of Ophthalmology, Sun Yat-sen University, Guangzhou 510060, ChinaZhongshan Ophthalmic Center, State Key Laboratory of Ophthalmology, Sun Yat-sen University, Guangzhou 510060, ChinaZhongshan Ophthalmic Center, State Key Laboratory of Ophthalmology, Sun Yat-sen University, Guangzhou 510060, ChinaPurpose. To compare the efficacy of subthreshold and conventional selective laser trabeculoplasty (SLT) in lowering intraocular pressure (IOP) in the patients with primary open-angle glaucoma (POAG). Methods. Fifty-two eyes from fifty-two POAG patients were randomized into two groups, one group treated with subthreshold SLT using two-thirds of the conventional energy and the other one treated with the conventional energy. IOP was measured with the Goldmann tonometer and the anterior chamber inflammation was determined using laser flare meter. Results. The initial energy dosage used in subthreshold SLT group was significantly lower than the amount of the energy used in conventional SLT group (0.4±0.1 mJ versus 0.6±0.1 mJ, P=0.030). The total energy dosage was also significantly lower in subthreshold SLT group compared to the other group (37.6±3.3 mJ versus 51.8±5.7 mJ, P=0.036). However, the level of inflammation in aqueous humor, amount of reduction in IOP, and the success rate in controlling IOP was the same in both groups. Conclusion. The efficacy of subthreshold SLT group in reducing IOP in POAG patients is comparable to the efficacy of conventional SLT group.http://dx.doi.org/10.1155/2016/2153723
spellingShingle Hong Yang Zhang
Yong Jie Qin
Yang Fan Yang
Jian Gang Xu
Min Bin Yu
Intraocular Pressure-Lowering Potential of Subthreshold Selective Laser Trabeculoplasty in Patients with Primary Open-Angle Glaucoma
Journal of Ophthalmology
title Intraocular Pressure-Lowering Potential of Subthreshold Selective Laser Trabeculoplasty in Patients with Primary Open-Angle Glaucoma
title_full Intraocular Pressure-Lowering Potential of Subthreshold Selective Laser Trabeculoplasty in Patients with Primary Open-Angle Glaucoma
title_fullStr Intraocular Pressure-Lowering Potential of Subthreshold Selective Laser Trabeculoplasty in Patients with Primary Open-Angle Glaucoma
title_full_unstemmed Intraocular Pressure-Lowering Potential of Subthreshold Selective Laser Trabeculoplasty in Patients with Primary Open-Angle Glaucoma
title_short Intraocular Pressure-Lowering Potential of Subthreshold Selective Laser Trabeculoplasty in Patients with Primary Open-Angle Glaucoma
title_sort intraocular pressure lowering potential of subthreshold selective laser trabeculoplasty in patients with primary open angle glaucoma
url http://dx.doi.org/10.1155/2016/2153723
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