Combined Phacoemulsification and Glaucoma Implant Surgery Versus Combined Phacoemulsification and Trabeculectomy: A Randomized Controlled Trial
试验速览
- 阶段
- 4 期
- 入组人数
- 50
- 试验地点
- 2
- 主要终点
- intraocular pressure(IOP).
研究概览
简要总结
The aim of this study is to compare the effectiveness and safety of combined phacoemulsification, posterior chamber intraocular lens implantation , trabeculectomy (phacotrabeculectomy) with phacoemulsification, intraocular lens implantation and glaucoma drainage device(phacotube) in the early and intermediate control of intraocular pressure(IOP) in patients with primary open angle and angle closure glaucoma.
详细描述
Studies have pointed out racial differences in the outcome of conventional filtration surgery. Glaucoma drainage implants have been found to do well in Asian eyes but no randomized controlled trial is available to support this claim. Objectives: It is the aim of this study to compare the effectiveness and safety of combined phacoemulsification, posterior chamber intraocular lens implantation , trabeculectomy (phacotrabeculectomy) versus phacoemulsification, intraocular lens implantation and glaucoma drainage device(phacotube) in the early and intermediate control of intraocular pressure(IOP) in patients with primary open angle and angle closure glaucoma. The secondary objective is to look into the post-operative complications encountered in phacotrabeculectomy and phacotube including the additional interventions (laser suture lysis, bleb needling, antimetabolite injections, etc.) applied in both procedures being studied Study Design. Randomized controlled trial. Methods. A total of 50 Asian subjects, 21 years old and above diagnosed with primary open/angle closure glaucoma, inadequately controlled by laser and medical treatment, with significant cataract and no previous eye surgery will be randomized to two types of combined procedures, phacotrabeculectomy and phacotube. Primary outcome measure is intraocular pressure and secondary outcome measures will be visual acuity, anterior chamber depth, visual field stability or progression, glaucoma medication requirement, operative and post-operative complications and additional, secondary interventions(e.g. laser suture lysis, bleb needling, 5-FU injections, anterior chamber reformation). All subjects will be followed up for a period of 1 year.This trial may define the role of GDI as a primary surgical option for Asian patients and the first randomized clinical trial in Asia to compare two combined procedures for glaucoma and cataract namely phacotrabeculectomy and phaco-glaucoma drainage implant surgery.
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Parallel
- 主要目的
- Treatment
- 盲法
- None
入排标准
- 年龄范围
- 21 Years 至 —（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •Ø 21 years old and above Ø Primary Open Angle Glaucoma with Shaffer grade 2 or better for 360 degrees Ø Primary Angle Closure Glaucoma (occludable angles +/- PAS) Ø Inadequate IOP control despite maximum medical treatment (using at least 2 types or more antiglaucoma medications) and/or laser treatment in the presence of glaucomatous optic neuropathy on optic nerve head evaluation and corresponding visual field findings Ø Visually significant cataract with visual acuity of less than or equal to 6/12 Ø No corneal disease Ø Willing to be followed up for 1 year duration post-operatively Ø Informed consent
排除标准
- •Ø Secondary Glaucoma (Uveitic, Neovascular, traumatic, Iridocorneal Endothelial Syndrome); Congenital Glaucoma Ø Severe ocular disease like Proliferative Diabetic Retinopathy, Age-related Macular Degeneration Exudative type Ø Prior intraocular surgery(in the study eye) Ø Patients with small central island and temporal field remaining on perimetry Ø One-eyed patients or fellow eye with visual acuity of counting fingers (CF) or worse
结局指标
主要结局
intraocular pressure(IOP).
次要结局
- visual acuity,anterior chamber depth,visual field, glaucoma medication requirement, operative and post-operative complications and additional interventions(e.g.laser suture lysis, bleb