Comparison Between Result and Side Effects of Treatment of Prolifrative Diabetic Retinopaty by Conventional and Extended Targeted Pan Retinal Photocoagolation
试验速览
- 阶段
- 2 期
- 试验地点
- 1
- 主要终点
- no leakage in widefield fluorescin angiography
研究概览
简要总结
Proliferative diabetic retinopathy (PDR) is treated with conventional pan retinal photocoagulation (PRP) which can improve the visual prognosis in this complication significantly. However , the treatment may also resulting adverse effects such as blurring of central vision, visual field constriction and disturbance in dark adaptation and contrast vision. Extended targeted retinal coagulation (TRP) to the ischemic areas may cause regression of the neovascularization while minimizing some of the risks and complication associated of treatment of PDR with these two methods.
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 主要目的
- Treatment
- 盲法
- Double (Participant, Investigator)
入排标准
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •patients with PDR condidate for photocoagulation teraphy
- •Pupil with dilatasion≥6mm
- •without privious treatment with anti VEGF drugs 3months before study
- •without privious vitroretinal sugery
- •without privoius lasertraphy
排除标准
- •To have NVI cricteria with increase of inraocular pressure
- •to have cataract or vitrus leakage which prevent lasertraphy
- •pupil smaller that 6mm
- •traditional retinal detachment
- •privious treatment with anti VEGF drugs 3months before study
- •privious PRP
- •patient unable to get wide field FAG
研究组 & 干预措施
conventional prp
干预措施: conventional prp (Procedure)
targeted PRP
干预措施: targeted prp (Procedure)
结局指标
主要结局
no leakage in widefield fluorescin angiography
时间窗: 3 months after lasertraphy
次要结局
未报告次要终点
