跳至主要内容
临床试验/NCT00932191
NCT00932191终止2 期

Endothelial Cell Loss After Cataract Surgery: Comparison of a Reduced Ultrasound Technique Versus Standard Ultrasound Technique

University of California, San Francisco1 个研究点 分布在 1 个国家目标入组 39 人开始时间: 2009年7月1日最近更新:
适应症
干预措施

试验速览

阶段
2 期
状态
终止
入组人数
39
试验地点
1
主要终点
Corneal endothelial cell loss by specular microscopy after cataract surgery

研究概览

简要总结

The purpose of this study is to compare two cataract surgical technique variations for removing the nucleus of the lens (central part of the lens) in terms of damage to the inner layer of the cornea which is called the endothelium. One variation uses more ultrasound energy and the other more mechanical force to break up the nucleus.

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
Single (Participant)

入排标准

年龄范围
40 Years 至 —(Adult, Older Adult)
性别
All
接受健康志愿者
否

入选标准

  • •Visually significant moderate density cataract

排除标准

  • •Corneal or retinal pathology limiting visual potential to worse than 20/40
  • •Lens pathology including pseudoexfoliation or lens dislocation
  • •Prior intraocular surgery
  • •Age less than 40

研究组 & 干预措施

Ultrasound phacoemulsification

Active Comparator

Cataract nucleus is removed using standard amounts of ultrasound energy.

干预措施: Standard phacoemulsification (Procedure)

Reduced ultrasound phacoemulsification

Active Comparator

Cataract nucleus removal using less ultrasound energy and more mechanical energy.

干预措施: Reduced ultrasound phacoemulsification (Procedure)

结局指标

主要结局

Corneal endothelial cell loss by specular microscopy after cataract surgery

时间窗: 3 months post-operatively

次要结局

未报告次要终点

研究者

申办方类型
Other
责任方
Sponsor

研究点 (1)

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