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临床试验/NCT01972191
NCT01972191已完成不适用

Comparison of Three Corneal Horizontal Marking Techniques Using iTrace™

Yonsei University1 个研究点 分布在 1 个国家目标入组 156 人开始时间: 2012年10月最近更新:
适应症

试验速览

阶段
不适用
状态
已完成
入组人数
156
试验地点
1
主要终点
The vertical height deviation and rotational axis misalignment amount of each three marking techniques, evaluated by iTrace surgical workstation.

研究概览

简要总结

Before astigmatism reducing surgery, accurate corneal horizontal marking before surgery is important. Due to new corneal topographic method, iTrace™ surgical workstation, precise evaluation of corneal horizontal marking is available. In this study the investigators compared three known corneal horizontal making techniques and evaluate accuracy of each methods using iTrace™.

研究设计

研究类型
Observational
观察模型
Cohort
时间视角
Retrospective

入排标准

年龄范围
50 Years 至 86 Years(Adult, Older Adult)
性别
All
接受健康志愿者

入选标准

  • Patients who were scheduled to have cataract surgery
  • Age between 50 to 85 years

排除标准

  • With an underlying corneal or conjunctival disorder

结局指标

主要结局

The vertical height deviation and rotational axis misalignment amount of each three marking techniques, evaluated by iTrace surgical workstation.

时间窗: Within 10 minutes after corneal horizontal marking.

Nasal and temporal marked spots saved in iTrace surgical workstation program.

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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