Comparison of Intraocular Pressure Measured by Goldmann Applanation Tonometry and Dynamic Contour Tonometry vs. Corvis ST Tonometer
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 109
- 主要终点
- Delta IOP
研究概览
简要总结
The study is investigating Intra ocular pressure (IOP) by Goldmann Applanation Tonometry, Dynamic Contour Tonometry, and the Corvis ST tonometer.
详细描述
The aim of the study is to approach the "true" Intra ocular pressure (IOP) by correlating the difference between IOP by Goldmann Applanation Tonometry to the IOP by Dynamic Contour Tonometry to the biomechanical parameters of the cornea measured by Corvis ST. Therefore the investigators gain new findings about the influence of the biomechanical corneal parameters on the IOP. In order to do so the investigators want to examine 50 Glaucoma eyes and 50 non-Glaucoma Eyes with Goldmann Applanation Tonometry, Dynamic Contour Tonometry, and Corvis ST.
研究设计
- 研究类型
- Interventional
- 分配方式
- Non Randomized
- 干预模型
- Parallel
- 主要目的
- Diagnostic
- 盲法
- None
入排标准
- 年龄范围
- 18 Years 至 —（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 是
入选标准
- •for the glaucoma group:
- •diagnosis of glaucoma
- •18 years old or older with no upper limit
排除标准
- •for the glaucoma group:
- •IOP lowering surgery within the last 3 weeks
- •any corneal surgery in the past
- •bad fixation
- •insufficient measurement quality with any of the study devices
- •Inclusion Criteria for the healthy control group:
- •no diagnosis of glaucoma
- •18 years old or older with no upper limit
- •Exclusion Criteria for the healthy control group:
- •any diagnosis of glaucoma
- •IOP lowering surgery within the last 3 weeks
- •any corneal surgery in the past
- •bad fixation
- •insufficient measurement quality with any of the study devices
研究组 & 干预措施
Glaucoma Eyes
Measurement of intraocular pressure (IOP)
干预措施: Measurement of intraocular pressure (IOP) (Device)
Healthy Eyes
age-matched healthy eyes as controls will undergo Measurement of intraocular pressure (IOP)
干预措施: Measurement of intraocular pressure (IOP) (Device)
结局指标
主要结局
Delta IOP
时间窗: baseline
IOP difference of Goldmann tonometer and Dynamic Contour tonometer
次要结局
- Correlation of IOP difference of Goldmann tonometer and Dynamic Contour tonometer with biomechanical corneal properties measured by Corvis ST tonometer(baseline)