The Influence on Biometric Factors Changes by Different OK Lens
试验速览
- 阶段
- 不适用
- 入组人数
- 60
- 试验地点
- 1
- 主要终点
- change of Corneal Epithelium
研究概览
简要总结
Subjects fit with VST or CRT type lens are reviewed 1 day to 2 year after first wearing the lens. Ocular examinations were performed, including slit-lamp biomicroscope, uncorrected distance visual acuity (UDVA), corrected distance visual acuity (CDVA), corneal topography (Medmont E300W, Medmont Pty Ltd, Melbourne, Australia), corneal refractive power (autorefractometer, KR880, Topcon, JAPAN), corneal epithelial thickness (Optical Coherence Tomography, RTVue-XR), axial length using IOL-Master 700 (Carl Zeiss Meditec AG). To investigate corneal and retina changes caused by overnight OK lens.
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Parallel
- 主要目的
- Prevention
- 盲法
- Double (Investigator, Outcomes Assessor)
入排标准
- 年龄范围
- 8 Years 至 —（Child, Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 是
入选标准
- •Normal subjects without any history of ocular surgeries or diseases (except for refractive errors) or systemic diseases that might affect contact lens wearing. The spherical error between -1.0 and -5.0 D, cylindrical error of at most 2.0 D, and a corrected distance visual acuity of 20/20 or better.
排除标准
- •Subjects who had previously worn contact lens, were also excluded
结局指标
主要结局
change of Corneal Epithelium
时间窗: up to 1 day, 1 week,1 month
All epithelial thickness and treatment zone area record by baseline and follow up examination.
次要结局
- Axial length(up to 2 years)
研究者
Yune Zhao
Vice president of Eye Hospital of Wenzhou Medical University
Wenzhou Medical University