The Effect of Refractive Errors on Central Corneal Thickness by Using Pentacam
试验速览
- 阶段
- 不适用
- 状态
- 尚未招募
- 入组人数
- 50
- 主要终点
- To find if there a correlation between refractive errors and the central corneal thickness
研究概览
简要总结
To evaluate the impact of refractive errors on the central corneal thickness obtained by Pentacam and intraocular lenses (IOL) master in eyes with different refractive errors.
详细描述
Central corneal thickness (CCT) is a key indicator of corneal health status and helps to assess corneal diseases. The normal corneal thickness is about 540 μm and mainly consists of the stroma, which is estimated at 450 μm in the center. The stroma provides vital structural integrity and plays a key role in helping maintain transparency. It has been reported, however, that CCT follows a diurnal pattern being 10 μm thicker in the morning due to reduced evaporation of water from underneath the closed eyelids
研究设计
- 研究类型
- Observational
- 观察模型
- Cohort
- 时间视角
- Prospective
入排标准
- 年龄范围
- 20 Years 至 41 Years（Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •Subjects included in this study aged between20 and 41 years, asked for refractive surgery
排除标准
- •patients with corneal scarrig or opacification.
- •Patients with corneal dystrophies.
- •Patients with keratoconus.
- •Previous ocular or refractive surgery.
- •Ocular trauma.
- •Uveitis patients.
- •Patients with history of recent contact lens wear.
结局指标
主要结局
To find if there a correlation between refractive errors and the central corneal thickness
时间窗: Baseline
Study the effect of refractive errors on central corneal thickness
次要结局
- To study if there a difference between measurement by pentacam and measurement of IOL master(Baseline)
研究者
Haidy Nayer Adly
Resident doctor
Assiut University