Changes of Corneal and Total Ocular Higher-Order Aberrations After Conventional LASIK, Femto-LASIK and PRK in Low and Moderate Myopia
试验速览
- 阶段
- 不适用
- 状态
- 尚未招募
- 入组人数
- 60
- 主要终点
- Changes of corneal higher-order aberrations
研究概览
简要总结
This prospective comparative interventional study will enroll patients with low and moderate myopia who seek laser vision correction at Sohag Center for LASIK and Corneal Surgeries, Sohag, Egypt. Eyes included will be divided into 3 groups according to the type of refractive surgery used (conventional LASIK, Femto-LASIK and PRK) and each group will be subdivided into 2 groups according to the degree of myopia (low and moderate).
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Parallel
- 主要目的
- Screening
- 盲法
- None
入排标准
- 年龄范围
- 18 Weeks 至 45 Weeks（Child）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •Age: 18 - 45 years old.
- •Refraction:
- •Low and moderate grades of myopia will be included:
- •(According to manifest refraction) low ([0] - ≤ [-3] diopters) Moderate ([-3] - ≤ [-6] diopters) With cylinder ≤ [-1.5] diopters.
排除标准
- •Any ocular surgery or medication, corneal opacities, pregnancy, lactation and keratoconus.
研究组 & 干预措施
group 1
Conventional Lasik
干预措施: Laser refractive surgery (Procedure)
group 2
Femto LASIK
干预措施: Laser refractive surgery (Procedure)
group 3
PRK
干预措施: Laser refractive surgery (Procedure)
结局指标
主要结局
Changes of corneal higher-order aberrations
时间窗: 1 year
Corneal aberrometry will be performed using Sirius's Scheimpflug-Placido topography (CSO, Florence, Italy).
Changes of total ocular higher-order aberrations
时间窗: 1 year
Wavefront refraction will be acquired by the iDesign aberrometer (Hartmann-Shack Aberrometer)
次要结局
未报告次要终点
研究者
Ahmed Abdeen Refai
Master degree ophthalmology department faculty of medicine Sohag University
Sohag University