Effect of Cycloplegia on the Refractive Status of Egyptian Children
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 388
- 试验地点
- 1
- 主要终点
- cylinder of the eye
研究概览
简要总结
Myopia is a public health problem, affecting the general population worldwide. The common modalities for correcting myopia include spectacles, contact lenses, and surgical procedures. Cycloplegic refraction is considered the gold standard for measuring refractive errors, especially in children. It has been well-established that generally myopia could be overestimated and hyperopia be underestimated if refraction was performed without cycloplegia.
研究设计
- 研究类型
- Interventional
- 分配方式
- Na
- 干预模型
- Single Group
- 主要目的
- Treatment
- 盲法
- None
入排标准
- 年龄范围
- 2 Years 至 10 Years（Child）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •Myopia or Hyperopia or compound myopic astigmatism.
- •Normal intra ocular pressure (IOP≤21 mmHg.
- •Age > 2 years and < 10 years
排除标准
- •Unwilling to participate in the study.
- •Previous ocular surgery
- •Any diagnosed ocular disease
- •History of ocular trauma
- •Irregular astigmatism on corneal topography.
研究组 & 干预措施
Cycloplegic refraction
All refractions were measured before and after cycloplegic addition to the eye.
干预措施: Cycloplegics (Drug)
结局指标
主要结局
cylinder of the eye
时间窗: Baseline
This indicates the amount of lens power for astigmatism and represents the difference in the greatest and weakest powers of the eye, usually separated by 90 degrees. If nothing appears in this column, either you have no astigmatism, or your astigmatism is so slight that it is not necessary to correct it with your eyeglass lenses. The number in the cylinder column may be preceded with a minus sign (for the correction of nearsighted astigmatism) or a plus sign (for farsighted astigmatism). Cylinder power always follows sphere power in an eyeglass prescription. It is measured by Autorefractor.
Sphere of the eye
时间窗: Immediate after 30 minutes of cycloplegic addition
It means that the correction for nearsightedness or farsightedness is spherical, equal in all meridians of the eye. This indicates the amount of lens power, measured in diopters (D), prescribed to correct nearsightedness or farsightedness. If the number appearing under this heading has a minus sign (-), you are nearsighted; if the number has a plus sign (+) or is not preceded by a plus sign or a minus sign, you are farsighted. It is measured by Auto-refractor
cylinder
时间窗: Immediate after 30 minutes after cycloplegia
This indicates the amount of lens power for astigmatism and represents the difference in the greatest and weakest powers of the eye, usually separated by 90 degrees. If nothing appears in this column, either you have no astigmatism, or your astigmatism is so slight that it is not necessary to correct it with your eyeglass lenses. The number in the cylinder column may be preceded with a minus sign (for the correction of nearsighted astigmatism) or a plus sign (for farsighted astigmatism). Cylinder power always follows sphere power in an eyeglass prescription. It is measured by Autorefractor
次要结局
未报告次要终点
研究者
Ehab tharwat
Principal Investigator
Al-Azhar University