两维外围折射和高阶波面偏差由正视镜镜片脱中心引发的正视镜片脱中心
Minsong Xue1, Zhenghua Lin1,2,3, Haoran Wu2,4
1Aier School of Ophthalmology, Central South University, Changsha, China.
Translational vision science & technology
|October 12, 2023
概括
整形眼镜镜片的分散影响了外周折射和更高阶异常 (HOA). 这些光学变化,特别是时间近视的增加,可能会影响儿童近视控制的有效性.
科学领域:
- 眼科医生 眼科 眼科
- 眼镜测量是指眼睛的测量.
- 生物医学光学 生物医学光学
背景情况:
- 脊椎病理学是一种近视控制治疗,使用一夜穿戴的刚性气体透透镜.
- 了解透镜分散的光学效应对于优化治疗疗效至关重要.
- 高级偏差 (HOA) 可以影响视觉质量和折射结果.
研究的目的:
- 为了研究 ортокератология镜片分散和诱导的二维外围折射和HOA之间的关系.
- 分析透镜分散如何影响近视儿童的相对外周折射 (RPR) 和特定HOA.
主要方法:
- 利用一个开放视图的哈特曼-沙克波面传感器在定义的视野中测量外围折射和HOA.
- 通过分析触角角膜功率图的变化来量化透镜去中心化.
- 收集了134名近视儿童的基线和镜头安装后一个月的数据.
主要成果:
- 观察到RPR的水平不对称变化,球形偏差 (SA) 和水平昏迷.
- 在HOA (RMSHOA) 的平方根中位数中发现了辐射对称的变化,在垂直昏迷中发现了垂直不对称的变化.
- 相对外围近视增加,特别是暂时增加,并且与透镜分散 (r ≈ 0.4,P < 0.05) 有关.
- 所有测量的HOA都在镜头磨损后增加.
结论:
- 镜头脱中心与外围折射和HOA的显著变化有关.
- 这些由分散引起的光学效应可能会在治疗近视症的正确性方面发挥作用.
- 研究结果表明,基于近视治疗的光学原理,可以定制隐形眼镜设计.
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