生物识别参数的不确定性对眼内透镜功率公式的影响 预测使用蒙特卡洛模拟的折射
Achim Langenbucher1, Peter Hoffmann2, Alan Cayless3
1Department of Experimental Ophthalmology, Saarland University, Homburg, Germany.
Acta ophthalmologica
|June 23, 2023
概括
光学生物仪的测量不确定性显著影响了白内障手术后预测的折射结果. 这些不确定性在很大程度上导致了整体折射预测误差,特别是在不同的眼内透镜功率和眼睛长度的情况下.
科学领域:
- 眼科医生 眼科 眼科
- 生物医学光学 生物医学光学
- 折射手术是一种折射手术.
背景情况:
- 白内障手术的结果取决于准确的折射预测.
- 光学生物仪对于获取生物识别数据至关重要.
- 测量不确定性可能会影响折射结果的预测.
研究的目的:
- 为了调查白内障手术后的折射结果不确定性 (REFU).
- 量化光学生物仪测量不确定性的影响.
- 分析不确定性,使用文献数据来分析主体内部标准偏差 (Sw).
主要方法:
- 蒙特卡洛模拟使用16667次手术前IOLMaster 700测量.
- 使用错误传播,为Haigis和Castrop公式衍生了REFU.
- 计算的REFU具有和没有眼内透镜 (IOL) 功率标签公差 (WLT/WoLT).
主要成果:
- 中位数的REFU为0.10/0.12 dpt (WoLT) 和0.13/0.15 dpt (WLT) 的情况.
- 随着IOL功率的增加,REFU增加了,并且更明显的是WLT.
- 角膜前面表面半径的不确定性是一个主要的贡献者,特别是在长眼中; IOL功率的不确定性在短眼中占主导地位.
结论:
- 生物识别测量不确定性在折射结果预测中贡献了总标准偏差的1/3至1/2.
- 随着IOL功率的增加,REFU系统地增加,并随着轴长度的减少.
- 考虑到IOL功率标签的公差,可以增加REFU.
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