摘要
眼轴长度测量的精确度对近视防控及白内障患者术后视力恢复治疗等具有重要意义。本文介绍一种非接触光学测量技术,利用低相干光干涉原理研究相比传统测量及其他光学测量的新的系统,通过两路回光产生的干涉,达到无接触、精度更高的测量,达到20μm的误差,并进行模拟眼重复性测试,与现有IOL Master进行多组数据对比,验证其良好的准确性与精确度。
The accuracy of axial length measurement is of great significance for the prevention and control of myopia and the restoration of visual acuity after cataract surgery. This paper introduces an optical measurement technology, use a low coherent light interference principle research compared with the traditional measurement and other optical measurement of the new system,through the two way back to light interference, achieve non-contact, higher measuring precision, the error of up to 20 um, and simulate the repeatability test, with the existing IOL Master multiple sets of data comparison, verify its good accuracy and precision.
作者
李唐
吴南寿
李秉尧
曾亚光
Li Tang;Wu Nanshou;Li Bingyao;Zeng Yaguang(School of Electromechanical Engineering and Automation,Foshan University of Science and Technology,Guangdong,Foshan,528225,China;School of Physics and Optoelectronics,Foshan University,Guangdong,Foshan,528225,China)
出处
《仪器仪表用户》
2023年第1期1-4,59,共5页
Instrumentation
关键词
眼轴长度
低相干光干涉
精确度
eye axis length
low coherent light interference
precision
