Axial Eye Length Measurement System Based on Low Coherence Interferometry

Cheng Wang; Qi Zhou; Yijun Chen; Minghui Chen; Huazhong Xiang; Gang Zheng; Jie Zhao; Dawei Zhang

doi:10.3788/CJL202249.0507106

Chinese Journal of Lasers, Volume. 49, Issue 5, 0507106(2022)

Axial Eye Length Measurement System Based on Low Coherence Interferometry

Cheng Wang^1、*, Qi Zhou¹, Yijun Chen¹, Minghui Chen¹, Huazhong Xiang¹, Gang Zheng¹, Jie Zhao², and Dawei Zhang³

¹Institute of Biomedical Optics and Optometry, Key Lab of Medical Optical Technology and Instruments, Ministry of Education, University of Shanghai for Science and Technology, Shanghai 200093, China

²Ophthalmology, Shanghai Yangpu District Shidong Hospital, Shanghai 200438, China

³Key Laboratory of Modern Optical Systems, Engineering Research Center of Optical Instrument and System, Ministry of Education, University of Shanghai for Science and Technology, Shanghai 200093, China

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Figures & Tables(6)

Fig. 1. Schematic of bioptical interferometric eye-axis measurement system

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Fig. 2. Principle block diagram of optical signal processing for axial eye length measurement

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Fig. 3. Axial length of a human’s eye

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Fig. 4. Physical photo of ocular axis measuring system

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Fig. 5. Axial eye length measured by IOLMaster500 system and our system

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Table 1. Analysis of measured axial human eye length
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Table 1. Analysis of measured axial human eye length
No. Mean±error /mm Significance ICC
1 24.41±0.04 0.930 0.833
2 25.29±0.06 0.789 0.641
3 23.71±0.05 0.835 0.626
4 26.37±0.06 0.832 0.701
5 23.45±0.02 0.932 0.954

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Cheng Wang, Qi Zhou, Yijun Chen, Minghui Chen, Huazhong Xiang, Gang Zheng, Jie Zhao, Dawei Zhang. Axial Eye Length Measurement System Based on Low Coherence Interferometry[J]. Chinese Journal of Lasers, 2022, 49(5): 0507106

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Paper Information

Received: Jun. 28, 2021

Accepted: Sep. 29, 2021

Published Online: Mar. 9, 2022

The Author Email: Wang Cheng (shhwangcheng@163.com)

DOI:10.3788/CJL202249.0507106

Topics

laser devices and laser physics

Lasers and Laser Optics

Laser physics

laser manufacturing

Instrumentation, Measurement and Metrology

Table 1. Analysis of measured axial human eye length

Table 1. Analysis of measured axial human eye length