1 The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an, 710049, China.
2 Cixi Institute of Biomedical Engineering, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, 315300, China.
3 Department of Ophthalmology, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710049, China.
4 Jiangsu Key Laboratory for Design and Manufacture of Micro-Nano Biomedical Instruments, Southeast University, Southeast University, Nanjing, 211189, China.
5 The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an, 710049, China; Zhejiang Research Institute of Xi'an Jiaotong University, Hangzhou, 311215, China. Electronic address: xiayuxu@xjtu.edu.cn.