1. College of Biological Information, Chongqing University of Posts and Telecommunications, Chongqing, China
2. Department of Ophthalmology, Sichuan Academy of Medical Sciences and Sichuan Provincial People’s Hospital, Chengdu, China
3. College of Biomedical Engineering, Army Medical University (Third Military Medical University), Chongqing, China
4. Laboratory of Bioelectromagnetism and Electromagnetic Detection Technology, Chinese Academy of Sciences, Beijing, China