1. Department of Ophthalmology, The Seconnd affiliated hospital & Yuying Children’s hospital of Wenzhou Medical University, Wenzhou, China
2. Department of Ophthalmology, Xi’an No.3 Hospital, Xi’an, Shaanxi Province, China
3. Department of Ophthalmology, Shaanxi Ophthalmic Medical Center, Xi’an No.4 Hospital, Guangren Hospital Affiliated to School of Medicine of Xi’an Jiaotong University, Xi’an, China
4. Shaanxi Medical Device Testing, Xi’an, China
5. Environmental Monitoring Station of Xi’an, Xi’an, China
6. Department of Ophthalmology, The First Affiliated hospital of University of south China, Hengyang, China