1. Department of Ophthalmology, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
2. Department of Ophthalmology, Xi'an Fourth Hospital, Affiliated Xi'an Fourth Hospital, Northwestern Polytechnical University, Affiliated Guangren Hospital of Xi'an Jiaotong University, Xi'an, China
3. Department of Neurosurgery, Lanzhou University Second Hospital, Lanzhou, China