1. The Second Hospital of Hebei Medical University, Shijiazhuang, China
2. Baoding NO.1 Central Hospital, Baoding, China
3. Division of Ocular Injuries, Department of Ophthalmology, The Third Hospital of Hebei Medical University, Shijiazhuang, China;
4. Hebei OPO Eye Bank, The Third Affiliated Hospital of Hebei Medical University, Shijiazhuang, China