1. Ophthalmology Department, Provincial Clinical Medical College of Fujian Medical University, Fuzhou 350001, China
2. Ophthalmology Department, Fujian Provincial Hospital, Fuzhou 350001, China
3. Ophthalmology Department, Guangze County Hospital, Nanping 353000, China
4. Ophthalmology Department, Xiapu Funing County Hospital, Ningde 352000, China