1. Department of Ophthalmology, the First Affiliated Hospital of Guangxi Medical University, Guangxi, China
2. Graduate School, Guangxi University of Chinese Medicine, Guangxi, China
3. Department of Surgery and Cancer, Imperial College London, Chelsea and Westminster Hospital, 369, Fulham Road, London SW10 9NH, United Kingdom
4. National Engineering laboratory of Southwest Endangered Medicinal Resources Development, Guangxi Botanical Garden of Medicinal Plants, Guangxi, China