1. Department of Neurology, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong 510630, China
2. State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou, Guangdong 510600, China
3. Department of Dermatology, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong 510630, China