1. Department of Neurosurgery, Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou, People's Republic of China
2. Department of Neurology, Third Affiliated Hospital of Sun Yat-sen University, Guangzhou 510060, People's Republic of China
3. Department of Eye Tumor and Orbital Disease, Zhongshan Ophthalmic Center (ZOC) of Sun Yat-Sen University, Guangzhou, People's Republic of China