Liu Guoguo, second-level professor (chief physician), director of the Institute of Ophthalmology of Xiamen University, director of the Department of Ophthalmology of Xiang' an Hospital affiliated to Xiamen University; Distinguished Professor of "Changjiang Scholars Award Program" of Ministry of Education, winner of National Outstanding Young Scholars Fund, Chief Scientist of National "863" Key Project; Standing Committee Member of Ophthalmology Branch of Chinese Medical Association, Standing Committee Member of Ophthalmologist Professional Committee of Chinese Medical Doctors Association, Chairman of Ophthalmology Professional Committee of Cross-Strait Medical and Health Exchange Association and Leader of Ocular Surface and Tear Diseases Group, Deputy Editor-in-Chief of Chinese Journal of Ophthalmology; Academician of Asia Pacific Academy of Ophthalmology, President of Asian Dry Eye Society, Member of Asian Keratology Society.