not have been possible without the support of our colleagues at the Sichuan People's Provincial Hospital and the Department of Ophthalmology of West China Hospital, Sichuan University. Fan Ying Chuan, MD, ViceChairman, SichuanOphthalmologySociety, DirectorofOphthalmology Department, SichuanAcademyofMedicalScience&SichuanProvincialPeople, 's Hospitaland Chen Xiao Ming, MD, Chairman, SichuanOphthalmologySociety, Director of West China Eye Center, West China Hospital, Sichuan University, gave tirelessly to our effort from the beginning. We are especially grateful to the ix x Preface administration of the Sichuan People's Provincial Hospital, which provided the ?nancialguaranteesnecessarytosecurethemeetingvenue. Theassistanceof Chen Hui (Robert), MD, of the SPPH throughout the planning and the meeting itself were of enormous help to us.