Professor, Chief Physician, Doctoral Supervisor Jan 1976 - Sep 1980 Department of Ophthalmology, Second Affiliated Hospital of China Medical University, Resident Physician Sep 1983 - Apr 1986 Department of Ophthalmology, Chinese PLA General Hospital, Resident Physician May 1986 - Mar 1991 Department of Ophthalmology, Chinese PLA General Hospital, Attending Physician Apr 1991 - Aug 2001 Department of Ophthalmology, Chinese PLA General Hospital, Chief Physician 1998 - Aug 2001 Department of Ophthalmology, Chinese PLA General Hospital, Director Aug 2001 - 2015 Peking University Eye Center, Chief Physician, Executive Deputy Director Mar 2010 - 2015 Peking University Eye Center, Director Jan 2010 - Dec 2012 Department of Ophthalmology, Peking University Health Science Center, Director Apr 1991 - Present Postgraduate Medical School, Professor Apr 1991 - Feb 1999 Master's Degree Supervisor Mar 1998 - Present Doctoral Degree Supervisor Currently Director of the Department of Ophthalmology, Peking University Third Hospital; recipient of the Special Government Allowance of the State Council; Central Health Expert and Beijing Municipal Health Expert. May 2020 Appointed Consulting Expert of the Department of Ophthalmology, Peking University International Hospital Leader of the Ocular Trauma, Oculoplastic and Orbital Disease Group of the Chinese Ophthalmological Society; Leader of the Ocular Trauma Group of the Chinese Ophthalmological Society; currently Honorary Leader of the Ocular Trauma Group of the Chinese Ophthalmological Society; Council Member of the Ocular Microcirculation Professional Committee of the Chinese Society of Microcirculation; Chinese Representative of the International Society of Ocular Trauma; Council Member of the Asia-Pacific Vitreoretinal Society. Editorial Board Member of *Chinese Journal of Ophthalmology*, *Chinese Journal of Practical Ophthalmology*, *Chinese Journal of Ocular Fundus Diseases*, *Chinese Journal of Ophthalmology* (English Edition), *International Review of Ophthalmology*, *British Journal of Ophthalmology* (Chinese Edition), *Journal of Ophthalmology*, and *Medical Journal of the Chinese People's Armed Police Force*. Central Health Expert and Beijing Municipal Health Expert.