He was the visiting scholar of Nuffield Laboratory of Ophthalmology, University of Oxford, UK; postdoctoral fellow and assistant professor of Duke University’s Ophthalmic Center, USA; deputy chief physician and associate professor of ophthalmology department of Peking University Third Hospital; chief physician,professor, and director of fundus diease department of the Eye Center of Beijing Tongren Hospital, CMU. He has published more than 120 academic papers in academic journals at home and abroad, and his masterpieces include"Selected Analysis of Difficult and Complicated Cases of Fundus Disease”,"Patterns of Fundus Disease", and“Diabetes and Oculopathy: Treatments of the Past, Present and Future".