Dr. Ahn has completed his PhD at the age of 35 years from Pusan National University and studied oculoplastic and reconstructive surgery over 18 years. He had clinical research in University of Washington, Seattle, USA for one year, in Japan and China. He is the chief professor in Pusan National University of Ophthalmology, Division of Oculoplastic and Orbital Surgery. He has published more than 15 papers in SCIE journals and has been serving as an editorial board member of global ophthalmology journal.