He is active in international scientific societies including Euretina (Co-opted Board member 2016-2018), Retina Society, AAO (International Fellow; member of the Global ONE Advisory Board, Museum of Vision’s Program Committee, and member of the Task Force On Myopia), EVER (Board member and chair of cataract section, 2019-2023), ESCRS (curator of ESCRS Archive), and ISRS (member of the ISRS International Council), ISBCS, International Council of Ophthalmology (program coordinator for WCO in 2011-2018), and Cogan Society. He became lifelong member (chair LIV) of the European Academy of Ophthalmology (http://www.eao.eu) and its Treasurer. He is a member of Ophthalmic Education Consortium (OEC) advisory committee of Ophthalmology Foundation. He has been active contributor to major ophthalmic conferences worldwide, including AAO (Achievement Award 2017, International Scholar Award 2018), APAO (International Coordinator 2017-2020, Achievement Award 2018), WCO (Programme Coordinator 2010-2018), CCOS, Euretina, ESCRS, EVER, ISOPT, etc.