The Department of Ophthalmology and Visual Sciences has been an active member of the international ophthalmic community and is fully committed to facilitating the advancement of ophthalmic education, and the exchange of knowledge, skills and the latest technological developments worldwide. We have organized and hosted 8 International Symposia of Ophthalmology (ISO) since 1995. We have also hosted major international meetings including the Congress of the Asia-Pacific Glaucoma Society (APGS), the International Society of Refractive Surgery (ISRS) Meeting and the Congress of the Asia-Pacific Vitreoretinal Society (APVRS) and the World Ophthalmology Congress (WOC). The Central Secretariat of the Asia-Pacific Academy of Ophthalmology (APAO) is based in our department. In the past we have participated in organizing the APAO Congresses in Bali, Beijing, Hyderabad and Guangzhou in 2009, 2010, 2013 and 2015 respectively. Prof Clement C Y Tham is the elected Chair of the Scientific Program Committee of the World Ophthalmology Congress 2016 (WOC 2016) in Mexico, and also the Congress President of the APAO Congress when it returns to Hong Kong in 2018. Prof Calvin Pang presided over as the Chairman of the 2015 International Retina Summit (IRS) held in Kunming. The department has ample representation in reputed organizations including Association for Research in Vision and Ophthalmology (ARVO), Asia ARVO, American Academy of Ophthalmology (AAO).