Prof. Nathan Congdon is the Ulverscroft Chair of Global Eye Health at Queen’s University Belfast, Professor of Preventive Ophthalmology at Zhongshan Ophthalmic Center (ZOC) in China and Director of Research for Orbis International. His research focuses on improving the quality of eye care service in underserved settings in LMICs, and on high-quality, policy-relevant randomized trials demonstrating specific ways in which vision care accelerates progress towards the SDGs.