Founder and Co-Director of the World Society of Pediatric Ophthalmology and Strabismus (WSPOS)
President of World Council of Optometry (WCO), Professor Emeritus at Illinois College of Optometry (ICO)
Associate Consultant Optometrist, School of Optometry, the HK Polytechnic University, Immediate Past President of the HKSPO
Clinician-scientist, Visiting Research Fellow at Queensland University of Technology, and Co-Founder of Myopia Profile
Consultant Vitreoretinal Surgeon, Mount Elizabeth Medical Centre and Farrer Park Hospital, Singapore
Consultant Ophthalmologist, Clinical Director, Myopia Service, Singapore National Eye Centre and Myopia Centre of Excellence Singapore
A/Prof at UC Berkeley School of Optometry, Founder of the Myopia Control Clinic of UC Berkeley Eye Center, Chief Research and Education Officer at Treehouse Eyes
Convener of Myopia and Visual Optics Section of the Taiwan Professors Association, Professor and Director of Ophthalmology Department at China Medical University, Taiwan
Internal Vice President of The Hong Kong Association of Private Practice Optometrists (HKAPPO)
President of The Hong Kong Association of Private Practice Optometrists (HKAPPO)
President of The Hong Kong Society of Professional Optometrists (HKSPO)
Director of Global Professional Affairs for myopia management at CooperVision
General Manager, CooperVision Hong Kong and Taiwan, Vice President, APAC Strategy
