David F Chang, MD, is a Clinical Professor at the University of California, San Francisco (UCSF) (where he completed his ophthalmology residency). Having chaired the American Society of Cataract and Refractive Surgery (ASCRS) Cataract Clinical Committee, Dr Chang joined the ASCRS Executive Committee in 2009 and served as the President between 2012 and 2013. He is immediate past chair of the American Academy of Ophthalmology (AAO) Cataract Preferred Practice Pattern Panel and in 2009 completed his 5-year term as chair of the AAO Annual Meeting program committee. Dr Chang is the chief medical editor of EyeWorld, associate international editor for the Asia-Pacific Journal of Ophthalmology, and served for 5 years as co-chief medical editor for Cataract and Refractive Surgery Today. He is also chair of the ASCRS Foundation International Committee and serves on the medical advisory board of Himalayan Cataract Project and Project Vision. He is the 2014 recipient of the Jose Rizal International Medal, the highest international award from the Asia-Pacific Academy of Ophthalmology. In 2006, Dr Chang became only the third ophthalmologist to ever receive the Charlotte Baer Award honoring the outstanding clinical faculty member at the UCSF Medical School. He has received the highest honor for cataract surgery from the following organizations:ASCRS (Binkhorst Medal), AAO (Kelman Lecture), Asia Pacific Association of Cataract & Refractive Surgery (Lim Medal), United Kingdom and Ireland Society of Cataract & Refractive Surgery (Rayner Medal), Canadian Society of Cataract and Refractive Surgery (Award of Excellence/Stein Lecture), Indian Intraocular Implant & Refractive Society (Gold Medal), Italian Ophthalmological Society (Strampelli Medal), and Royal Australia and New Zealand College of Ophthalmologists (Gregg Medal). Dr Chang is a summa cum laude graduate of Harvard College and Harvard Medical School.