The Power List 2016
Clinical professor, University of California, San Francisco and a past president of ASCRS.
He has chaired the AAO Annual Meeting program committee and their cataract guidelines (Preferred Practice Pattern) panel. Chang is a past chief medical editor for both EyeWorld and Cataract & Refractive Surgery Today, and has written best-selling textbooks on refractive IOLs and phaco chop/complex cases. As the ASCRS Foundation co-chair, he is involved in efforts to improve cataract surgery in the developing world, and has delivered the ASCRS Binkhorst and AAO Kelman Lectures, the APACRS Lim Lecture, and received the APAO Rizal International Medal.