The Power List 2016
Chairman of the Department of Ophthalmology and K.K. Tse and Ku Teh Ying Professor of Ophthalmology at Columbia University Medical Center, New York
Chang has developed and pioneered several revolutionary surgical approaches to treat complicated forms of retinal detachment. He was the first to use perfluoropropane gas in the management of retinal detachments caused by scar tissue proliferation on the retina (now the most frequently used gas in vitreoretinal surgery). He developed perfluorocarbon liquids, and their use in retinal surgery, and in collaboration with Avi Grinblat, he developed a panoramic viewing system that is now used by retina surgeons worldwide.