Douglas J. Rhee, MD Assistant Professor Harvard Medical School Associate Chief, Practice Development Massachusetts Eye & Ear Infirmary Boston, Massachusetts USA Katheryn A. Colby, MD, PhD Assistant Professor Harvard Medical School Cornea Service Massachusetts Eye & Ear Infirmary Boston, Massachusetts USA Christopher J. Rapuano, MD Professor Jefferson Medical College Director, Cornea Service Wills Eye Hospital Philadelphia, Pennsylvania USA Lucia Sobrin, MD, MPH Assistant Professor Harvard Medical School Massachusetts Eye & Ear Infirmary Boston, Massachusetts USA