Gavin Herbert Eye Institute, University of California, Irvine School of Medicine, Irvine, California. Illinois Eye and Ear Infirmary, University of Illinois College of Medicine at Chicago, Chicago, Illinois. Massachusetts Eye and Ear Infirmary, Harvard Medical School, Boston, Massachusetts. Vanderbilt Eye Institute, Vanderbilt University Medical Center, Nashville, Tennessee. Ophthalmic Surgeons and Consultants of Ohio, Columbus, Ohio. Ophthalmic Plastic Surgery, Lions Eye Institute, Department of Ophthalmology, Albany Medical Center, Albany (Slingerlands), New York. Department of Ophthalmology, McGovern Medical School at University of Texas Health Science Center, Houston, Texas. Cullen Eye Institute, Baylor College of Medicine, Houston, Texas.