1. Retina Foundation of the Southwest, Dallas, Texas, United States
2. Retina Foundation of the Southwest, Dallas, Texas, United States 2Department of Ophthalmology, University of Texas Southwestern Medical Center, Dallas, Texas, United States
3. Oregon Health & Science University, Casey Eye Institute, Portland, Oregon, United States
4. University of Michigan, Kellogg Eye Center, Ann Arbor, Michigan, United States