1. From the Department of Biomedical Engineering, University of Iowa College of Engineering, Iowa City, Iowa; 2Carver Family Center for Macular Degeneration, Department of Ophthalmology and Visual Sciences, University of Iowa Carver College of Medicine, Iowa
2. Carver Family Center for Macular Degeneration, Department of Ophthalmology and Visual Sciences, University of Iowa Carver College of Medicine, Iowa City, Iowa; and
3. Carver Family Center for Macular Degeneration, Department of Ophthalmology and Visual Sciences, University of Iowa Carver College of Medicine, Iowa City, Iowa; and the 3Howard Hughes Medical Institute, Iowa City, Iowa.