1. From the Departments of Ophthalmology,
2. From the Departments of Ophthalmology, 2Biomedical Engineering and Physics, and
3. the Department of Electrical and Computer Engineering, University of Iowa, Iowa City, Iowa;
4. the Department of Electrical and Computer Engineering, University of Iowa, Iowa City, Iowa; the 4Department of Ophthalmology and Visual Sciences, University of Iowa Hospital and Clinics, Iowa City, Iowa; and
5. Internal Medicine, Academic Medical Center, Amsterdam, the Netherlands;
6. the Department of Electrical and Computer Engineering, University of Iowa, Iowa City, Iowa; the 4Department of Ophthalmology and Visual Sciences, University of Iowa Hospital and Clinics, Iowa City, Iowa; and the 6VA Medical Center, Iowa City, Iowa.