1. From the Departments of Ophthalmology,
2. Department of Electrical and Computer Engineering, The University of Iowa, Iowa City, Iowa; the
3. Department of Electrical and Computer Engineering, The University of Iowa, Iowa City, Iowa; the3Department of Ophthalmology and Visual Sciences, The University of Iowa Hospital and Clinics, Iowa City, Iowa; and
4. Internal Medicine, and
5. From the Departments of Ophthalmology,5Biomedical Engineering and Physics, Academic Medical Center, Amsterdam, the Netherlands; the
6. Department of Electrical and Computer Engineering, The University of Iowa, Iowa City, Iowa; the3Department of Ophthalmology and Visual Sciences, The University of Iowa Hospital and Clinics, Iowa City, Iowa; and6Veterans Administration Medical Center, Iowa