1. Duke University Eye Center and the
2. Duke University Eye Center and the 2Department of Biomedical Engineering, Duke University, Durham, North Carolina;
3. National Eye Institute, National Institutes of Health, Bethesda, Maryland;
4. Devers Eye Institute, Portland, Oregon;
5. Cole Eye Institute, Cleveland Clinic, Cleveland, Ohio; and
6. The EMMES Corporation, Rockville, Maryland.