1 University of Michigan Medical School, Department of Ophthalmology and Visual Sciences, Ann Arbor, Michigan; Center for Eye Policy and Innovation, University of Michigan, Ann Arbor, Michigan; University of Michigan School of Public Health, Department of Health Management and Policy, Ann Arbor, Michigan. Electronic address: jdstein@med.umich.edu.
2 University of Michigan Medical School, Department of Ophthalmology and Visual Sciences, Ann Arbor, Michigan.
3 Michigan Diabetes Research Center, University of Michigan, Ann Arbor, Michigan; University of Michigan Medical School, Department of Internal Medicine, Division of Metabolism, Endocrinology, and Diabetes, Ann Arbor, Michigan; University of Michigan School of Public Health, Department of Epidemiology, Ann Arbor, Michigan.
4 University of Michigan Medical School, Department of Ophthalmology and Visual Sciences, Ann Arbor, Michigan; Center for Eye Policy and Innovation, University of Michigan, Ann Arbor, Michigan.