1. From the Departments of Small Animal Clinical Studies,
2. Department of Vision Sciences, School of Optometry, The University of Alabama at Birmingham, Birmingham, Alabama; the
3. Department of Neurosciences, The Ohio State University, Columbus, Ohio; and the
4. Pathobiology and Diagnostic Investigations,
5. Physiology, and
6. Animal Science, Michigan State University, East Lansing, Michigan; the
7. Kellogg Eye Center, University of Michigan, Ann Arbor, Michigan.