1. From the Department of Ophthalmology, Casey Eye Institute, Oregon Health and Science University, Portland, Oregon; the
2. Department of Physiology and Biophysics, Weill Cornell Medical College, Burke Medical Research Institute, White Plains, New York; the
3. Department of Ophthalmology and Visual Sciences, University of British Columbia, Vancouver, British Columbia, Canada; the
4. Beckman Vision Center, University of California San Francisco, San Francisco, California; and the
5. Department of Neuroscience, Canadian Centre for Behavioural Neuroscience, University of Lethbridge, Lethbridge AB, Canada.