About the Authors

Michael J. Schachter

Affiliation Department of Neuroscience, University of Pennsylvania, Philadelphia, Pennsylvania, United States of America

Nicholas Oesch

Affiliation Casey Eye Institute, Department of Ophthalmology, Oregon Health & Science University, Portland, Oregon, United States of America

Robert G. Smith

rob@retina.anatomy.upenn.edu

Affiliation Department of Neuroscience, University of Pennsylvania, Philadelphia, Pennsylvania, United States of America

W. Rowland Taylor

Affiliation Casey Eye Institute, Department of Ophthalmology, Oregon Health & Science University, Portland, Oregon, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: MJS RGS WRT. Performed the experiments: MJS NO. Analyzed the data: MJS. Wrote the paper: RGS WRT.