About the Authors

Xin Meng

Affiliation Graduate Center for Vision Research, State University of New York College of Optometry, New York, New York, United States of America

Qasim Zaidi

qz@sunyopt.edu

Affiliation Graduate Center for Vision Research, State University of New York College of Optometry, New York, New York, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: XM QZ. Performed the experiments: XM. Analyzed the data: XM QZ. Wrote the paper: XM QZ.