About the Authors

Yusaku Katada

Contributed equally to this work with: Yusaku Katada, Kazuno Negishi

Affiliation Department of Ophthalmology, Keio University School of Medicine, Shinanomachi, Shinjuku-ku, Japan

Kazuno Negishi

Contributed equally to this work with: Yusaku Katada, Kazuno Negishi

fwic7788@mb.infoweb.ne.jp

Affiliation Department of Ophthalmology, Keio University School of Medicine, Shinanomachi, Shinjuku-ku, Japan

Kazuhiro Watanabe

‡ These authors also contributed equally to this work.

Affiliation Department of Ophthalmology, Keio University School of Medicine, Shinanomachi, Shinjuku-ku, Japan

Yuta Shigeno

‡ These authors also contributed equally to this work.

Affiliation Department of Ophthalmology, Keio University School of Medicine, Shinanomachi, Shinjuku-ku, Japan

Megumi Saiki

‡ These authors also contributed equally to this work.

Affiliation Department of Ophthalmology, Keio University School of Medicine, Shinanomachi, Shinjuku-ku, Japan

Hidemasa Torii

‡ These authors also contributed equally to this work.

Affiliation Department of Ophthalmology, Keio University School of Medicine, Shinanomachi, Shinjuku-ku, Japan

Minako Kaido

‡ These authors also contributed equally to this work.

Affiliation Department of Ophthalmology, Keio University School of Medicine, Shinanomachi, Shinjuku-ku, Japan

Kazuo Tsubota

‡ These authors also contributed equally to this work.

Affiliation Department of Ophthalmology, Keio University School of Medicine, Shinanomachi, Shinjuku-ku, Japan

Competing Interests

The authors have read the journal's policy and the authors of this manuscript have the following competing interests: Kazuo Tsubota and Minako Kaido hold patent rights for the method and apparatus for measurement of functional visual acuity (US patent no:7470026). This does not alter the authors' adherence to PLOS ONE policies on sharing data and materials.

Author Contributions

Conceived and designed the experiments: YK KN KW HT YS MK KT. Performed the experiments: YK YS MS. Analyzed the data: YK KN. Contributed reagents/materials/analysis tools: YS MS MK. Wrote the paper: YK KN. Interpretation of data for the work: YK KN MK. Revising it critically for important intellectual content: KW HT YS MK KT. Final approval of the version to be published: YK KN KW HT YS MK KT. Agreement to be accountable for all aspects of the work in ensuring that questions related to the accuracy or integrity of any part of the work are appropriately investigated and resolved: YK KN KW HT YS MK KT.