Department of Ophthalmology, Faculty of Medicine, University of Tsukuba, Ibaraki, Japan.

Address correspondence to Takahiro Hiraoka, M.D., Department of Ophthalmology, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennoudai, Tsukuba, Ibaraki, 305-8575 Japan; e-mail: [email protected]

The authors have no conflicts of interest to disclose.

This research is fully supported by a grant from Johnson & Johnson Vision, Jacksonville, FL. The funder has no role in research design, data collection and analysis, decision to publish, or preparation of the manuscript. The contract research organization (CRO) service is also paid by this grant. The CRO for this study is Medical Edge Co., Ltd, which is independent from the study sponsor and investigators and has no competing interests regarding this study. There is no funding received for this research from any of the following organizations: National Institutes of Health; Wellcome Trust; Howard Hughes Medical Institute; and others. T.H. and T.O. have received honoraria from Johnson & Johnson Vision, Jacksonville, FL. The remaining authors (G.K., R.H., K.M.) have no financial or proprietary interests to declare in any material or method mentioned.