1. Department of Ophthalmology, Osaka University Graduate School of Medicine, Suita, Japan;
2. Department of Ophthalmology, Tokyo Dental College Ichikawa General Hospital, Ichikawa, Japan;
3. Department of Biomedical Engineering, Faculty of Life and Medical Sciences, Doshisha University, Kyotanabe, Japan; and
4. Department of Ophthalmology, University of Pittsburgh School of Medicine, Pittsburgh, PA.