1 Department of Ophthalmology, Tokyo Dental College Ichikawa General Hospital, Chiba; Department of Ophthalmology, Faculty of Medical Sciences, University of Fukui, Fukui, Japan.
2 Department of Ophthalmology, Tokyo Dental College Ichikawa General Hospital, Chiba.
3 Department of Ophthalmology, Tokyo Dental College Ichikawa General Hospital, Chiba; Cornea Center Eye Bank, Tokyo Dental College Ichikawa General Hospital, Chiba, Japan.
4 Department of Ophthalmology, Faculty of Medical Sciences, University of Fukui, Fukui, Japan.