1994 M.D., University of Tsukuba 1994- Residency in Ophthalmology, University of Tsukuba 1996- Clinical fellow in Ophthalmology, University of Tsukuba 2001 PhD., University of Tsukuba 2001- Assistant Professor, Department of Ophthalmology, University of Tsukuba 2020-present Clinical Professor, Department of Ophthalmology, University of Tsukuba