1983: M.D., Hiroshima University 1990-1992: Post doctoral associate, Yale University, Yale Eye Center 1995: Assistant Professor, Department of Ophthalmology, Hiroshima University 1997-2003: Vice Director, Department of Ophthalmology, Osaka National Hospital 2003-2006: Director of Department of Ophthalmology, Otemae Hospital 2006: Professor and Chairman, Department of Ophthalmology and Visual Science, Hiroshima University