| 1979-1989 | Studium der Rechtswissenschaften (Dr. iur.) |
| 1989-1991 | Angestellter des Landes Steiermark |
| seit 1991 | Beamter im höheren Dienst des Landes Steiermark |
| 1995 | Regierungsrat |
| 1996-1997 | Abgeordneter zum Nationalrat, SPÖ |
| 2003-2008 | Stadtrat für Finanzen, Graz |
| 2008-2010 | Stadtrat für Kultur und Gesundheit, Graz |
| Vorsitzender der SPÖ Graz |
| seit 2013 | Geschäftsführer, Wiener Zeitung GmbH |
| 1979-1986 | Medical School, Ludwig-Maximilians-University, Munich |
| 1986 | Doctoral thesis, University Eye Hospital, Munich |
| Internal rotation in Ophthalmic Pathology Howe Laboratory, Harvard Medical School, Mass. Eye and Ear Infirmary, Boston, MA |
| 1986-1987 | Research Fellow, Institute of Immunology, Ludwig-Maximilians-University, Munich |
| 1987-1990 | Resident in Ophthalmology, University Eye Hospital, Munich |
| 1990-1992 | Research Fellow in Photomedicine, Wellman Laboratories, Mass. General Hospital, Harvard Medical School, Boston, MA |
| 1991-1992 | Research Fellow in Ophthalmology, Retina-Department, Massachusetts Ear Infirmary, Harvard Medical School, Boston, MA |
| 1992-1993 | Clinical Fellow in Medical Retina, University Eye Hospital, Medical University of Lübeck |
| 1992-2004 | Research Associate, Medical Laser Center, University of Lübeck, Germany |
| 1993-1995 | Instructor in Ophthalmology, University Eye Hospital Lübeck |
| 1996-1999 | Assistant Professor in Ophthalmology, University Eye Hospital Lübeck |
| 2000-2004 | Professor in Ophthalmology |
| since 2004 | Appointment at the University of Vienna, Professor and Chair of Ophthalmology |
| 2008 | Visiting Professorship: Mc Gill University / Montreal / Canada |
| since 2009 | Lecturer, ESASO - European School for Advanced Studies in Ophthalmology, Lugano |
| Lecturer, PhD-Program at CeMM, Center for Molecular Medicine, Academy of Sciences, Vienna |
| since 2010 | Elected member of the Senate, MUW - Medical University of Vienna |
