American Academy of Optometry Anual Meeting San Antonio 7.-10. November 2018 Markus Ritzmann SBAO Workshop OCT in Theorie und Praxis Oerlikon 29. Oktober 2017 Madeleine Krauss American Academy of Optometry Anual Meeting Chicago 11.-14. Oktober 2017 Markus Ritzmann SBAO Workshop OCT für Fortgeschrittene Oerlikon 18. September 2017 Markus Ritzmann Von Hoff Workshop: Trockenes Auge/ 3D Refraktion, 15. Mai 2017 Markus Ritzmann SBAO Workshop OCT in Theo