摘要
Expert introduction Being more than 19 years head of the Eye Clinic,Charité-Campus Benjamin Franklin,Prof.Dr.Michael Foerster(Figure 1)is a leading expert in the field of eye tumors in the ocular fundus.These tumors are the result of an extremely malicious disease,which not only menace the ability to see,but also but a patient in mortal danger.Patients with eye tumors are being treated with proton beams since June 1998 by the Universitätsklinikum Benjamin Franklin of the Freie Universität Berlin(now:Charité,Universitätsmedizin Berlin,Campus Benjamin Franklin)together with the Hahn-Meitner-Institut(now:Helmholtz-Zentrum Berlin für Materialien und Energie)in Berlin.
