Abstract: INTROUCTION: Ophthalmologic manifestations are the major cause of morbidity in Behcet's Disease. If not treated, they usually progress toward sever loss of vision or blindness. Cytotoxic drugs are the main therapeutic agents. MATERIALS & METHOD: In an open, non randomized, control study, Pulse Cyclophosphamide (PCP), low dose pulse cyclophosphamide (LDP), weakly methotrexate (MTX), chlorambucil (CHL), oral cyclophosphamide (OCP), and cyclosporine A (CYA) were used in a standard protocol for 778 ...