Drawing in 15 840 patients treated at the First Eye Clinic of the University of Vienna between 1966 and 1980, 273 cases of hemorrhagic secondary glaucoma were selected for a special study. After a historical review of the semantic change which the expression "hemorrhagic glaucoma" has undergone etiological factors are investigated. Hemorrhagic glaucoma occurred after occlusion of the central retinal vein in 52.7% of the cases, as a result of diabetes mellitus in 37.3%, after iridocyclitis chronica recidivans in 3.7%, following retinal detachment in 1.8%, as a result of intraocular tumors in 1.8%, after occlusion of the central artery in 1.1% and after an apoplectic shock in 0.4%.