Pulsating exophthalmus develops most frequently in the course of penetrating or bitemporal head trauma. Idiopathic form is even more rare. Orbit venous system over-loading with pathological arterial blood infiltration is the cause of pulsating exophthalmus. A patient with congenital carotid-cavernous fistula (right eyeball enlargement and noise), suffering from head trauma after road accident has been presented. Carotid-cavernous fistula was diagnosed and than treated casually by endovascular closure of the infiltration between internal carotid artery and cavernous sinus. After 5-month treatment regression of the noise and exophthalmus was observed.