Superior ophthalmic vein thrombosis following coil embolization of posterior communicating artery aneurysm: Report of two cases.

Isolated superior ophthalmic vein thrombosis (SOVT) is rare, but may be associated with sight-threatening complications. After intracranial interventions on cerebral vessels, clinical features of SOVT including choroidal effusion syndrome should be investigated, and the patients should receive prompt and proper care including ophthalmic medications and systemic anticoagulants to restrict the ocular and systemic complications.