Terson syndrome - A case report suggesting the mechanism of vitreous hemorrhage

Objective: To present a patient with Terson syndrome and to propose a mechanism for vitreous hemorrhage. Design: Observational case report. Participant. A 50-year-old woman with subarachnoid hemorrhage and unilateral vitreous hemorrhage. Methods: Detailed examination with fluorescein angiography and funduscopy. Main Outcome Measures: Site of dye leakage on fluorescein angiography in the eye with vitreous hemorrhage. Results: Fluorescein angiography showed the leakage site at the margin of the disc in the eye with vitreous hemorrhage after the vitreous hemorrhage had been removed. Conclusions: The damage to peripapillary tissues demonstrated by fluorescein leakage suggests that intracranial hypertension affects peripapillary structures through the intervaginal space of the optic nerve sheath.