Aim: To describe a case of ophthalmic artery occlusion associated with anisocoria and revealing a cavernous sinus thrombosis due to sinusitis.
Observation: A 48-year-old man with a history of diabetes presented acutely with loss of vision and proptosis in the left eye. Ophthalmologic examination concluded in a left ophthalmic artery occlusion with anisocoria and total ophthalmoplgia.