Bilateral Ocular Ischaemic Syndrome—Rare Complication of Rhinocerebral Mucormycosis in an Omani Patient Case report and literature review

Ocular ischaemic syndrome (ois) is a relatively uncommon condition. simultaneous bilateral involvement is even less common and has been reported in only 22% of all cases of ois. it has variable clinical presentations, of which visual loss and ocular pain are the most common. it is believed to occur when there is a 90% or greater carotid artery obstruction. this syndrome is often associated with a number of systemic diseases including diabetes mellitus, hypertension, coronary artery disease, and cerebrovascular disease. only occasionally has it been described as a complication of rhinocerebral mucormycosis. we report an unusual case of bilateral ois secondary to bilateral internal carotid artery thrombosis as a complication of invasive rhinocerebral mucormycosis. in addition, a review of clinical presentation, diagnostic work-up and treatment options for ois is provided.