How common are unruptured intracranial aneurysms misdiagnosed as a serious ocular disease? – An illustrative case

Abstract

Unruptured intracranial aneurysm rarely present with visual dysfunction and could be misdiagnosed as serious ocular disease when there is associated vision abnormality. Anterior communicating artery (ACOM) aneurysm is a rare cause of non-glaucomatous optic neuropathy and could cause anterior visual pathway compression due to its proximity to optic nerve.1 We hereby present a case of co- existing ACOM aneurysm and meningioma with unilateral fully cupped disc mimicking glaucomatous optic neuropathy, with literature review of intracranial aneurysms that had been misdiagnosed as ocular pathology.