Internal carotid artery aneurysm mimicking normal-tension glaucoma

Arquivos brasileiros de oftalmologia
Mário Pincelli NettoCarolina Pelegrini Barbosa Gracitelli

Abstract

Differentiating glaucomatous from nonglaucomatous optic disc cupping remains challenging. We present a case of a 48-year-old woman with an internal carotid aneurysm of approximately 3.5 mm × 6.5 mm that mimicked normal-tension glaucoma. The patient had a 2-year history of low vision acuity in her left eye and frontal oppressive headache. Owing to the carotid aneurysm, she developed an asymmetric vertical cup-to-disc ratio above 0.2, and marked inferotemporal neuronal rim loss and pallor of the residual rim were noted in the left disc. She also developed a visual field defect with an arcuate scotoma in the left eye. The patient was referred to a neurosurgeon and underwent endovascular aneurysm occlusion. This case highlights the diagnostic importance of recognizing that many neurological defects remain underdiagnosed.

Citations

Nov 3, 2020·Journal of Neuro-ophthalmology : the Official Journal of the North American Neuro-Ophthalmology Society·Jonathan A Micieli, Edward A Margolin

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