• Erin P O'Donnell and Ann E Kane.
• From the Department of Pediatric Emergency Medicine, Johns Hopkins Children's Center, Baltimore, MD.
• Pediatr Emerg Care. 2022 Jan 1; 38 (1): e59e60e59-e60.

AbstractIn the absence of trauma, sudden unilateral painless visual loss is an uncommon condition in the pediatric population requiring emergent medical evaluation. In the acute care setting, clinicians face the challenge of accurately assessing the patient and determining the initial diagnostic workup. A careful history alone helps guide diagnosis with sudden visual loss that is unilateral and persistent. Several neuro-ophthalmological conditions that present with these characteristics include retinal artery or vein occlusion, diseases affecting the cavernous sinus or orbital apex region, and optic neuropathy. Simple eye examination techniques have crucial diagnostic value in helping localize the disease process, determining the level of urgency, and need for timely intervention. Here we present an adolescent patient with nontraumatic, acute unilateral visual loss who had concerning ophthalmological examination findings and was subsequently diagnosed with optic neuropathy secondary to allergic fungal sinusitis.Copyright © 2021 Wolters Kluwer Health, Inc. All rights reserved.

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