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The diagnostic yield of the evaluation for isolated unexplained optic atrophy
Journal article   Peer reviewed

The diagnostic yield of the evaluation for isolated unexplained optic atrophy

Andrew G Lee, Felix Y Chau, Karl C Golnik, Randy H Kardon and Michael Wall
Ophthalmology (Rochester, Minn.), Vol.112(5), pp.757-759
05/2005
DOI: 10.1016/j.ophtha.2004.12.009
PMID: 15878053

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Abstract

To report the diagnostic yield for the evaluation of isolated and unexplained optic atrophy. Two tertiary care academic neuroophthalmology clinics. Retrospective case series. Patients with optic atrophy. Retrospective review of all charts with the diagnosis of optic atrophy. Included patients were adults with isolated, but unexplained, optic atrophy. Patients were excluded if they were children, had incomplete or inadequate documentation of the findings, had nonneurologically isolated optic atrophy (e.g., other localizing findings), or had a history (e.g., prior neuroimaging study showed a compressive lesion, prior ischemic optic neuropathy) or examination (e.g., central retinal artery occlusion) evidence for an etiology for the optic atrophy. Results of diagnostic evaluation. A total of 1110 charts with the diagnosis of optic atrophy were reviewed from the 2 participating institutions (368 from the University of Cincinnati and 742 from the University of Iowa). Of these 1110 charts, 91 (8%) with isolated unexplained optic atrophy were included, and 1019 charts (92%) were excluded. Of 91 included patients, 18 (20%) had a compressive lesion causing optic atrophy, and 73 (80%) cases had no etiology for the optic atrophy on neuroimaging. Of the 18 patients with abnormal imaging (e.g., meningioma, pituitary adenoma, craniopharyngioma) studies, 11 had bilateral and 7 had unilateral optic atrophy. Five of the 18 patients had progressive visual loss, 3 had hemianopic visual field loss, and 11 were younger than 50 years old. Patients with optic atrophy in our study typically had historical or examination findings that led to an etiologic diagnosis. Neuroimaging showed an etiology in 20% of patients. Other laboratory testing did not produce an etiologic diagnosis in the absence of a suggestive history or examination. On the basis of our results, we recommend neuroimaging for all patients with unexplained optic atrophy and consideration for directed laboratory studies only.
 Brain Neoplasms - diagnosis Humans Middle Aged Brain Neoplasms - complications Nerve Compression Syndromes - complications Magnetic Resonance Imaging Vision Disorders - diagnosis Optic Atrophy - etiology Nerve Compression Syndromes - diagnosis Retrospective Studies Optic Atrophy - diagnosis Diagnostic Techniques, Ophthalmological Vision Disorders - etiology

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