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Optic disc edema in Cogan syndrome

Optical coherence tomography shows optic disc edema in a patient with Cogan syndrome. (Source: Wang Y, Tang S, Shao C, Liu Y. Cogan's syndrome is more than just keratitis: a case-based literature review. BMC Ophthalmol 2023;23[1]:212. Creative Commons Attribution 4.0 International [CC BY 4.0] license, creativecommons.org/licenses/by/4.0.)

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