Abstract
PURPOSE: To report a case of anterior ischemic optic neuropathy after a trans-Atlantic airplane journey. DESIGN: An observational case report. METHODS: A 48-year-old healthy man presented with severe visual loss in his left eye within 12 hours after a 15-hour-long trans-Atlantic airplane flight. The patient underwent slit-lamp examination, funduscopy, fluorescein angiography, automated perimetry, and various blood examinations. RESULTS: Visual acuity was LE: 20/30, and a mild left eye relative afferent pupillary defect was noted. Funduscopic evaluation revealed an edematous optic disk in the left eye with a para-diskal retinal hemorrhage. Fluorescein angiography revealed a leaking optic disk, and perimetry showed an inferior hemi-field scotoma. Anterior ischemic optic neuropathy was diagnosed. CONCLUSION: Prolonged airplane travel may compromise vision either by a thromboembolic mechanism caused by prolonged immobilization or by a vasospasm mechanism induced by the low oxygen pressure during the flight.
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