Postprandial transient visual loss.

L Nehmad, R J Madonna
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Abstract

Background: Temporary loss of vision after ingestion of a large meal is a phenomenon that has been reported in only a small number of cases in the ophthalmic literature.

Case report: A 60-year-old man reported episodes of blurred vision associated with visual aberrations in his left eye for 5 minutes after eating large meals. His medical history was significant for carotid artery disease, hypertension, "diet-controlled" diabetes, and hypercholesterolemia. The patient's symptoms abated when he ate in smaller quantities and was placed on a regimen of IOP-lowering eye drops.

Conclusions: Postprandial transient visual loss can occur when blood gets shunted to the mesenteric system after eating, leaving the eye hypoperfused. It most commonly takes place in individuals whose ocular perfusion is already compromised by carotid disease, in combination with other vascular conditions that result in the inability to compensate for decreased perfusion to the eye. The signs and symptoms of postprandial visual loss--as well as the mechanisms thought to contribute to it--are discussed.

餐后短暂性视力丧失。
背景:在眼科文献中,仅在少数病例中报道过大餐后暂时丧失视力的现象。病例报告:一名60岁男性报告在进食大量食物后出现左眼视力模糊伴视觉畸变5分钟。他的病史有颈动脉疾病、高血压、“饮食控制型”糖尿病和高胆固醇血症。当病人少吃东西并服用降低眼压的眼药水后,他的症状减轻了。结论:当血液在进食后被分流到肠系膜系统,导致眼睛充血不足时,可发生餐后短暂性视力丧失。它最常见于眼部灌注已经受到颈动脉疾病损害的个体,并结合其他血管状况导致无法补偿眼部灌注减少。讨论了餐后视力丧失的体征和症状,以及导致餐后视力丧失的机制。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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