Hemi-central retinal artery occlusion following methanol toxicity.

Mohammad Zarei, Sima Sheikhghomi, Masoud Aghsaei Fard
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Abstract

Objective: To describe a patient with hemi-retinal artery occlusion following methanol toxicity.

Methods: Observational case report.

Results: We report a case presented with an acute altitudinal visual field loss in the right eye following consumption of illicit alcoholic drink. In fundus photography, a well demarcated superior hemi-retinal whitening with foveal sparing was noted. Careful inspection of the optic nerve head in the right eye revealed that there was no main trunk of the central retinal artery anterior to the lamina cribrosa. Two separately emerging superior and inferior arterial trunks were noted. In fundus fluorescein angiography, earlier dye filling in the territory of the superior arterial trunk compared to the inferior arterial trunk was evident.

Conclusion: Hemi-central retinal occlusion may happen as an ocular consequence of methanol toxicity in patients with a proximal bifurcation of the central retinal artery.

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甲醇中毒后半中央视网膜动脉闭塞。
目的:报告一例甲醇中毒致半视网膜动脉闭塞的病例。方法:观察性病例报告。结果:我们报告一个病例提出了一个急性高度视野丧失在右眼后,非法饮酒。眼底摄影显示,上半视网膜明显白化,中央凹保留。仔细检查右眼视神经头,发现视网膜中央动脉在筛板前没有主干。注意到两个单独出现的上、下动脉干。眼底荧光素血管造影显示,上动脉主干的染色明显早于下动脉主干。结论:在视网膜中央动脉近端分叉的患者中,甲醇中毒可能导致半中枢性视网膜闭塞。
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