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视觉诱发电位在同向性和双颞侧视野缺损评估中的应用

Visually evoked cortical potentials in the evaluation of homonymous and bitemporal visual field defects.

作者信息

Wildberger H G, Van Lith G H, Wijngaarde R, Mak G T

出版信息

Br J Ophthalmol. 1976 Apr;60(4):273-8. doi: 10.1136/bjo.60.4.273.

Abstract

Visually evoked cortical potentials were studied in six patients with a homonymous and six with a bitemporal hemianopia by presenting a pattern-reversal stimulus separately to a temporal or nasal retinal area and by recording the responses from leads over the hemispheres. Homonymous visual field defects are characterized by a reduction of VECPs from the affected hemisphere. The disturbance of VECPs in bitemporal hemianopia is more serious, since the fibres from both retinal halves may be damaged by a chiasm tumour.

摘要

通过分别向颞侧或鼻侧视网膜区域呈现模式反转刺激,并记录半球导联的反应,对6例同向性偏盲患者和6例双颞侧偏盲患者的视诱发皮层电位进行了研究。同向性视野缺损的特征是患侧半球的视诱发皮层电位降低。双颞侧偏盲中视诱发皮层电位的紊乱更为严重,因为来自视网膜两半的纤维可能被视交叉肿瘤破坏。

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本文引用的文献

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