正常受试者直接和间接对光反射的不对称性。
Inequality of the direct and consensual light reflexes in normal subjects.
作者信息
Smith S A, Ellis C J, Smith S E
出版信息
Br J Ophthalmol. 1979 Jul;63(7):523-7. doi: 10.1136/bjo.63.7.523.
Abstract
Anisocoria in darkness and during reflex responses to unilateral light stimulation was studied in 150 normal subjects with television pupillometry. It was commonly found that the direct light reaction of the stimulation eye exceeded the consensual reaction of the other eye. This light-induced anisocoria, termed 'contraction anisocoria', had a mean value of 0.075 mm or 6.1 % of light reflex amplitude. The measurement showed a high degree of repeatability in 20 subjects who were tested on two occasions a year apart. It occurred in the presence and absence of prior dark adaptation and increased proportionally with reflex amplitude as the intensity of the stimulating light was raised. IT IS CONCLUDED THAT, CONTRARY TO PREVIOUS OPINION, A SMALL DEGREE OF CONTRACTION ANISOCORIA IS NORMAL.
摘要
采用电视瞳孔测量法对150名正常受试者在黑暗环境中及对单侧光刺激的反射反应过程中的瞳孔不等大情况进行了研究。通常发现，受刺激眼的直接光反应超过了另一只眼的间接反应。这种由光引起的瞳孔不等大，称为“收缩性瞳孔不等大”，其平均值为0.075毫米，或光反射幅度的6.1%。在相隔一年接受两次测试的20名受试者中，测量结果显示出高度的可重复性。无论是否有先前的暗适应，它都会出现，并且随着刺激光强度的增加，与反射幅度成比例增加。得出的结论是，与之前的观点相反，小程度的收缩性瞳孔不等大是正常的。
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