Color Contrast Perimetry: Hue Discrimination Defects in Acquired Dyschromatopsias
Color Contrast Perimetry: Hue Discrimination Defects in Acquired Dyschromatopsias
复制标题
颜色对比视野检查：获得性色素异常症的色调辨别缺陷
DOI：
10.1007/978-94-009-4275-2_39
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发表时间：
1987
影响因子：
4.4
通讯作者：
W. Hart
中科院分区：
文献类型：
--
作者：
W. Hart
本文应用彩色对比视野检查法对黄斑或视神经病变所致后天性色觉障碍患者的中心视野缺损进行了研究。患者根据其色调辨别缺陷的表观轴分类：（1）主要为红色/绿色;（2）主要为蓝色/黄色;（3）整体色调辨别缺陷。所有患者均采用计算机控制的彩色视频切线屏检查中心视野。与自动阈值静态视野检查进行比较。主要在蓝色/黄色轴的色调辨别缺陷的患者也被发现有相对保存的亮度和颜色对比敏感度在中央凹。相反，发现主要在红/绿色轴上具有色调辨别缺陷的那些患者具有不能保持中央凹功能的亮度和颜色对比度的中央视野缺陷。后天性色觉障碍的明显色调辨别缺陷主要是中央视野缺损的空间分布不均匀性和中央凹和旁视区的颜色对手机制的生理异质性的结果。这将进一步表明，色调辨别缺陷通常不是由传入视觉系统中的对手红/绿色或蓝/黄色通道的选择性损害产生的。
Color contrast perimetry was used to study the central visual field defects of patients with acquired dyschromatopsias resulting from diseases of the macula or optic nerve. Patients were classified according to the apparent axis of their hue discrimination defect: (1) predominantly red/green; (2) predominantly blue/yellow; (3) global hue discrimination deficit. A computer controlled color video tangent screen was used to examine the central visual field of all patients. Comparisons were made to automated threshold static perimetry. Patients with hue discrimination defects predominantly in a blue/yellow axis were also found to have relative preservation of both luminance and color contrast sensitivity at the fovea. Conversely, those patients that had hue discrimination defects predominantly in a red/green axis were found to have central visual field defects for both luminance and color contrast that failed to preserve foveal function. It is proposed that the apparent hue discrimination defects in acquired dyschromatopsias are principally the result of the heterogenous spatial distribution of central visual field defects and the physiologic heterogeneity of color opponent mechanisms in the foveal and parafoveal visual field. This would further suggest that hue discrimination defects are usually not produced by selective impairment of opponent red/green or blue/yellow channels in the afferent visual system.
颜色对比度视野检查。
影响因子：
4.4
作者：
HartJr,WM;Hartz,RK;Hagen,RW;Clark,KW
通讯作者：
Clark,KW
青光眼视野缺损的颜色视野检查。
影响因子：
13.7
作者：
HartJr,WM;Gordon,MO
通讯作者：
Gordon,MO