A quantitative scoring technique for panel tests of color vision.
A quantitative scoring technique for panel tests of color vision.
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发表时间：
1988
影响因子：
4.4
通讯作者：
A. Vingrys;P. King-Smith
中科院分区：
文献类型：
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作者：
A. Vingrys;P. King-Smith
色觉面板测试（例如 FM100-Hue 测试）缺乏对帽子排列进行评分的通用定量方法。我们描述了一种适用于所有面板测试的评分方法，该方法利用一种新技术来分析测试帽数据，即根据任何排列图案的色差向量（CDV）计算转动惯量。以 Farnsworth D-15 面板为例，我们详细说明了如何确定 CDV，并演示了计算惯性矩对于分析这些矢量的好处。惯性矩分析产生了三个量化盖排列的因素：第一个是识别颜色缺陷类型的混淆角；第二个是识别颜色缺陷类型的混淆角。第二个是混乱指数（C-index），它量化了相对于瓶盖完美排列的颜色损失程度；第三个是选择性指数（S-index），它量化了上限排列中的极性或缺乏随机性的数量。报告了对 53 名正常观察者和 66 名先天性颜色缺陷观察者的结果的回顾性研究，并提供了规范数据。我们证明该技术可以区分不同类型的颜色缺陷，并提供有关色觉丧失的有用的临床信息。同样，对 FM100-Hue 结果的较小样本进行了类似的观察。为任何希望使用该技术的人提供了 BASIC 计算机程序。
Panel tests of color vision (eg FM100-Hue test) lack a common quantitative method for the scoring of cap arrangements. We describe a scoring method applicable to all panel tests that makes use of a novel technique to analyze test cap data, namely the calculation of a moment of inertia from the Color Difference Vectors (CDVs) of any arrangement pattern. Using the Farnsworth D-15 panel, as an example, we specify how to determine CDVs and demonstrate the benefits of calculating a moment of inertia for the analysis of these vectors. Moment of inertia analysis yields three factors which quantify cap arrangements: the first is the confusion angle which identifies the type of color defect; the second is the Confusion index (C-index) which quantifies the degree of color loss relative to a perfect arrangement of caps; and the third is the Selectivity index (S-index) which quantifies the amount of polarity or lack of randomness in a cap arrangement. A retrospective study on the result of 53 normal and 66 congenitally color defective observers is reported and provides normative data. We show that the technique differentiates between different types of color defect and provides useful clinical information regarding a loss of color vision. Likewise, a similar observation is made on a smaller sample of FM100-Hue results. A BASIC computer program is provided for anyone wishing to use the technique.