Biersdorf W R
Arch Ophthalmol. 1977 Jan;95(1):134-8. doi: 10.1001/archopht.1977.04450010134013.
The Davidson and Hemmendinger (DH) color rule was evaluated for color vision screening of normal and congenital color-defective subjects. Ninety-eight normal and 14 color-defective subjects were tested on the color rule under Macbeth illumination of 5,400 K. The color-defective subjects were also tested on the Nagel anomaloscope, the Farnsworth D-15, and the H-R-R pseudoisochromatic plates. The DH color rule performed as accurately as the anomaloscope and was superior to the other two tests in detecting anomalous trichromats and in discriminating protanomalous subjects. The color rule also discriminated dichromats from anomalous trichromats. For severe color-defective subjects (dichromats, achromats), the color rule was more time-consuming than the other tests and discrimination was less certain. Response patterns on the DH color rule and response variability of the different classifications are reported.
对戴维森和亨门丁格（DH）颜色规则进行了评估，用于正常和先天性色觉缺陷受试者的色觉筛查。在5400K的麦克白照明条件下，对98名正常受试者和14名色觉缺陷受试者进行了该颜色规则测试。还对色觉缺陷受试者进行了纳格尔色盲检查镜、法恩斯沃思D-15和H-R-R假等色板测试。DH颜色规则的表现与色盲检查镜一样准确，在检测异常三色视者和区分红色弱受试者方面优于其他两项测试。该颜色规则还能区分二色视者和异常三色视者。对于严重色觉缺陷受试者（二色视者、全色盲者），该颜色规则比其他测试耗时更长，且辨别不太确定。报告了DH颜色规则的反应模式以及不同分类的反应变异性。
