Stager D R, Everett M, Swanson W H
Department of Ophthalmology, UT Southwestern Medical Center, Dallas.
J Pediatr Ophthalmol Strabismus. 1993 Jan-Feb;30(1):39-42. doi: 10.3928/0191-3913-19930101-10.
The AO-HRR pseudoisochromatic plates are commonly used for color vision testing in pediatric ophthalmology; however, the recommended procedure for obtaining proper illumination (a completely darkened room and standard illuminant) is typically not followed. To evaluate the role of the illuminant in clinical testing with the AO-HRR, 132 children, ages 3 to 16 years, were tested with and without the recommended illuminant (MacBeth Easel Lamp) and with the self-illuminated APT-5 Color Vision Tester. Twenty-two failed the AO-HRR with the recommended illuminant; 28 failed the AO-HRR without the illuminant. Only 13 failed the APT-5. The Cochran Q test for three related samples showed that the differences among the three groups were significant (Q = 17.1, P < .001). Diagnostic evaluation following clinical screening indicated that the differences among the tests were primarily due to false alarms, which were greatest without the recommended illuminant and least with the APT-5. These results demonstrate the importance of controlled illumination in color vision testing, either by using the recommended illumination with the AO-HRR or a self-illuminated test such as the APT-5.
AO-HRR假同色图常用于儿科眼科的色觉测试；然而，获得适当照明（完全黑暗的房间和标准光源）的推荐程序通常未被遵循。为了评估光源在使用AO-HRR进行临床测试中的作用，对132名3至16岁的儿童进行了测试，测试时分别使用和不使用推荐光源（MacBeth画架灯）以及自发光的APT-5色觉测试仪。22名儿童在使用推荐光源时AO-HRR测试未通过；28名儿童在不使用光源时AO-HRR测试未通过。只有13名儿童APT-5测试未通过。对三个相关样本的 Cochr an Q检验表明，三组之间的差异具有显著性（Q = 17.1，P <.001）。临床筛查后的诊断评估表明，测试之间的差异主要是由于误报，在不使用推荐光源时误报最多，而使用APT-5时误报最少。这些结果表明，在色觉测试中，通过使用AO-HRR的推荐照明或使用自发光测试（如APT-5）来控制照明非常重要。
