Rolak L A
Arch Neurol. 1985 Aug;42(8):759-60. doi: 10.1001/archneur.1985.04210090023007.
Flight of colors (FOC), the rapidly changing series of colored afterimages perceived when a bright light briefly strikes the eye, is impaired or absent in patients with lesions affecting central visual fields, especially optic neuropathies (ONs). The effectiveness of a bedside test of FOC using a pocket flashlight was compared with that of pattern-reversal visual evoked responses (PRVERs) in examining 74 subjects): 20 controls, seven patients with ON not due to multiple sclerosis (MS), 26 patients with MS, and 21 patients with possible MS and no clinical ON. The FOC test correctly identified 95 of 99 normal eyes and 45 of 49 eyes with ON, and accurately diagnosed 140 (95%) of 148 eyes overall. In 84 eyes examined by PRVER and FOC, the results agreed in 73 cases (87%), including those of subclinical ON.
颜色漂移（FOC）是指当强光短暂照射眼睛时所感知到的快速变化的一系列彩色后像，在影响中心视野的病变患者中，尤其是视神经病变（ON）患者中，FOC会受损或消失。在对74名受试者进行检查时，将使用袖珍手电筒进行FOC床边测试的效果与图形翻转视觉诱发电位（PRVER）的效果进行了比较，这74名受试者包括：20名对照者、7名非多发性硬化症（MS）所致ON患者、26名MS患者以及21名可能患有MS且无临床ON的患者。FOC测试正确识别出了99只正常眼睛中的95只以及49只ON眼睛中的45只，总体上准确诊断出了148只眼睛中的140只（95%）。在通过PRVER和FOC检查的84只眼睛中，结果在73例（87%）中一致，包括亚临床ON的情况。
