利用Feldman(1974)倡导的后象消逝试验(flight of colours test)对视觉系统病变行色觉及后象持续时间测定,其结果显示患眼的后象持续时间较健眼缩短、色调也减少。方法:被检查者进入准暗室适应5分钟,然后在眼前2.5cm处用笔形灯对单眼照射10秒钟,另一眼遮盖,照射后立即闭眼,检查者用秒表记录由闭眼至后象消失的时间,同时记录后象的色调变化。检查结果对比视力、中心闪烁光值及Marcus Gunn瞳孔变化进行分析。作者对13例单眼性视神经病变进行了上述 The color vision and duration of afterimages of the visual system were measured using the flight of colors test advocated by Feldman (1974). The results showed that the duration of the posterior eye lesion was shorter and the color tone was reduced than that of the healthy eye. Methods: The examinee into the dark room to adapt to 5 minutes, and then 2.5cm at the front of the pen with a single eye irradiation 10 seconds, the other eye cover, immediately after irradiation, eyes closed, the examiner with a stopwatch to record after the eyes closed to disappear Of the time, at the same time after recording the color change of the icon. The test results were compared with eyesight, center blinking light and Marcus Gunn pupil changes. The authors conducted the above on 13 cases of unilateral optic neuropathy