Murphy M R, Randle R J, Williams B A
Aviat Space Environ Med. 1977 Jun;48(6):524-6.
The major purpose of this study was to determine whether 24-h variations in accommodation responses occur and, if they do, whether they should be considered in setting visual standards for flight-deck tasks. A recently developed servo-controlled optometer and focus stimulator were used to obtain monocular accommodation response data on four college-age subjects. No 24-h rhythm in accommodation was shown. Heart rate and blink rate also were measured and periodicity analysis showed a mean 24-h rhythm for both; however, blink rate periodograms were significant (p less than or equal to 0.003) for only two of the four subjects. Thus, with the qualifications that college students were tested instead of pilots and that they performed monocular laboratory tasks imstead of binocular flight-deck task, it is concluded that 24-h rhythms in accommodation responses need not be considered in setting visual standards for flight-deck task.
本研究的主要目的是确定调节反应是否存在24小时变化，如果存在，在制定驾驶舱任务视觉标准时是否应考虑这些变化。使用一种最近开发的伺服控制验光仪和聚焦刺激器，获取了四名大学生的单眼调节反应数据。未发现调节存在24小时节律。还测量了心率和眨眼率，周期性分析显示两者均有平均24小时节律；然而，四名受试者中只有两名的眨眼率周期图具有显著性（p小于或等于0.003）。因此，鉴于测试的是大学生而非飞行员，且他们执行的是单眼实验室任务而非双眼驾驶舱任务，得出的结论是，在制定驾驶舱任务视觉标准时无需考虑调节反应的24小时节律。
