Ambach W, Daxecker F, Rehwald W
Wien Med Wochenschr. 1981 Aug 31;131(15-16):375-81.
It was tried to demonstrate the laser-test simultaneously great groups of persons and thus to divide them roughly into prospective emmetropes and different ametropes. For that an interference-phenomenon of laser-light on a screen is used to determine the refractive status. If the head is moved slowly in one direction, myopes register a movement of the interference-pattern in the contrary sense, hyperopes a movement in the same sense, while emmetropes do not recognize a direction of movement. The refractive status of 139 students was investigated. The results of the laser-test with a small group of 24 students were compared with the results of retinoscopia, in the course of which the laser-test proved to be very sensitive. In 86% of the cases laser correction and retinoscopic correction were identical within a variation of +/- 0.25 dpt. All ametropic patients were detected with great certainty. Even negligible, subjectively not perceptible ametropia could be detected. Thus it was shown, that only 60% of those, who have been found to be ametropic by the laser-test, really do need glasses or a better correction. For determination of astigmatism further experiments are necessary.
尝试通过激光测试同时对大量人群进行检测，从而大致将他们分为潜在正视者和不同类型的屈光不正者。为此，利用激光在屏幕上产生的干涉现象来确定屈光状态。如果头部沿一个方向缓慢移动，近视者会观察到干涉条纹的移动方向相反，远视者观察到的移动方向相同，而正视者则无法辨别移动方向。对139名学生的屈光状态进行了调查。将24名学生的小样本激光测试结果与检影验光结果进行了比较，结果表明激光测试非常灵敏。在86%的病例中，激光验光和检影验光结果在±0.25屈光度的范围内一致。所有屈光不正患者都能被准确检测出来。即使是轻微的、主观上难以察觉的屈光不正也能被检测到。结果显示，通过激光测试被判定为屈光不正的人中，只有60%的人真正需要佩戴眼镜或进行更好的矫正。为了确定散光，还需要进一步的实验。
