Wechsler S
J Am Optom Assoc. 1978 Apr;49(4):431-4.
Residual astigmatism in a group of hard contact lens wearers and an equal size group of soft contact lens wearers was compared. Generally, the criteria used were to fit patients with refractive astigmatism greater than 0.75 D with hard lenses and those with refractive astigmatism of 0.25 D or less with soft ones. Those with refractive astigmatism between 0.25 D and 0.75 D were fitted with either modality depending upon other factors. The amount of residual astigmatism in the two groups proved to be nearly equal.
对一组硬性隐形眼镜佩戴者和同等规模的软性隐形眼镜佩戴者的残余散光进行了比较。一般来说，所采用的标准是，为屈光性散光大于0.75 D的患者佩戴硬性镜片，为屈光性散光为0.25 D或更低的患者佩戴软性镜片。屈光性散光在0.25 D至0.75 D之间的患者则根据其他因素选择其中一种方式佩戴。结果证明，两组的残余散光量几乎相等。
