Subjective measurement of high-order aberrations of the eye.
Subjective measurement of high-order aberrations of the eye.
复制标题
眼睛高阶像差的主观测量。
作者：
B. Howland;H. Howland
我们使用类似于Tscherning像差镜的装置，对受试者的绘图进行分析，获得55只眼睛的波像差表面。该分析允许用泰勒级数表示四阶波像差。结果显示，高阶像差的类型和严重程度多种多样，其中“柱面”像差很突出，而经典球面像差的情况很少见。我们计算了观测范围的单色调制传递函数曲线。总体研究结果表明，单色高阶像差在降低视觉图像质量方面的作用比迄今为止所假设的更为突出。
We used an apparatus similar to Tscherning's aberroscope, and analyzed subjects' drawings to obtain the wave aberration surfaces of 55 eyes. This analysis permitted a Taylor series representation of the wave aberrations to terms of the fourth order. The results revealed a wide variety in type and severity of high-order aberrations in which "cylindrical" aberrations were prominent and cases of classical spherical aberrations were rare. We computed the monochromatic modulation transfer function curves for the range of observations. The overall findings suggest a more prominent role for monochromatic high-order aberrations in degrading the visual image than has hitherto been assumed.