van den Berg T J, IJspeert J K, de Waard P W
The Netherlands Ophthalmic Research Institute, Amsterdam.
Vision Res. 1991;31(7-8):1361-7. doi: 10.1016/0042-6989(91)90057-c.
The straylight function of the human eye depends on eye color, especially at larger angles of scattering. As a potential cause for this dependence, transmission of light through the ocular wall was measured, using a psychophysical method. For a light-blue eye effective transmission of the iris was 1% for red and 0.2% for green light. Also the eyewall around the iris transmits a significant amount of light. For the dark-brown eyes of pigmented individuals transmission is lower by two orders of magnitude. Although important, transmission proved to be only partly responsible for the pigmentation dependence, the other cause probably being reflection from the fundus.
人眼的杂散光函数取决于眼睛的颜色，尤其是在较大散射角度时。作为这种依赖性的一个潜在原因，使用心理物理学方法测量了光透过眼壁的情况。对于浅蓝色眼睛，虹膜对红光的有效透过率为1%，对绿光为0.2%。虹膜周围的眼壁也会透射大量的光。对于有色素沉着个体的深褐色眼睛，透射率要低两个数量级。尽管透射很重要，但事实证明它只是色素沉着依赖性的部分原因，另一个原因可能是来自眼底的反射。
