许多物理学或生理学教材都论及眼的屈光,一般因限于篇幅等原因而不作系统讨论,本文从“简约眼”模型——单球面折射出发说明眼的成像并导出普通眼镜公式、隐形眼镜与普通眼镜的焦度关系式. 一、眼的成像人眼是多媒质组成的共轴球面系统,通过睫状肌改变水晶体表面曲率来调节眼的焦度.通常把正常眼 Many physical or physiological textbooks are concerned with the refraction of the eye, generally due to space limitations and other reasons without systematic discussion. This paper from the “simple eye ” model - single spherical refraction description of the eye imaging and derive ordinary glasses formula, Contact lenses and ordinary glasses power relationship.One eye imaging The human eye is a multi-media composed of coaxial spherical system, through the ciliary muscle surface to change the curvature of the crystal to adjust the power of the eye.Usually the normal eye