Pierscionek B K, Chan D Y, Ennis J P, Smith G, Augusteyn R C
Department of Optometry and Russell Grimwade School of Biochemistry, University of Melbourne, Parkville, Victoria, Australia.
Am J Optom Physiol Opt. 1988 Jun;65(6):481-91. doi: 10.1097/00006324-198806000-00008.
A nondestructive method of constructing the three-dimensional refractive index profile of crystalline lenses is presented. The technique is based on earlier work in which the refractive index profile is deduced from measuring the refraction of a set of light rays that traverse the lens in a particular plane. However, the present approach requires fewer assumptions about the form of the refractive index profile so that the deduced results are less likely to reflect preconceived notions about the form of the refractive index distribution. An accurate model for the bovine crystalline lens has been constructed with the present approach. Without further adjustable parameters, our three-dimensional model of the lens refractive index profile is able to predict accurately the refraction of meridional rays that traverse the lens in the sagittal plane. Preliminary data on human lenses are also presented.
本文提出了一种构建晶状体三维折射率分布的无损方法。该技术基于早期的工作，即通过测量一组在特定平面内穿过晶状体的光线的折射来推导折射率分布。然而，目前的方法对折射率分布的形式所需假设较少，因此推导结果不太可能反映对折射率分布形式的先入之见。利用目前的方法已经构建了牛晶状体的精确模型。在没有进一步可调参数的情况下，我们的晶状体折射率分布三维模型能够准确预测在矢状面内穿过晶状体的子午线光线的折射。还给出了关于人晶状体的初步数据。
