Corneal polarization in the living human eye explained with a biaxial model.
Corneal polarization in the living human eye explained with a biaxial model.
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用双轴模型解释活体人眼的角膜偏振。
DOI：
10.1364/josaa.4.000082
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发表时间：
1987
期刊：
影响因子：
--
通讯作者：
S. Verhelst
中科院分区：
文献类型：
--
作者：
G. V. van Blokland;S. Verhelst
我们已经应用米勒矩阵椭偏法来评估光束的偏振状态的变化，已经双通过眼介质和分散在人眼眼底在体内。在瞳孔平面上的几个位置，它们一起覆盖了扩大的瞳孔区域，穆勒矩阵被评估。由它们计算了滞后量的大小和特征向量的方向。通过测量沿水平子午线的延迟作为波长、视色素密度和视网膜固定位置的函数来调查延迟过程的性质。此外，用圆偏振光从虹膜上的偏振模式拍摄照片。我们假设角膜表现为一个双轴晶体，其最快的主轴垂直于其表面，最慢的是鼻向下。计算了具有这种角膜的模型眼对光的延迟，并与实验数据进行了比较。
We have applied Mueller matrix ellipsometry to assess the change in the state of polarization of a light beam that has double passed the ocular media and is scattered at the fundus of the human eye in vivo. At several positions in the pupil plane, which together cover the area of the dilated pupil, Mueller matrices are assessed. From them the magnitude of the retardation and the orientation of the eigenvector are calculated. The properties of the retardation process are surveyed by measuring the retardation along a horizontal meridian as a function of wavelength, density of visual pigment, and location of retinal fixation. Furthermore, photographs are taken from the polarization patterns on the iris with circularly polarized light. We posit that the cornea behaves as a biaxial crystal with its fastest principal axis normal to its surface and its slowest nasally downward. The retardation of light by a model eye with such a cornea is calculated, and the results are compared with the data.