A statistical model of the aberration structure of normal, well-corrected eyes
A statistical model of the aberration structure of normal, well-corrected eyes
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DOI：
10.1046/j.1475-1313.2002.00059.x
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发表时间：
2002-09-01
影响因子：
2.9
通讯作者：
Hong, X
中科院分区：
文献类型：
--
作者：
Thibos, LN;Bradley, A;Hong, X
基于200只眼睛的标准数据构建了正常、矫正良好的眼睛的波前像差函数的统计模型，该模型表明，除了球面像差之外，人眼的高阶像差往往在平均值为零的情况下随机分布。描述任何单眼像差函数的泽尼克像差系数向量被建模为具有已知均值、方差和协方差的多元高斯随机变量。通过分析模型生成的 1000 个虚拟眼睛的统计特性来验证模型。该模型的潜在应用包括像差结构、视网膜图像质量、视觉性能、眼科镜片新颖设计的优点或屈光手术结果的个体差异的计算机模拟。
A statistical model of the wavefront aberration function of the normal, well-corrected eye was constructed based on normative data from 200 eyes which show that, apart from spherical aberration, the higher-order aberrations of the human eye tend to be randomly distributed about a mean value of zero. The vector of Zernike aberration coefficients describing the aberration function for any individual eye was modelled as a multivariate, Gaussian, random variable with known mean, variance and covariance. The model was verified by analysing the statistical properties of 1000 virtual eyes generated by the model. Potential applications of the model include computer simulation of individual variation in aberration structure, retinal image quality, visual performance, benefit of novel designs of ophthalmic lenses, or outcome of refractive surgery.