Monochromatic aberrations of the human eye in a large population
Monochromatic aberrations of the human eye in a large population
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DOI：
10.1364/josaa.18.001793
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发表时间：
2001-08-01
影响因子：
1.9
通讯作者：
Williams, DR
中科院分区：
文献类型：
--
作者：
Porter, J;Guirao, A;Williams, DR
从基础和临床的角度来看，有必要知道眼睛的像差在正常人群中的分布，并能够尽可能有效地描述它们。我们使用改进的Hartmann-Shack波前传感器测量了109名正常人双眼在5.7 mm瞳孔处的单色波像差。我们分析了人眼像差在人群中的分布，发现大多数Zernike模式在整个人群中彼此相对不相关。主成分分析被应用于我们的波像差测量，由此产生的主成分仅提供了比Zernike模式稍微更紧凑的人口数据描述。这表明Zernike模是描述人眼波像差的有效基函数。尽管眼睛的像差在不同的受试者中似乎是随机变化的，但研究发现，左眼的许多像差与右眼的对应者显著相关。(C)2001年美国光学学会。
From both a fundamental and a clinical point of view, it is necessary to know the distribution of the eye's aberrations in the normal population and to be able to describe them as efficiently as possible. We used a modified Hartmann-Shack wave-front sensor to measure the monochromatic wave aberration of both eyes for 109 normal human subjects across a 5.7-mm pupil. We analyzed the distribution of the eye's aberrations in the population and found that most Zernike modes are relatively uncorrelated with each other across the population. A principal components analysis was applied to our wave-aberration measurements with the resulting principal components providing only a slightly more compact description of the population data than Zernike modes. This indicates that Zernike modes are efficient basis functions for describing the eye's wave aberration. Even though there appears to be a random variation in the eye's aberrations from subject to subject, many aberrations in the left eye were found to be significantly correlated with their counterparts in the right eye. (C) 2001 Optical Society of America.