Compensation of corneal aberrations by the internal optics in the human eye
Compensation of corneal aberrations by the internal optics in the human eye
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DOI：
10.1167/1.1.1
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发表时间：
2001-01-01
影响因子：
1.8
通讯作者：
Williams, David R.
中科院分区：
文献类型：
--
作者：
Artal, Pablo;Guirao, Antonio;Williams, David R.
目的是研究角膜光学像差和眼内光学像差（以晶体透镜为主要部件）对人眼总体像差的相对贡献。在年轻受试者的眼睛中独立测量三组波前像差数据：角膜的前表面、完整的眼睛和内部眼光学。发现角膜和内部光学器件两者的像差量大于完整眼睛的像差量，表明角膜和内部光学器件的第一表面部分地补偿彼此的像差并产生改进的视网膜图像。这一结果具有若干实际意义。例如，它显示了角膜地形图作为新屈光手术指南的局限性，并为这些应用提供了对眼波前传感价值的强烈认可。
The objective was to study the relative contribution of the optical aberrations of the cornea and the internal ocular optics ( with the crystalline lens as the main component) to overall aberrations in the human eye. Three sets of wave-front aberration data were independently measured in the eyes of young subjects: for the anterior surface of the cornea, the complete eye, and internal ocular optics. The amount of aberration of both the cornea and internal optics was found to be larger than for the complete eye, indicating that the first surface of the cornea and internal optics partially compensate for each other's aberrations and produce an improved retinal image. This result has a number of practical implications. For example, it shows the limitation of corneal topography as a guide for new refractive procedures and provides a strong endorsement of the value of ocular wave-front sensing for those applications.