Hampson Karen M, Mallen Edward A H, Dainty Christopher
Department of Optometry, University of Bradford, UK.
Opt Lett. 2006 Jan 15;31(2):184-6. doi: 10.1364/ol.31.000184.
We measured the wavefront aberrations of the eyes of five subjects with a Shack-Hartmann sensor sampling at 21.2 Hz and decomposed the measurements into Zernike aberration terms up to and including the fifth radial order. Coherence function analysis was used to determine the common frequency components between the aberrations within subjects. We found the results to be highly subject dependent. The coherence values were typically <0.4. Possible reasons for this are discussed. Coherence function analysis is a useful tool that can be used in future investigations to determine correlations between the aberration dynamics of the eye and other physiological mechanisms.
我们使用采样频率为21.2 Hz的夏克-哈特曼传感器测量了五名受试者眼睛的波前像差，并将测量结果分解为直至并包括第五径向阶数的泽尼克像差项。采用相干函数分析来确定受试者内部像差之间的共同频率成分。我们发现结果高度依赖于个体。相干值通常<0.4。文中讨论了造成这种情况的可能原因。相干函数分析是一种有用的工具，可用于未来的研究，以确定眼睛像差动态与其他生理机制之间的相关性。
