Atchison D A, Joblin A, Smith G
Centre for Eye Research, School of Optometry, Queensland University of Technology, Australia.
J Opt Soc Am A Opt Image Sci Vis. 1998 Sep;15(9):2545-51. doi: 10.1364/josaa.15.002545.
The Stiles-Crawford effect is often invoked by vision scientists when predictions of the effects of aberrations and defocus on spatial visual performance are not borne out experimentally. Modeling the Stiles-Crawford effect as an apodization, we investigated the expected influence that it would have on spatial visual performance in the presence of 1-diopter primary spherical aberration at the edge of a 6-mm-diameter centered pupil. The changes in refraction produced by a high Stiles-Crawford effect, according to various criteria, were small at approximately 0.10 diopter. The Stiles-Crawford effect has only a small capability to compensate for defocus and spherical aberration. These results indicate that the Stiles-Crawford effect has little influence on spatial visual performance in the case of centered pupils. We suggest that the faith that has often been placed in the Stiles-Crawford effect to account for discrepancies between experimental results and expected results is not justified, at least for well-centered pupils and Stiles-Crawford effects.
当像差和离焦对空间视觉性能的影响预测未得到实验证实时，视觉科学家经常会提到斯泰尔斯-克劳福德效应。将斯泰尔斯-克劳福德效应建模为一种变迹，我们研究了在直径6毫米的居中瞳孔边缘存在1屈光度初级球差的情况下，它对空间视觉性能的预期影响。根据各种标准，高斯泰尔斯-克劳福德效应产生的屈光度变化很小，约为0.10屈光度。斯泰尔斯-克劳福德效应补偿离焦和球差的能力很小。这些结果表明，在居中瞳孔的情况下，斯泰尔斯-克劳福德效应对空间视觉性能影响很小。我们认为，至少对于居中良好的瞳孔和斯泰尔斯-克劳福德效应而言，常常寄希望于用斯泰尔斯-克劳福德效应来解释实验结果与预期结果之间的差异是不合理的。
