| Original Articles |
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Influence of Misalignment on High-Order Aberration Correction for Normal Human Eyes |
| ZHAO Hao-Xin1,2;XU Bing1;XUE Li-Xia1;DAI Yun1;LIU Qian1;RAO Xue-Jun1 |
| 1Institute of Optics and Electronics, Chinese Academy of Science, Chengdu 6102092Graduate School of the Chinese Academy of Science, Beijing 100049 |
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| Cite this article: |
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ZHAO Hao-Xin, XU Bing, XUE Li-Xia et al 2008 Chin. Phys. Lett. 25 1309-1312 |
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Abstract Although a compensation device can correct aberrations of human eyes, the effect will be degraded by its misalignment, especially for high-order aberration correction. We calculate the positioning tolerance of correction device for high-order aberrations, and within what degree the correcting effect is better than low-order aberration (defocus and astigmatism)
correction. With fixed certain misalignment within the positioning tolerance, we calculate the residual wavefront rms aberration of the first-6 to first-35 terms along with the 3rd--5th terms of aberrations corrected, and the combined first-13 terms of aberrations are also studied under the same quantity of misalignment. However, the correction effect of high-order aberrations does not meliorate along with the increase of the high-order terms under some misalignment, moreover, some simple combined terms correction can achieve similar result as complex combinations. These results suggest that it is unnecessary to correct too much the terms of high-order
aberrations which are difficult to accomplish in practice, and gives confidence to correct high-order aberrations out of the laboratory.
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| Keywords:
42.66.Ew
42.15.Fr
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Received: 24 December 2007
Published: 31 March 2008
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| PACS: |
42.66.Ew
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(Physiology of eye; optic-nerve structure and function)
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42.15.Fr
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(Aberrations)
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