A model for calculating ablation profile to precompensate for spherical aberration and the higher order astigmatism is presented.
研究了补偿球差和高阶散光的像差与角膜切削量的关系，即补偿球差和高阶散光的角膜切削模型。
Results: Total higher order aberrations, spherical aberration, horizontal primary coma, and vertical primary coma, were increased significantly with increasing pupil size.
结果：总高阶相差、水平彗差、垂直彗差和球差均随瞳孔直径的增大而增大；
Conclusion Wavefront aberration-guided LASIK surgery can significantly reduce the increase in higher-order aberrations in order to improve visual quality.
结论波前像差引导的LASIK能显著降低术后高阶像差的增幅，从而改善视觉质量。
The rate of chromosomal aberration in the workers working in grass root hospitals(0.421%) was higher than those working in upper level hospitals(0.083%).
基层医院放射工作者染色体畸变率（0.421%）明显高于上级医院（0.083%）。
By combining DO lens elements with normal refraction elements, color aberration is corrected to levels even higher than is possible with fluorite elements.
DO镜片与普通的折射玻璃结合在一起，色散的校正水准甚至高于萤石镜片。
The relationship between higher-order aberration and contrast sensitivity and glare sensitivity before and after LASIK;
本文就高阶像差的研究进展及与视觉质量的关系等作一综述。
The relationship between higher-order aberration and contrast sensitivity and glare sensitivity before and after LASIK;
本文就高阶像差的研究进展及与视觉质量的关系等作一综述。
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