Simulated effect of aspheric transition zone ablation profiles on optical aberrations after customized myopia ablation
Simulated effect of aspheric transition zone ablation profiles on optical aberrations after customized myopia ablation
复制标题
非球面过渡区消融轮廓对定制近视消融后光学像差的模拟影响
DOI：
10.1016/j.ijleo.2016.01.042
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发表时间：
2016-04
期刊：
影响因子：
3.1
通讯作者：
方利华
中科院分区：
文献类型：
--
作者：
方利华
了解和研究过渡区对激光屈光术后波前像差的影响，对提高视力矫正效果具有重要意义。基于波前引导屈光手术的光学区和非球面过渡区烧蚀曲线，研究了非球面过渡区对诱导波前像差的影响。非球面过渡区烧蚀剖面的类型对高阶波前像差有显著影响。诱发像差主要为球差和彗差。此外，9号像的诱导球像差RMS值较低，但诱导次生像散较大。此外，9号剖面的二次球差略低于其他剖面。残余的高阶像差可以通过创建一个优化的过渡区来减少，并可能导致术后视觉性能的改善，但它们不能被消除。
To understand and study the effect of transition zone on wavefront aberrations after laser refractive surgery is important for improving visual correction outcomes. Based on the ablation profiles of optical zone and aspheric transition zone for wavefront-guided refractive surgery, the influence of aspheric transition zone on the induced wavefront aberrations was studied. The types of ablation profile of aspheric transition zone had a significant influence on the induced higher-order wavefront aberrations. The induced aberrations were mainly spherical aberration and coma. In addition, the profile #9 showed that the induced spherical aberration had a lower RMS value than that in other profiles and yet the induced secondary astigmatism was relatively larger. Furthermore, secondary spherical aberration in the profile #9 was slightly lower than that in other profiles. The residual higher order aberrations may be decreased by creating an optimized transition zone and may be result in improving postoperative visual performance, but they cannot be eliminated.
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