| 基于个体眼光学结构的角膜与晶状体的像差补偿 |
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| 引用本文： | 刘铭,王肇圻,王雁,赵堪兴.基于个体眼光学结构的角膜与晶状体的像差补偿[J].光学学报,2008,28(10):1977-1982. |
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| 作者姓名： | 刘铭 王肇圻 王雁 赵堪兴 |
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| 作者单位： | 1. 南开大学现代光学研究所,天津,300071
2. 天津眼科医院屈光手术中心,天津,300020 |
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| 基金项目： | 国家自然科学基金，高等学校博士学科点专项科研项目，中国博士后科学基金 |
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| 摘 要： | 研究角膜对晶状体波前像差的影响对现行的个性化视觉矫正手术有-定的参考价值.运用光学设计软件Zemax,根据个体人眼的角膜地形图、眼内各部分轴向间距和全眼波前像差数据,为22只人眼构建了个体眼光学结构.基于个体眼光学结构和衍射光学理论计算了眼内、外不同位置处的波前,获得了角膜对晶状体波前像差的影响.结果表明,角膜和品状体像差存在补偿和叠加两种关系.大多数眼睛,角膜对晶状体像差有一定补偿作用.总体像散的均方根(RMS)值比品状体像散的RMS值减小0.08～1.48μm,相当于10.1%～77.5%.总体高阶像差的RMS值比晶状体高阶像差的RMS值减小了0.06～0.85 μm,相当于3.8%～79.4%,平均减小了50.7%.其中,球差和彗差的Zernike系数绝对值总体比晶状体分别减小了0.02～0.60μm和0.01～0.39μm,相当于4.3%～98.4%和2.5%～91.4%.
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| 关 键 词： | 医用光学与生物技术 视觉光学 波前像差 个体眼光学结构 |
| 收稿时间： | 2007/12/2 |
Aberrations Compensation of Cornea and Crystalline Lens Based on Individual Eye Model |
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| Liu Ming,Wang Zhaoqi,Wang Yan,Zhao Kanxing.Aberrations Compensation of Cornea and Crystalline Lens Based on Individual Eye Model[J].Acta Optica Sinica,2008,28(10):1977-1982. |
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| Authors: | Liu Ming Wang Zhaoqi Wang Yan Zhao Kanxing |
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| Institution: | Liu Ming1 Wang Zhaoqi1 Wang Yan2 Zhao Kanxing21Institute of Modern Optics,Nankai University,Tianjin 300071,China2Refractive Surgery Center,Tianjin Eye Hospital,Tianjin 300020,China |
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| Abstract: | It is valuable for the actual customized vision correction to study the influence of cornea on the wavefront aberrations of crystalline lens.Using optical design software Zemax,individual eye model has been constructed for 22 human eyes with measured individual cornea data,eyeball depth and wave-front aberrations.Based on the constructed individual eye model and diffraction propagation theory,wave-front on different planes inside and outside human eye is calculated,and therefore the influence of cornea on t... |
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| Keywords: | medical optics and biotechnology visual optics wavefront aberrations individual eye model |
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