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不同因素对可调节人工晶体屈光调节力的影响
引用本文:朱海丰,方志良,刘永基,张昊. 不同因素对可调节人工晶体屈光调节力的影响[J]. 应用光学, 2007, 28(1): 109-114
作者姓名:朱海丰  方志良  刘永基  张昊
作者单位:南开大学,现代光学研究所,光电信息技术教育部重点实验室,天津,300071
基金项目:超视觉人眼波像差仪研究基金
摘    要:首先以Hwey-Lan Liou眼模型为基础,根据等效性原则,保持该眼模型中自然晶状体屈光度不变,对无穷远点成像。然后利用ZEMAX实现光线追迹的方法,将自然晶状体替换为可调节人工晶状体(accommodative intraocular lens,AIOL),结合对人眼成像质量影响的分析,研究了AIOL在眼内的移动度、材料、中心厚度、结构、光学面非球面性等因素对其屈光调节力的影响。结果表明:AIOL移动度对其调节力贡献最大,材料、中心厚度、结构对调节力基本无影响;具有非球面光学面的AIOL调节力相对较大。

关 键 词:可调节人工晶体  屈光调节力  眼模型  光线追迹  成像质量
文章编号:1002-2082(2007)01-0109-06
收稿时间:2006-09-19
修稿时间:2006-09-192006-09-29

Influence of different factors on diopter accommodation of accommodative intraocular lens
ZHU Hai-feng,FANG Zhi-liang,LIU Yong-ji,ZHANG Hao. Influence of different factors on diopter accommodation of accommodative intraocular lens[J]. Journal of Applied Optics, 2007, 28(1): 109-114
Authors:ZHU Hai-feng  FANG Zhi-liang  LIU Yong-ji  ZHANG Hao
Affiliation:Institute of Modern Optics,Nankai University Information Science and Technology, LIU Yong-ji, ZHANG Hao , the Key Laboratory of Opto-electronic MOE, Tianjin 300071,China
Abstract:Based on the Hwey-Lan Liou eye model and the equivalent rule,crystal lens is replaced with accommodative intraocular lens(AIOL) for imaging at infinite distance.Based on the analysis of imaging quality of human eye,the displacement,medium refractive index,central thickness,structure,aspheric refractive surface of the AIOL are studied with ZEMAX to implement light ray tracing method.Simulation results indicate that the displacement of AIOL has the greatest impact on its tunability;while it is hardly affected by the medium refractive index,central thickness,and structure.The AIOL with aspheric surface has better tunability.
Keywords:accommodative intraocular lens(AIOL)  diopter accommodation  eye model  light ray tracing  imaging quality
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