Phakic IOL结构及植入位置对人眼视觉质量的影响
发布时间：2018-10-29 12:11
【摘要】：以Hwey-Lan Liou眼模型为基础,构建近视及远视态人眼模型,利用ZEMAX光学设计软件通过光线追迹研究了不同结构的有晶体眼人工晶体(Phakic IOL)及植入位置对屈光矫正后人眼成像质量的影响。以Zernike标准多项式系数离焦项C4,及调制传递函数(MTF)对像质进行表征,结果表明:当植入位置固定,屈光度相同时,Phakic IOL厚度越小,对近视态人眼眼视觉矫正质量越好,对于远视态人眼,晶体厚度影响不明显,离焦项C4大小与人眼MTF曲线反应的人眼成像质量一致;在离焦矫正相同情况下,PIOL植入位置对眼光学系统成像质量基本无影响;凸凹结构的PIOL对人眼视觉矫正效果要优于其他结构。
[Abstract]:Based on Hwey-Lan Liou's eye model, the human eye models of myopia and hyperopia were constructed. ZEMAX optical design software was used to study the effects of different structures of intraocular lens (Phakic IOL) and implantation position on the imaging quality of human eyes after refraction correction by ray tracing. The defocus term C4 of Zernike standard polynomial coefficient and the modulation transfer function (MTF) were used to characterize the image quality. The results showed that the smaller the thickness of, Phakic IOL was when the implantation position was fixed and the diopter was the same, the better the quality of visual correction for myopic human eyes was. For hyperopic eyes, the effect of lens thickness is not obvious, and the defocus C4 is the same as the human eye imaging quality of MTF curve reaction. Under the same condition of defocus correction, the position of PIOL implantation has no effect on the imaging quality of optical system, and the effect of PIOL with convex and concave structure on visual correction of human eye is superior to that of other structures.
【作者单位】： 中国石油大学(华东)理学院;
【基金】：中央高校基本科研业务费专项资金(12CX04087A) 青岛市科技创新项目(12-1-4-7-(7)-jch)资助
【分类号】：R779.6
[Abstract]:Based on Hwey-Lan Liou's eye model, the human eye models of myopia and hyperopia were constructed. ZEMAX optical design software was used to study the effects of different structures of intraocular lens (Phakic IOL) and implantation position on the imaging quality of human eyes after refraction correction by ray tracing. The defocus term C4 of Zernike standard polynomial coefficient and the modulation transfer function (MTF) were used to characterize the image quality. The results showed that the smaller the thickness of, Phakic IOL was when the implantation position was fixed and the diopter was the same, the better the quality of visual correction for myopic human eyes was. For hyperopic eyes, the effect of lens thickness is not obvious, and the defocus C4 is the same as the human eye imaging quality of MTF curve reaction. Under the same condition of defocus correction, the position of PIOL implantation has no effect on the imaging quality of optical system, and the effect of PIOL with convex and concave structure on visual correction of human eye is superior to that of other structures.
【作者单位】： 中国石油大学(华东)理学院;
【基金】：中央高校基本科研业务费专项资金(12CX04087A) 青岛市科技创新项目(12-1-4-7-(7)-jch)资助
【分类号】：R779.6
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