Phakic IOL結(jié)構(gòu)及植入位置對(duì)人眼視覺(jué)質(zhì)量的影響
發(fā)布時(shí)間：2018-10-29 12:11
【摘要】：以Hwey-Lan Liou眼模型為基礎(chǔ),構(gòu)建近視及遠(yuǎn)視態(tài)人眼模型,利用ZEMAX光學(xué)設(shè)計(jì)軟件通過(guò)光線追跡研究了不同結(jié)構(gòu)的有晶體眼人工晶體(Phakic IOL)及植入位置對(duì)屈光矯正后人眼成像質(zhì)量的影響。以Zernike標(biāo)準(zhǔn)多項(xiàng)式系數(shù)離焦項(xiàng)C4,及調(diào)制傳遞函數(shù)(MTF)對(duì)像質(zhì)進(jìn)行表征,結(jié)果表明:當(dāng)植入位置固定,屈光度相同時(shí),Phakic IOL厚度越小,對(duì)近視態(tài)人眼眼視覺(jué)矯正質(zhì)量越好,對(duì)于遠(yuǎn)視態(tài)人眼,晶體厚度影響不明顯,離焦項(xiàng)C4大小與人眼MTF曲線反應(yīng)的人眼成像質(zhì)量一致;在離焦矯正相同情況下,PIOL植入位置對(duì)眼光學(xué)系統(tǒng)成像質(zhì)量基本無(wú)影響;凸凹結(jié)構(gòu)的PIOL對(duì)人眼視覺(jué)矯正效果要優(yōu)于其他結(jié)構(gòu)。
[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.
【作者單位】： 中國(guó)石油大學(xué)(華東)理學(xué)院;
【基金】：中央高校基本科研業(yè)務(wù)費(fèi)專(zhuān)項(xiàng)資金(12CX04087A) 青島市科技創(chuàng)新項(xiàng)目(12-1-4-7-(7)-jch)資助
【分類(lèi)號(hào)】：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.
【作者單位】： 中國(guó)石油大學(xué)(華東)理學(xué)院;
【基金】：中央高校基本科研業(yè)務(wù)費(fèi)專(zhuān)項(xiàng)資金(12CX04087A) 青島市科技創(chuàng)新項(xiàng)目(12-1-4-7-(7)-jch)資助
【分類(lèi)號(hào)】：R779.6
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1 金晨暉;視覺(jué)系統(tǒng)成像質(zhì)量的評(píng)價(jià)分析[J];國(guó)際眼科雜志;2005年05期
2 朱海豐;張亞萍;李書(shū)光;黃柳賓;劉彥民;;非球面人工晶體設(shè)計(jì)及人眼瞳孔對(duì)其光學(xué)性能的影響[J];應(yīng)用光學(xué);2010年04期
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