Design of individual intraocular lens based on wavefront aberrations
-
摘要: 在个性化人眼光学结构的基础上，运用ZEMAX软件的优化功能，设计了符合实际人眼光学特性的个性化人工晶体。该人工晶体不仅可以矫正离焦和像散，还引入了非球面可以矫正人眼的球差。文中将个性化人工晶体优化后得到的屈光度与经验公式计算得到的屈光度作了比较，在经验公式0.25D精确度的基础上有了提高，并直观地描述了个性化人工晶体植入前后人眼调制度和分辨率的变化情况。对样本人眼矫正后人眼分辨率最大变化由28 L/mm提高到118 L/mm，调制度由0.02提高至0.51。分析结果表明，个性化植入人工晶体的方法可以提高人眼矫正的精确度，不同人眼的波前特性不同，矫正效果也有相应的差异。Abstract: In this article, the individual intraocular lens in accordance with human visual characterists has been designed based on individual eye structure with optical design software ZEMAX, which can correct not only the defocus and astigmatism, but also the spherical aberrations by aspheric surface design. The power calculated from the individual intraocular lens is compered with that caculated from the experiential formula, showing an improvement of precision higher than 0.25D. The variation of the modulation and the resolution of human eye has been shown visually before and after the implantation of intraocular lens. The resolution has been improved from 28 L/mm to 118 L/mm, while the modulation has been improved from 0.02 to 0.51. The results show that the individual intraocular lens design has more accuracy, and the difference exists in correct effect because of the different optical properties of human eyes.
-
Key words:
- ophthalmic optics /
- phakic intraocular lens /
- wavefront aberrations /
- resolution
-
[1] 赵星, 张美慧, 方志良. 二次曲面前房型有晶体眼人工晶体的球差矫正特性分析[J]. 光子学报, 2011, 40(6):865-871. ZHAO X, ZHANG M H, FANG ZH L. Analysis of the spherical aberration correction with conical anterior chamber phakic intraocular lens[J]. Acta Photonia Sinica, 2011, 40(6):865-871.(in Chinese)
[2] ALESSANDRO F. Compromise between spherical and chromatic aberration and depth of focus in aspheric intraocular lenses[J]. J. Cataract Refract Surg., 2007, 33(3):497-509.
[3] 宋青山, 陈子林, 范慧雅. 非球面与球面人工晶体植入术后高阶像差及对比度视力的比较[J]. 国际眼科杂志, 2013, 13(7):1376-1378. SONG Q SH, CHEN Z L, FAN H Y. The comparison of higher-order aberration and contrast visual after the aspheric and spherical intraocular lens implantation[J]. Int. Eye Sci., 2013, 13(7):1376-1378.(in Chinese)
[4] 靳羽华, 赵艳, 蒋毅坚. 基于Zemax软件的准分子激光模拟[J]. 中国激光, 2013, 40(9):0902010-1-0902010-6. JIN Y H, ZHAO Y, JIANG Y J. Simulation of excimer laser based on zemax software[J]. Chinese J. Lasers, 2013, 40(9):0902010-1-0902010-6.(in Chinese)
[5] PIERS P A, WEEBER H A, NORRBY S. Theoretical comparison of aberration correcting customized and aspheric intraocular lenses[J]. J. Refract Surg., 2007, 23(4):374-384.
[6] PACKER M, FINE I H, HOFFMAN R S. Wavefront technology in cataract surgery[J]. Current Opinion in Ophthalmology, 2004, 15(1):56-60.
[7] LIANG J, WILLIAMS D R. Aberrations and retinal image quality of the normal human eye[J]. J. Opt. Soc. Am. A, 1997, 14(11):2873-2883.
[8] 刘丽丽, 黄涛, 蔡敏, 等. 大视场液晶自适应视网膜成像系统[J]. 光学 精密工程, 2013, 21(2):301-307. LIU L L, HUANG T, CAI M, et al. Retinal imaging system with large field of view based on liquid crystal adaptive optics[J]. Opt. Precision Eng., 2013, 21(2):301-307.(in Chinese)
[9] 李秦川, 杨亚培, 刘爽, 等. 相位共轭谐振腔改善激光器波前像差特性研究[J]. 光学与光电技术, 2013, 11(1):21-24. LI Q CH, YANG Y P, LIU SH, et al. Characteristics of phase conjugated resonator to improve the laser wavefront aberrations[J]. Optics & Optoelectronic Technology, 2013, 11(1):21-24.(in Chinese)
[10] THIBOS L N, HONG X, BRADLEY A, et al.. Accuracy and precision of objective refraction from wavefront aberrations[J]. J. Vision, 2004, 4(4):329-351.
[11] LIANG J, WILLIAMS D R, MILLER D T. Supernormal vision and high resolution retinal imaging through adaptive optics[J]. J. Opt. Soc. Am. A, 1997, 14(11):2884-2892.
[12] 饶丰. 大焦深人工晶体的设计[J]. 中国光学, 2012, 5(5):485-492. RAO F. Design of multi-focus intraocular lenses[J]. Chinese Optics, 2012, 5(5):485-492.(in Chinese)
[13] BLECKMANN H, KEUCH R J. Implantation of spheric phakic posterior chamber intraocular lenses in astigmatic eyes[J]. J. Cataract Refract Surg., 2002(28):805-809.
[14] LIN ZH D, ZOU Y P. Phakic Refractive Surgery[M]. Science Press, 2003:49.
[15] 程志峰, 李明, 程欣. 可见光变焦镜头结构优化设计[J]. 中国光学, 2012, 5(2):154-160. CHENG ZH F, LI M, CHENG X. Optimal structure design of visible zoom lens[J]. Chinese Optics, 2012, 5(2):154-160.(in Chinese)
[16] MOUOROULIS P. Visual Instrumentation:Optical Design and Engineering Principles[M]. New York:McGraw-Hill, 1999:278-280.
[17] 梁春, 沈建新, 钮赛赛. 基于半盲解卷积复原的高分辨率视网膜成像系统[J]. 光学 精密工程, 2012, 20(6):1374-1381. LIANG CH, SHEN J X, NIU S S. High resolution retinal imaging system based on semi-blind deconvolution restoration[J]. Opt. Precision Eng., 2012, 20(6):1374-1381.(in Chinese) -
点击查看大图
计量
- 文章访问数: 2216
- HTML全文浏览量: 801
- PDF下载量: 557
- 被引次数: 0
下载:
