Volume 5 Issue 5
Oct.  2012
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LI Rui, LIU Yong-ji, WANG Zhao-qi. Design of wavefront-guided lens based on individual eye optical model[J]. Chinese Optics, 2012, 5(5): 512-519. doi: 10.3788/CO.20120505.0512
Citation: LI Rui, LIU Yong-ji, WANG Zhao-qi. Design of wavefront-guided lens based on individual eye optical model[J]. Chinese Optics, 2012, 5(5): 512-519. doi: 10.3788/CO.20120505.0512

Design of wavefront-guided lens based on individual eye optical model

doi: 10.3788/CO.20120505.0512
  • Received Date: 21 Jun 2012
  • Rev Recd Date: 23 Aug 2012
  • Publish Date: 10 Oct 2012
  • A new method to design a wavefront-guided lens is proposed based on an individual eye optical model. The individual eye model is constructed, then by regarding the eyeball and the wavefront-guided lens as a single system. For the lens-eye system, the surface profiles of the lens are determined by optimizing the lens design. In addition, the visual performance of the lens-eye system is analyzed for both ?7? field of view and ?20? rotation of the eyeball. In comparison with the results from wavefront fitting, the prescription difference in defocus, astigmatism and in the axis of astigmatism are (-0.057?0.015) m-1, (0.015?0.013) m-1, (0.100?0.316)?, respectively. Furthermore, the visual acuity of the lens-eye system is above 1.25 because of the correction of the wavefront-guided lens. The visual acuity for the eight eyes is as high as 1.5. For a field of view of 0?, the performance for the eye without rotation is better than that of eyes with a rotation of 20?. However, for a field of view of 7?, the performance for eyes without rotation is much better than that of eyes with a rotation of ?20?. Experiments show that the prescription of the wavefront-guided lens from the new method is objective and reliable and it is possible to predict the visual quality of the eye with the wavefront-guided lens.

     

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  • [1] RUBIN M L. Spectacles:past, present and future[J]. Surv Ophthalmol.,1986,30(5):321-327. [2] LIANG J Z,GRIMM H,GOELZ S,et al.. Objective measurement of wave aberrations of the human eye with the use of a Hartmann-Shack wave-front sensor[J]. J. Opt. Soc. Am. A.,1994,11(7):1949-1957. [3] THIBOS L N,HONG X,BRANDLEY A. Accuracy and precision of objective refraction from wavefront aberrations[J]. J. Vis.,2004,4(4):329-351. [4] ATCHISON D A,SCOTT D H,CHARMAN W N. Hartmann-Shack technique and refraction across the horizontal visual field[J]. J. Opt. Soc. Am. A.,2003,20(6):965-973. [5] SALMON T O,THIBOS L N. Videokeratoscope-line-of-sight misalignment and its effect on measurements of corneal and internal ocular aberrations[J]. J. Opt. Soc.Am. A.,2002,20(1):657-669. [6] THIBOS L N,WHEELER W,HORNER D. Power vectors:an application of Fourier analysis to the description and statistical analysis of refractive error[J]. Optom. Vis. Sci.,1997,74(6):367-375. [7] WILLIAM H S,JANET P. Clinical investigation into the vision performance provided by the zon spectacle lens system[J]. Rev. Optom.,2008,10(15):1-15. [8] LIOU H,BRENNAN N A. Anatomically accurate, finite model eye for optical modeling[J]. J. Opt. Soc. Am.,1997,14(8):1684-1695. [9] GARNER L F,SMITH G. Changes in equivalent and gradient refractive index of the crystalline lens with accommodation[J]. Optom. Vis. Sci.,1997,74(2):114-119. [10] WANG W,WA ZH Q,WANG Y,et al.. Wave-front aberrations of cornea and crystalline lens[J]. Chin. Phys. Lett.,2006,23(3):607-609. [11] 瞿佳,姚进.眼镜学[M]. 北京:人民卫生出版社,2004:58-62. QU J,YAO J. Spectacles[M]. Beijing:People's Medical Publishing House,2004:58-62.(in Chinese) [12] GE J J,W ZH Q,WANG Y,et al.. Characteristics and new measurement method of NCSFs of individual color mechanisms of human vision[J]. Chin. Phys. Lett.,2010,27(5):054201(1-4). [13] 王之江,顾培森.实用光学技术手册 [M]. 北京:机械工业出版社,2007:618-620. WANG ZH J,GU P S. Handbook for Practical Optical Techniques[M]. Beijing:Chine Medicine Press,2007:618-620(in Chinese)
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