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Biomechanical model of human eyeball and its applications

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Wybrane pełne teksty z tego czasopisma
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Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
Attempts at the mechanical identification of the human eyeball are often not very effective for two reasons: the material parameters determined by tension tests on corneal and scleral tissue specimens are not sufficiently accurate while numerical models of the eye, integrating material and geometric parameters, are often based on unrealistic assumptions. The examples presented here cover refractive surgery, Goldmann applanation tonometry and the optical self-adjustment of the eye. The discussed problems are illustrated with calculations showing that it is possible to effectively use a biomechanical model of the eye to identify its material parameters. Also the handicaps, the Imbert-Fick law among them (numerical calculations do not corroborate this law), lying at the basis of applanation tonometry are demonstrated. The conclusions can help to create a realistic numerical model of the eyeball.
Czasopismo
Rocznik
Strony
401--413
Opis fizyczny
bibliogr. 19 poz.,
Twórcy
autor
  • Wrocław University of Technology, Deformable Body Mechanics Faculty Unit, Smoluchowskiego 25, 50-372 Wrocław, Poland
Bibliografia
  • [1] YEH H.-L., HUANG T., SCHACHAR R.A., A closed shell structured eyeball model with application to radial keratotomy, Journal of Biomechanical Engineering 122(5), 2000, pp. 504–510.
  • [2] HJORTDAL J.Ø., Regional elastic performance of the human cornea, Journal of Biomechanics 29(7), 1996, pp. 931–942.
  • [3] WOO S.L.-Y., KOBAYASHI A.S., SCHLEGEL W.A., LAWRENCE C., Nonlinear material properties of intact cornea and sclera, Experimental Eye Research 14(1), 1972, pp. 29–39.
  • [4] HILL R., Plasticity, Oxford University Press, London, 1950.
  • [5] SJONTOFT E., EDMUND C., In vivo determination of Young’s modulus for the human cornea, Bulletin of Mathematical Biology 49(2), 1987, pp. 217–232.
  • [6] ANDREASSEN T.T., SIMONSEN A.H., OXLUND H., Biomechanical properties of keratoconus and normal corneas, Experimental Eye Research 31(4), 1980, pp. 435–441.
  • [7] UCHIO E., OHNO S., KUDOH J., AOKI K., KISIELEWICZ L.T., Simulation model of an eyeball based on finite element analysis on a supercomputer, British Journal of Ophthalmology 83(10), 1999, pp. 1106–1111.
  • [8] ORSSENGO G.J., PYE D.C., Determination of true intraocular pressure and modulus of elasticity of the human cornea in vivo, Bulletin of Mathematical Biology 61(3), 1999, pp. 551–572.
  • [9] HOWLAND H.C., RAND R.H., LUBKIN S.R., A thin-shell model of the cornea and its application to corneal surgery, Refractive and Corneal Surgery 8(2), 1992, pp. 183–186.
  • [10] ANDERSON K., EL-SHEIKH A., NEWSON T., Application of structural analysis to the mechanical behaviour of the cornea, Journal of the Royal Society Interface 1(1), 2004, pp. 3–15.
  • [11] ELSHEIKH A., WANG D., KOTECHA A., BROWN M., GARWAY-HEATH D., Evaluation of Goldmann applanation tonometry using a nonlinear finite element ocular model, Annals of Biomedical Engineering 34(10), 2006, pp. 1628–1640.
  • [12] ALASTRUÉ V., CALVO B., PEÑA E., DOBLARÉ M., Biomechanical modeling of refractive corneal surgery, Journal of Biomechanical Engineering 128(1), 2006, pp. 150–160.
  • [13] ŚRÓDKA W., PIERSCIONEK B.K., Effect of material properties of the eyeball coat on optical image stability, Journal of Biomedical Optics 13(5), 2008, p. 054013.
  • [14] ŚRÓDKA W., ISKANDER D.R., Optically inspired biomechanical model of the human eyeball, Journal of Biomedical Optics 13(4), 2008, p. 044034.
  • [15] GOLDMANN H., SCHMIDT T., Uber Applanations-tonometrie, Ophthalmologica 134, 1961, p. 221.
  • [16] KAUFMAN P., ALM A., [EDS.], Adler’s Physiology of the Eye, Tenth Edition, Elsevier, Mosby Published, 2002.
  • [17] KASPRZAK H., JANKOWSKA-KUCHTA E., A new analytical approximation of corneal topography, Journal of Modern Optics 43(6), 1996, pp. 1135–1148.
  • [18] ASEJCZYK-WIDLICKA M., ŚRÓDKA W., KASPRZAK H., ISKANDER D.R., Influence of intraocular pressure on geometrical properties of a linear model of the eyeball: Effect of optical self-adjustment, Optik – International Journal for Light and Electron Optics 115(11–12), 2004, pp. 517–524.
  • [19] KASPRZAK H.T., A model of inhomogeneous expansion of the cornea and stability of its focus, Ophthalmic and Physiological Optics 17(2), 1997, pp. 133–136.
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-article-BPW7-0011-0037
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