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Numerical study of the effect of vitreous support on eye accomodation

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Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
The aim of the current work was to extend previously created finite element models of accommodation such as the one by BURD [2] by addition of vitreous. The zonule consisted of anterior and central sets and vitreous was modelled as a linear elastic incompressible body. An inverse method was used to find some important, previously not documented, aspects. The model was found to behave according to the expectations, with results consistent with classical Helmholtz theory.
Rocznik
Strony
1--14
Opis fizyczny
Bibliogr. 19 poz., rys., wykr.
Twórcy
  • KTH Mechanics, Royal Institute of Technology, Osquars backe 18, SE-100 44 Stockholm, Sweden
autor
  • KTH Mechanics, Royal Institute of Technology, Osquars backe 18, SE-100 44 Stockholm, Sweden
autor
  • Saint-Petersburg State University, Department of Theoretical and Applied Mechanics, Universitetsky pr. 28, 198504 Petergof, Russia
Bibliografia
  • [1] BROWN N., The change in shape and internal form of the lens of the eye on accommodation, Experimental Eye Research, 1973, 15, 441–459.
  • [2] BURD H.J., JUDGE S.J., CROSS J.A., Numerical modelling of the accommodating lens, Vision Research, 2002, 42, 2235–2251.
  • [3] COOK R.D., MALKUS D.S., PLESHA M.E., WITT R.J., Concepts and applications of finite element analysis, forth edition, John Wiley & Sons Inc, New York, 2002.
  • [4] DREXLER W., BAUMGARTNER A., FINDL O., HITZENBERGER C.K., FERCHER A.F., Biometric investigation of changes in the anterior eye segment during accommodation, Vision Research, 1997, 37, 2789–2900.
  • [5] DUBBELMAN M., van der HEIJDE G.L., The shape of the aging human lens: curvature, equivalent refractive index and the lens paradox, Vision Research, 2001, 41, 1867–1877.
  • [6] FARNSWORTH P.N., SHYNE S.E., Anterior zonular shifts with age, Experimental Eye Research, 1979, 28, 291–297.
  • [7] FISHER R.F., The elastic constants of the human lens capsule, Journal of Physiology, 1969, 201, 1–19.
  • [8] FISHER R.F., The elastic constants of the human lens, Journal of Physiology, 1971, 212, 147–180.
  • [9] FISHER R.F., PETTET B.E., The postnatal growth of the capsule of the human crystalline lens, Journal of Anatomy, 1972, 112(2), 207–214.
  • [10] GARNER L.F., YAP M.K.H., Changes in ocular dimensions and refraction with accommodation, Ophthalmic and Physiological Optics, 1997, 17, 12–17.
  • [11] GLASSER A., CAMPBELL M.C.W., Biometric, optical and physical changes in the isolated human crystalline lens with age in relation to presbyopia, Vision Research, 1999, 39(11), 1991–2015.
  • [12] KRAG S., OLSEN T., ANDREASSEN T.T., Biomechanical characteristics of the human anterior lens capsule in relation to age, Investigative Ophthalmology and Visual Science, 1997, 38(2), 357–363.
  • [13] LUDWIG K., WEGSHEIDER E., HOOPS J.P., KAMPIK A., In vivo imaging of the human zonular apparatus with high-resolution ultrasound biomicroscopy, Graefe’s Archive for Clinical and Experimental Ophthalmology, 1999, 237(5), 361–371.
  • [14] SCHACHAR R.A., BAX A.J., Mechanism of human accommodation as analysed by nonlinear finite analysis, Annals of Ophthalmology Clinics, 2001, 33(2), 103–112.
  • [15] STOREY J.K., RABIE E.P., Ultrasonic measument of transverse lens diameter during accommodation, Ophthalmic and Physiological Optics, 1985, 5, 145–148.
  • [16] STRENK S.A., SEMMLOW J.L., STRENK L.M., MUNOZ P., GRONLUND-JACOB J., DEMARCO J.K., Agerelated changes in human ciliary muscle and lens: a magnetic resonance imaging study, Investigative Ophthalmology and Visual Science, 1999, 40(6), 1162–1169.
  • [17] SVETLOVA O.V., KOSHITZ I.N., Modern biomechanical ideas about the Helmholtz theory of accommodation, [in:] E.N. Iomdina and I.N. Koshitz (editors), Transactions: Ocular Biomechanics, 156–173, Moskow Helmholtz Research Institute for Eye Diseases, April 2001.
  • [18] Van ALPHEN G.W.H.M., GRAEBEL W.P., Elasticity of tissues involved in accommodation, Vision Research, 1991, 31(7/8), 1417–1438.
  • [19] Von HELMHOLTZ H., Physiological optics, Vol. 1, New York, Dover, 1962, pp. 142–172. English translation by J.P.C. Southall for the Optical Society of America (1924) from the 3rd German edition of Handbuch der Physiologischen Optik, Hamburg, Voss, 1909.
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-article-BPB2-0016-0008
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