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Visco-elastic and thermal-induced damaging in time-dependent reshaping of human cornea after conductive keratoplasty

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Abstract

With the aim of investigating the role played by both the radiofrequency-induced thermal damaging and the viscoelasticity of the tissue in human cornea surface reshaping—time dependent key factors for the success of the surgical outcome in the short-term post-intervention period—the Conductive Keratoplasty (CK, a surgical technique used for the correction of farsightedness) has been simulated with reference to the protocol adopted for moderate hyperopia. By means of a transient thermal analysis, the amount of the local thermal-induced tissue damaging has been computed in order to remap the constitutive properties of the corneal tissue. Successively, a mechanical non-linear analysis has been performed for predicting the corneal curvature around the optical zone during the post-surgery period. The study aims to contribute some firm thermo-mechanical roots to better understand the corneal tissue response to thermal insults and its reshaping predictability in a long period.

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Authors and Affiliations

  1. Department of Structures for Engineering and Architecture—DiSt, University of Naples Federico II, Naples, Italy

    M. Fraldi & L. Esposito

  2. Interdisciplinary Research Center for Biomaterials—CRIB, University of Naples Federico II, Naples, Italy

    M. Fraldi

  3. Department of Chemical, Materials and Production Engineering—DICMAPI, University of Naples Federico II, Naples, Italy

    A. Cutolo

  4. Department of Industrial and Information Engineering, Second University of Naples—SUN, Aversa, Italy

    A. D’Amore

Authors
  1. M. Fraldi
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  2. A. Cutolo
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  3. L. Esposito
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  4. A. D’Amore
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Correspondence to M. Fraldi.

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Fraldi, M., Cutolo, A., Esposito, L. et al. Visco-elastic and thermal-induced damaging in time-dependent reshaping of human cornea after conductive keratoplasty. Mech Time-Depend Mater 21, 45–59 (2017). https://doi.org/10.1007/s11043-016-9317-9

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  • DOI: https://doi.org/10.1007/s11043-016-9317-9

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