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Thursday, October 15, 2020 | History

3 edition of Understanding corneal biomechanics through experimental assessment and numerical simulation found in the catalog.

Understanding corneal biomechanics through experimental assessment and numerical simulation

Ahmed Elsheikh

Understanding corneal biomechanics through experimental assessment and numerical simulation

by Ahmed Elsheikh

  • 237 Want to read
  • 12 Currently reading

Published by Nova Science Publishers in Hauppauge, N.Y .
Written in English

    Subjects:
  • Cornea,
  • Human mechanics,
  • Cornea -- physiology,
  • Biomechanics,
  • Models, Biological

  • Edition Notes

    Includes bibliographical references and index.

    StatementAhmed Elsheikh.
    Classifications
    LC ClassificationsQP477.8 .E47 2009
    The Physical Object
    Paginationp. ;
    ID Numbers
    Open LibraryOL23872214M
    ISBN 109781608766949
    LC Control Number2009044370
    OCLC/WorldCa461255371

    Elsheikh, A., & Garway-Heath, D. F. (). Predictive Numerical Simulation of Ocular Behaviour - Potential in Clinical Practice and Necessity of Understanding Corneal Micro-structure. In The 9th Cornea Conference. Cardiff.   The biomechanics of the cornea affect its functional responses and greatly impact vision. The physical composition of the cornea gives it viscoelastic properties, meaning it exhibits elements of both elasticity and viscosity. While various methods have been devised to study the biomechanics of the cornea, only the Ocular Response Analyzer allows direct analysis of corneal biomechanical.

    Arts biomechanics: an infant science: its challenges and future / Gongbing Shan and Peter Visentin --Understanding corneal biomechanics through experimental assessment and numerical simulation / Ahmed Elsheikh --Biomechanics concepts of bone-oral implant interface / Ahmed Ballo and Niko Moritz --Biomechanical remodeling of the diabetic.   The past three decades saw a rapid growth in the use of numerical modeling to improve understanding of corneal biomechanics and to predict ocular .

    Elsheikh A. Understanding corneal biomechanics through experimental assessment and numerical simulation. Eye and Vision Research Developments (series). Hauppauge, NY; Nova Science, Fam HB, Lim KL. Corneal elevation indices in normal and keratoconic eyes. J Cataract Refract Surg. , Results: Using the adaptive deforming mesh in numerical simulation of the air puff test improved the traditional understanding of how pressure distribution on cornea changes with time of the test. There was a mean decrease in maximum pressure (at corneal apex) of ± % and a development of negative pressure on a peripheral corneal.


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Understanding corneal biomechanics through experimental assessment and numerical simulation by Ahmed Elsheikh Download PDF EPUB FB2

Understanding Corneal Biomechanics Through Experimental Assessment and Numerical Simulation (Eye and Vision Research Developments): Medicine & Health Science Books @ ed by: 1. Request PDF | Understanding corneal biomechanics through experimental assessment and numerical simulation | The Ocular Biomechanics Group was established in.

This paper presents an experimental assessment of the epithelium's contribution to corneal biomechanics, involving the testing of human corneal buttons with and without the epithelium. The implications of the findings for predictive numerical simulations are discussed. Cited by:   Numerical modelling based on finite element analysis is used to represent the biomechanical behaviour of the cornea.

The construction details of the model including the discretisation method, the mesh density, the thickness distribution, the topography idealisation, the boundary conditions and the material properties, are optimised to improve by: Thanks to the corneal biomechanics, it is possible to measure what was previously not measurable.

This raises keratoconus diagnosis and glaucoma screening to a new level. Crucial for this: the perfect combination of biomechanical analysis, tonometry and pachymetry. learn more. Purpose: The study aimed to improve the accuracy of corneal numerical simulation by adopting a better representation of the corneal layered study considered both the shear and tensile behavior of the interface surfaces between stromal lamellae, and assessed the effect of modeling the cornea's three main layers—the epithelium, stroma, and endothelium with their respective.

A better understanding of corneal biomechanics will help to improve current refractive surgeries, allow an earlier diagnosis of ectatic disorders and a better quantification of treatments aiming at reinforcing the corneal tissue.

Experimental stud 58, 83, where she investigated the measurement, modification and simulation of. tion into cornea opens a promising perspective for the control of robotic surgery operation as well as the real-time simulation of corneal suture surgery.

Key words: cornea, biomechanics, insertion force, suture, mathematical simulation 1. Introduction The first step of suture surgery operation is the needle insertion into soft tissue. A numerical study has been conducted to quantify and eliminate the effect of changes in corneal mechanical stiffness on the IOP measurements made by the Corvis.

The study was based on numerical simulation of the Corvis procedure, applied on human eye models with different tomographies (including thickness profiles), ages and true IOPs. Managed care 9: 56 - 60 Libermann, U. (): Wirkung von oralem The journal of bone and joint surgery (American volume) 87 Lyon, E., G.

Über Dr. Mercola. Prof. Eberhard Spoerl, PhD is one of the inventors of corneal cross-linking. Since is head of the laboratory for biomechanics in the Technical University of Dresden and is investigating the biomechanical properties of the eye ball along with testing methods to stiffen the cornea.

through experimental assessment and numerical. through experimental assessment and numerical simulation. provide a more complete image of current understanding of corneal biomechanics.

Get this from a library. Understanding corneal biomechanics through experimental assessment and numerical simulation. [Ahmed Elsheikh].

Author(s): Elsheikh,Ahmed, Title(s): Understanding corneal biomechanics through experimental assessment and numerical simulation/ Ahmed Elsheikh. Country of Publication: United States Publisher: New York: Nova Science Publishers, c Likewise, the effect of modelling the three main corneal layers, epithelium, stroma and endothelium, has been assessed with their respective material properties.

84, 85 Other researchers have used a visco‐hyperelastic non‐isotropic numerical model for the corneal stromal tissue, considering the preferred orientation of the collagen fibres.

You can write a book review and share your experiences. Other readers will always be interested in your opinion of the books you've read. Whether you've loved the book or not, if you give your honest and detailed thoughts then people will find new books that are right for them. The range of central human corneal thickness is considered as normal [13–17].

The cornea is composed of different layers and the stroma represents about 90% of the corneal thickness. Consequently, we consider that the cornea is mainly composed of collagen for the values in Table 1. This book presents a unique approach not found in any other text for those looking to improve the clinical results of refractive surgery by gaining a better understanding of corneal biomechanics and the instrumentation related to it.

Written by leading experts in the field, this book provides. Find many great new & used options and get the best deals for Understanding Corneal Biomechanics Through Experimental Assessment and Numeri at the best online prices at. In this chapter, we fly over those devices commonly used in the clinic to characterize corneal biomechanics, show how experimental mechanical tests and numerical models are coupled to determine the mechanical properties of the corneal tissue, and, finally, present how different mechanical and optical outcomes of personalized refractive.

This process is experimental and the keywords may be updated as the learning algorithm improves. K.A. Buzard, B.R. Fundingsland, Assessment of corneal wound healing by interactive topography. J. W.M. Petroll, A.E. McKinney, C.J. Chuong, Computational models of the effects of hydration on corneal biomechanics and the results of radial.Books By Ahmed Elsheikh Understanding Corneal Biomechanics Through Experimental Assessment & Numerical Simulation (Eye and Vision Research Developments) Aug by Ahmed Elsheikh Paperback.

£ Temporarily out of stock.Mapped out in thoughtful, visionary prose, this book lights the way to clear- sighted, peaceful living. Informed by a combination of eastern and western philosophy.

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