Effects of different corneal ring segments with identical total arc length on keratoconic eyes: a finite element study

Katoozian, H. R ; Sharif University of Technology | 2019

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  1. Type of Document: Article
  2. DOI: 10.1109/ICBME49163.2019.9030413
  3. Publisher: Institute of Electrical and Electronics Engineers Inc , 2019
  4. Abstract:
  5. Keratoconus (KC) is a progressive corneal disease. It is mostly characterized by corneal thinning and irregular steepening as well as formation of cone-shaped regions on the cornea. Amongst treatment modalities, implantation of Intrastromal Corneal Ring Segments (ICRSs) could decrease corneal surface irregularities. However, controversy exists over the selection of proper ICRSs. Here, the aim was to compare the effects of two sets of ICRSs. The ICRSs were identical both in cross-section and total arc length. The results showed that under normal physiological range of intraocular pressures (IOPs), the two selected ICRSs caused slightly different deformations in the same in-silico keratoconic eye model. © 2019 IEEE
  6. Keywords:
  7. Finite element modeling ; Intrastromal corneal ring ; Keratoconus ; Ocular biomechanics ; Biomedical engineering ; Carbon dioxide arc welding ; Finite element method ; Physiological models ; Thermoelectricity ; Arc length ; Cone-shaped ; Eye model ; Finite-element study ; Intra ocular pressure ; Physiological range ; Surface irregularities ; Treatment modality ; Rings (components)
  8. Source: 26th National and 4th International Iranian Conference on Biomedical Engineering, ICBME 2019, 27 November 2019 through 28 November 2019 ; 2019 , Pages 1-3 ; 9781728156637 (ISBN)
  9. URL: https://ieeexplore.ieee.org/document/8969112