Thermal modeling of laser photothermo keratoplasty

Zhiping J. Zhou, Qiushi Ren, Gabriel M.D. Simon, Jean Marie Parel

Research output: Chapter in Book/Report/Conference proceedingConference contribution

7 Scopus citations

Abstract

Laser photo thermo keratoplasty (LPTK) is a refractive procedure that changes the curvature of the cornea by laser induced collagen shrinkage. To understand the temperature distribution induced by the laser radiation inside the cornea, a photo-thermal theoretical model is employed to simulate this process. The 4-D space-time temperature distributions within the cornea are calculated and depicted. The effects of the incident fluence and the laser spot size on temperature relaxation rate is discussed. Optimization of incident fluence on the surface of the cornea is made. The comparison between calculated and experimental regions of collagen shrinkage is given. Recommendations for the design of clinical surgery instruments are also presented.

Original languageEnglish (US)
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
PublisherPubl by Int Soc for Optical Engineering
Pages61-71
Number of pages11
ISBN (Print)0819407909
StatePublished - Dec 1 1992
EventOphthalmic Technologies II - Los Angeles, CA, USA
Duration: Jan 19 1992Jan 21 1992

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume1644
ISSN (Print)0277-786X

Other

OtherOphthalmic Technologies II
CityLos Angeles, CA, USA
Period1/19/921/21/92

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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  • Cite this

    Zhou, Z. J., Ren, Q., Simon, G. M. D., & Parel, J. M. (1992). Thermal modeling of laser photothermo keratoplasty. In Proceedings of SPIE - The International Society for Optical Engineering (pp. 61-71). (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 1644). Publ by Int Soc for Optical Engineering.