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 language | English (US) |
|---|---|
| Title of host publication | Proceedings of SPIE - The International Society for Optical Engineering |
| Publisher | Publ by Int Soc for Optical Engineering |
| Pages | 61-71 |
| Number of pages | 11 |
| ISBN (Print) | 0819407909 |
| State | Published - Dec 1 1992 |
| Event | Ophthalmic Technologies II - Los Angeles, CA, USA Duration: Jan 19 1992 → Jan 21 1992 |
Publication series
| Name | Proceedings of SPIE - The International Society for Optical Engineering |
|---|---|
| Volume | 1644 |
| ISSN (Print) | 0277-786X |
Other
| Other | Ophthalmic Technologies II |
|---|---|
| City | Los Angeles, CA, USA |
| Period | 1/19/92 → 1/21/92 |
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.