A comparative study of thermal effects of 3 types of laser in eye: 3D simulation with bioheat equation

Journal of Thermal Biology
Amin JoukarHanieh Niroomand-Oscuii

Abstract

The application of laser in ophthalmology and eye surgery is so widespread that hardly can anyone deny its importance. On the other hand, since the human eye is an organ susceptible to external factors such as heat waves, laser radiation rapidly increases the temperature of the eye and therefore the study of temperature distribution inside the eye under laser irradiation is crucial; but the use of experimental and invasive methods for measuring the temperature inside the eye is typically high-risk and hazardous. In this paper, using the three-dimensional finite element method, the distribution of heat transfer inside the eye under transient condition was studied through three different lasers named Nd:Yag, Nd:Yap and ArF. Considering the metabolic heat and blood perfusion rate in various regions of the eye, numerical solution of space-time dependant Pennes bioheat transfer equation has been applied in this study. Lambert-Beer's law has been used to model the absorption of laser energy inside the eye tissues. It should also be mentioned that the effect of the ambient temperature, tear evaporation rate, laser power and the pupil diameter on the temperature distribution have been studied. Also, temperature distribution inside the ...Continue Reading

References

Mar 1, 1975·American Journal of Ophthalmology·L A PriebeA J Welch
Feb 1, 1988·Physics in Medicine and Biology·J A Scott
May 10, 2006·Computer Methods and Programs in Biomedicine·E Y K Ng, E H Ooi
May 1, 2012·International Journal for Numerical Methods in Biomedical Engineering·Arunn Narasimhan, Kaushal Kumar Jha

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Citations

Aug 13, 2015·Journal of Thermal Biology·Nico HeussnerWilhelm Stork
Mar 6, 2019·Lasers in Medical Science·Anna V DeryuginaAlexander G Samodelkin
Nov 5, 2019·Nanomedicine : Nanotechnology, Biology, and Medicine·Ramin Khademi, Abolhassan Razminia
Jan 22, 2021·Physical and Engineering Sciences in Medicine·Ibrahim AbdelhalimSalah Hassab Elnaby
Mar 7, 2021·International Journal of Molecular Sciences·Aleksandra CiosSławomir Lewicki

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