Features of Laser-Induced Modification of Sclera and Cornea
- Authors: Ignat’eva N.Y.1, Zakharkina O.L.2, Dadasheva A.R.3, Sadekova A.R.1, Bagratashvili V.N.2, Lunin V.V.1
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Affiliations:
- Department of Chemistry
- FNITs Crystallography and Photonics
- Moscow State University (Baku Branch)
- Issue: Vol 92, No 4 (2018)
- Pages: 674-677
- Section: Chemical Kinetics and Catalysis
- URL: https://journals.rcsi.science/0036-0244/article/view/169957
- DOI: https://doi.org/10.1134/S0036024418040076
- ID: 169957
Cite item
Abstract
Results are presented from studying collagen degradation in scleral and corneal tissues upon CW IR laser irradiation at a wavelength of 1.56 μm and powers of 1.4 and 7 W. The exposure time is such that the radiometrically determined maximum tissue temperature ranges from 55 to 70°C. It is shown that at a power of 1.4 W, laser-induced collagen denaturation in sclera and cornea starts at 55 and 60°C, respectively. When the power is increased to 7 W, the temperature of denaturation onset rises by 2°C. These findings are discussed from the viewpoint of the joint photothermal and photomechanical effects of laser irradiation.
About the authors
N. Yu. Ignat’eva
Department of Chemistry
Author for correspondence.
Email: nyu@kge.msu.ru
Russian Federation, Moscow, 119991
O. L. Zakharkina
FNITs Crystallography and Photonics
Email: nyu@kge.msu.ru
Russian Federation, Moscow, 119333
A. R. Dadasheva
Moscow State University (Baku Branch)
Email: nyu@kge.msu.ru
Azerbaijan, Baku, AZ1065
A. R. Sadekova
Department of Chemistry
Email: nyu@kge.msu.ru
Russian Federation, Moscow, 119991
V. N. Bagratashvili
FNITs Crystallography and Photonics
Email: nyu@kge.msu.ru
Russian Federation, Moscow, 119333
V. V. Lunin
Department of Chemistry
Email: nyu@kge.msu.ru
Russian Federation, Moscow, 119991