Research output: Contribution to journal › Article › peer-review
Effect of laser UV radiation on the eye scleral tissue in patients with open-angle glaucoma. / Razhev, A. M.; Iskakov, I. A.; Churkin, D. S. et al.
In: Quantum Electronics, Vol. 48, No. 5, 01.01.2018, p. 481-486.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Effect of laser UV radiation on the eye scleral tissue in patients with open-angle glaucoma
AU - Razhev, A. M.
AU - Iskakov, I. A.
AU - Churkin, D. S.
AU - Orishich, A. M.
AU - Maslov, N. A.
AU - Tsibul’skaya, E. O.
AU - Lomzov, A. A.
AU - Ermakova, O. V.
AU - Trunov, A. N.
AU - Chernykh, V. V.
PY - 2018/1/1
Y1 - 2018/1/1
N2 - We report the results of an experimental study of the effect of short-pulse laser UV radiation on the eye scleral tissue. As samples, we used isolated flaps of the eye scleral tissue from the patients with open-angle glaucoma of the second and third stages. The impact was implemented using the radiation of an excimer XeCl laser with a wavelength of 308 nm and a laser with a wavelength tunable within from 210 to 355 nm. Depending on the problem to be solved, the energy density on the surface of the irradiated tissue varied from a fraction of mJ cm–2 to 15 J cm–2. For the first time we studied the optical properties of the intraocular fluid in the UV and blue spectral range. The study of the ablation process under the action of radiation with a wavelength of 308 nm showed that the rate of material evaporation can vary within 24 % – 30 % at an energy density above 7 J cm–2, depending on the glaucoma stage and the individual features of a patient. The excitation – emission matrices of laser-induced fluorescence (LIF) of the eye scleral tissue were studied experimentally using a laser with a wavelength tuned in the range 210 – 355 nm. We found the differences in the LIF spectra caused by the excitation wavelength and the open-angle glaucoma stage.
AB - We report the results of an experimental study of the effect of short-pulse laser UV radiation on the eye scleral tissue. As samples, we used isolated flaps of the eye scleral tissue from the patients with open-angle glaucoma of the second and third stages. The impact was implemented using the radiation of an excimer XeCl laser with a wavelength of 308 nm and a laser with a wavelength tunable within from 210 to 355 nm. Depending on the problem to be solved, the energy density on the surface of the irradiated tissue varied from a fraction of mJ cm–2 to 15 J cm–2. For the first time we studied the optical properties of the intraocular fluid in the UV and blue spectral range. The study of the ablation process under the action of radiation with a wavelength of 308 nm showed that the rate of material evaporation can vary within 24 % – 30 % at an energy density above 7 J cm–2, depending on the glaucoma stage and the individual features of a patient. The excitation – emission matrices of laser-induced fluorescence (LIF) of the eye scleral tissue were studied experimentally using a laser with a wavelength tuned in the range 210 – 355 nm. We found the differences in the LIF spectra caused by the excitation wavelength and the open-angle glaucoma stage.
KW - Effect of high-power laser UV radiation on biotissues
KW - Intraocular fluid
KW - Laser-induced fluorescence
KW - Open-angle glaucoma
KW - Optical properties of biotissues
KW - Pulsed UV excimer laser
UR - http://www.scopus.com/inward/record.url?scp=85048050612&partnerID=8YFLogxK
U2 - 10.1070/QEL16562
DO - 10.1070/QEL16562
M3 - Article
AN - SCOPUS:85048050612
VL - 48
SP - 481
EP - 486
JO - Quantum Electronics
JF - Quantum Electronics
SN - 1063-7818
IS - 5
ER -
ID: 13754279