O. I. Baum, A. I. Omel'chenko, E. M. Kas'yanenko, R. V. Skidanov, N. L. Kazanskii, È. N. Sobol', A. V. Bolshunov, S. E. Avetisov, V. Ya. Panchenko, “Control of laser-beam spatial distribution for correcting the shape and refraction of eye cornea”, Kvantovaya Elektronika, 2020, Volume 50, Number 1,Pages <nobr>87

This article is cited in 17 papers

Topical issues of biophotonics

Control of laser-beam spatial distribution for correcting the shape and refraction of eye cornea

O. I. Baum^a, A. I. Omel'chenko^a, E. M. Kas'yanenko^a, R. V. Skidanov^b, N. L. Kazanskii^b, È. N. Sobol'^c, A. V. Bolshunov^d, S. E. Avetisov^d, V. Ya. Panchenko^a

^a Federal Research Centre 'Crystallography and Photonics', Russian Academy of Sciences, Institute of Photonic Technologies, Moscow, Troitsk
^b Image Processing Systems Institute, Russian Academy of Sciences, Samara
^c Arcuo Medical, Inc., Los Altos, USA
^d Research Institute of Eye Diseases, Russian Academy of Medical Sciences, Moscow

Abstract: The results of calculation and development of a device aimed at forming a laser beam with an annular intensity distribution and spatial mode homogenisation, as well as approbation of this device for biological phantoms and eyes in ex vivo experiments with laser non-ablative correction of the cornea profile, are presented. The radiation intensities and thermal field distributions on the surfaces of a phantom and isolated rabbit's eye are investigated. The absence of significant heating in the central region of eye is confirmed. It is shown that this device can be used for laser impact in order to change symmetrically eye's refraction.

Keywords: laser, refraction, annular intensity distribution, eye cornea, correction.

Received: 04.12.2019