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

Journal Article · Wed Jan 01 00:00:00 EST 2020 · Quantum Electronics (Woodbury, N.Y.)

DOI:https://doi.org/10.1070/QEL17216· OSTI ID:23141873

Baum, O. I.; Omelchenko, A. I.; Kasianenko, E. M.; Skidanov, R. V.; Kazanskiy, N. L.; Sobol’, E. N.; Bolshunov, A. V.; Avetisov, S. E.

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. (paper)

• OSTI ID: 23141873
• Journal Information: Quantum Electronics (Woodbury, N.Y.), Vol. 50, Issue 1; Other Information: Country of input: International Atomic Energy Agency (IAEA); ISSN 1063-7818
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
BEAMS
CONTROL
CORRECTIONS
EQUIPMENT
HEATING
LASERS
PHANTOMS
REFRACTION
SPATIAL DISTRIBUTION
SURFACES