Correction of eye refraction by nonablative laser action on thermomechanical properties of cornea and sclera

Journal Article · Thu Oct 31 00:00:00 EST 2002 · Quantum Electronics (Woodbury, N.Y.)

DOI:https://doi.org/10.1070/QE2002V032N10ABEH002315· OSTI ID:21459970

Sobol', E N; Vorobieva, N N; Omel'chenko, A I; Zakharkina, O L; Lunin, Valery V ^[1]; Bolshunov, A V ^[2]; Ignat'eva, Natalia Yu; Grokhovskaya, T E ^[3]

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1. Institute of Laser and Information Technologies, Russian Academy of Sciences, Troitsk, Moscow Region (Russian Federation)
2. Research Institute of Eye Diseases, Russian Academy of Medical Sciences, Moscow (Russian Federation)
3. Department of Chemistry, M.V. Lomonosov Moscow State University, Moscow (Russian Federation)

A new approach is proposed for correcting the eye refraction by controlled variation of the mechanical properties of the sclera and cornea upon nondestructive laser heating. Experimental ex vivo studies of rabbit and pig eyes show that laser-induced local denaturation of the sclera changes the refraction of the cornea by 3 diopters on the average, and the subsequent nondestructive irradiation of the cornea increases its plasticity, which leads to a further increase in its radius of curvature and a decrease in refraction down to 7 diopters.

• OSTI ID: 21459970
• Journal Information: Quantum Electronics (Woodbury, N.Y.), Vol. 32, Issue 10; Other Information: DOI: 10.1070/QE2002v032n10ABEH002315; ISSN 1063-7818
• Country of Publication: United States
• Language: English

Related Subjects

63 RADIATION, THERMAL, AND OTHER ENVIRONMENTAL POLLUTANT EFFECTS ON LIVING ORGANISMS AND BIOLOGICAL MATERIALS
CORNEA
CORRECTIONS
IRRADIATION
LASER-RADIATION HEATING
MECHANICAL PROPERTIES
PLASTICITY
RABBITS
REFRACTION
SWINE
THERMODYNAMIC PROPERTIES
ANIMALS
BODY
DOMESTIC ANIMALS
EYES
FACE
HEAD
HEATING
MAMMALS
ORGANS
PHYSICAL PROPERTIES
PLASMA HEATING
SENSE ORGANS
VERTEBRATES