Process and apparatus for changing the curvature of the cornea

A process is described for changing the curvature of the cornea in which the light of a light source is focused in the cornea with a wavelength of approximately 1.5 mu m to 6 mu m so that the collagenic tissue shrinks selectively. The invention is characterized in that the light is applied continuou...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	WALKER, RUDOLF, OTTRUP, THEO, MATALIANA, MICHAEL, JEAN, BENEDIKT, BENDE, THOMAS
Format:	Patent
Sprache:	eng
Schlagworte:	BANDAGES, DRESSINGS OR ABSORBENT PADS DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF,TUBULAR STRUCTURES OF THE BODY, E.G. STENTS FILTERS IMPLANTABLE INTO BLOOD VESSELS FIRST-AID KITS FOMENTATION HUMAN NECESSITIES HYGIENE MEDICAL OR VETERINARY SCIENCE ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES PROSTHESES TREATMENT OR PROTECTION OF EYES OR EARS
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Beschreibung
Zusammenfassung:	A process is described for changing the curvature of the cornea in which the light of a light source is focused in the cornea with a wavelength of approximately 1.5 mu m to 6 mu m so that the collagenic tissue shrinks selectively. The invention is characterized in that the light is applied continuously at such a power that, although a temperature is reached which leads to irreversible coagulations of the collagenic tissue, the temperature within the coagulated region rises to values at which there is not yet a relaxation of the tissue.