Use of corneal hardening agents in enzyme orthokeratology

Details Use of corneal hardening agents in enzyme orthokeratology Use of corneal hardening agents in enzyme orthokeratology

A - Human Necessities

61

F

A61F 9/013 (2006.01) A61F 9/00 (2006.01) A61K 9/00 (2006.01) A61L 27/36 (2006.01) A61F 2/14 (2006.01)

Patent

CA 2323199

An Enzyme Orthokeratology method is provided for correcting refractive errors in the eye of a subject mammal. Accelerating reshaping of the cornea is accomplished by administering a corneal hardening amount of a corneal hardening agent to the eye of the subject. Reformation is accomplished under the influence of a rigid contact lens or a series of lenses having a concave curvature that will correct a refractive error. The cornea rapidly reshapes its convex curvature to the concave curvature of the contact lens, rendering the eye emmetropic. The cornea is permitted to "harden" to retain the new emmetropic shape. After "hardening" has occurred, the lens rendering the eye emmetropic is removed.

L'invention porte sur un procédé d'orthokératologie enzymatique de correction des défauts de réfraction de l'oeil chez un patient. On accélère la remise en forme de la cornée par administration d'un agent durcisseur de la cornée dans l'oeil du patient. Le remodelage se fait sous la pression d'une ou plusieurs lentilles de contact rigides concaves qui corrigent les susdits défauts. La cornée change ainsi rapidement sa courbure convexe en courbure concave ce qui rend l'oeil emmétrope. On laisse la cornée durcir de manière à lui conserver sa nouvelle forme emmétrope, puis, le durcissement acquis, on retire les lentilles de remodelage.

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