AUGMENTED OPHTHALMIC LENS WITH ODD ASPHERE AXICON REFRACTIVE OPTICS

The invention relates to a novel ophthalmic lens designed to extend the depth of focus for a patient using the lens. The lens comprises an optic having an anterior surface, a posterior surface, and an optical axis. At least one of the anterior surface and the posterior surface includes a first zone...

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description The invention relates to a novel ophthalmic lens designed to extend the depth of focus for a patient using the lens. The lens comprises an optic having an anterior surface, a posterior surface, and an optical axis. At least one of the anterior surface and the posterior surface includes a first zone extending from the optical axis to a first radial boundary and a second zone extending from the first radial boundary to the edge of the optic. The first zone comprises a surface having the characteristics of an odd asphere axicon, while the second zone comprises a surface having the characteristics of an even asphere. If the ophthalmic lens is intraocular, haptics will be attached to the optic to hold the lens in place after insertion into a human ocular capsular bag. L'invention concerne une nouvelle lentille ophtalmique conçue pour augmenter la profondeur de focalisation d'un patient utilisant la lentille. La lentille comprend une optique dotée d'une surface antérieure, d'une surface postérieure et d'un axe optique. Au moins l'une des surfaces antérieures et postérieures comprend une première région s'étendant de l'axe optique à une première limite radiale et une seconde région s'étendant de la première limite radiale au bord de l'optique. La première région comprend une surface présentant les caractéristiques d'un axone à surface asphérique impair, tandis que la seconde région comprend une surface présentant les caractéristiques d'un axone à surface asphérique paire. Si la lentille ophtalmique est intraoculaire, des haptiques seront fixés à l'optique pour maintenir la lentille en place après son insertion dans un sac capsulaire oculaire humain.
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subjects BANDAGES, DRESSINGS OR ABSORBENT PADS
CONTACT LENSES
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
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
OPTICS
ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES
PERFORMING OPERATIONS
PHYSICS
PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCESIN A PLASTIC STATE
PROSTHESES
SPECTACLES
SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURESAS SPECTACLES
TRANSPORTING
TREATMENT OR PROTECTION OF EYES OR EARS
WORKING OF PLASTICS
WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
title AUGMENTED OPHTHALMIC LENS WITH ODD ASPHERE AXICON REFRACTIVE OPTICS
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