Aspheric Lens Patents (Class 623/6.23)
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Publication number: 20100063588Abstract: Disclosed is an intraocular lens that is inserted inwardly into a capsular sac. One embodiment of the present invention provides an intraocular lens inserted inwardly into a capsular sac including an optic portion including a first optic body whose central region has a smaller thickness than a circumference of the central region and a second optic body coupled to the first optic body and whose central region has the same or higher thickness as/than the first optic body; and a haptic portion including a connection bar coupled to the optic portion and first support bar coupled to a circumference of the connection bar to be in contact with an inner surface of the capsular sac.Type: ApplicationFiled: September 21, 2007Publication date: March 11, 2010Inventor: Kyong Jin Park
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Patent number: 7637947Abstract: An accommodating intraocular lens includes an optic portion, a haptic portion. The optic portion of the lens includes an actuator that deflects a lens element to alter the optical power of the lens responsive to forces applied to the haptic portion of the lens by contraction of the ciliary muscles and a secondary deflection mechanism. Movement of the lens element by the actuator causes the lens element to deform and the secondary deflection mechanism causes the lens to further deform.Type: GrantFiled: December 27, 2006Date of Patent: December 29, 2009Assignee: PowerVision, Inc.Inventors: David John Smith, Terah Whiting Smiley, John A. Scholl, Denise Horrilleno Burns, Victor Esch
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Publication number: 20090270983Abstract: The invention concerns an intraocular lens with negative spherical aberration and a method of determining the refractive power of intraocular lenses. In the environment of immersion medium the intraocular lens refracts an incoming wave with an elliptically oblongly curved wave front into an outgoing wave with a substantially spherical wave front.Type: ApplicationFiled: June 15, 2009Publication date: October 29, 2009Applicant: Acri. Tec Gesellschaft FuerInventors: Werner Fiala, Christine Kreiner
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Publication number: 20090204208Abstract: The present invention provides an intraocular lens (IOL) having an optic with a posterior and an anterior refractive surfaces, at least one of which has an aspherical profile, typically characterized by a non-zero conic constant, for controlling the aberrations of a patient's eye in which the IOL is implanted. Preferably, the IOL's asphericity, together with the aberrations of the patient's eye, cooperate to provide an image contrast characterized by a calculated modulation transfer function (MTF) of at least about 0.25 and a depth of field of at least about 0.75 Diopters.Type: ApplicationFiled: April 16, 2009Publication date: August 13, 2009Inventor: Michael J. Simpson
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Publication number: 20090164008Abstract: In one aspect, the present invention provides an intraocular lens (IOL) that includes an optic comprising an anterior surface, a posterior surface, and a plurality of diffractive zones disposed on one of those surfaces. The surface having the diffractive zones has a profile characterized by a combination of aspheric and toric components.Type: ApplicationFiled: December 21, 2007Publication date: June 25, 2009Inventors: Xin Hong, Drew Morgan
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Publication number: 20090132041Abstract: The invention concerns an intraocular lens for the correction of astigmatic ametropia, which has both a torically refractive front face and a torically refractive rear face. The intraocular lens also has a torically refractive lens surface whose section curve in at least one principal meridian is described by an asphere. Finally the intraocular lens has a torically refractive lens surface with two principal meridians which include an intermediate angle that is not equal to 90°.Type: ApplicationFiled: June 22, 2006Publication date: May 21, 2009Applicant: ARC.TEC AG Gesellschaft Fur Ophthalmologische ProdukteInventors: Werner Fiala, Christine Kreiner
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Publication number: 20090125105Abstract: The invention relates to a novel artificial intraocular lens (IOL) and a method for improving such a lens in the field of opthalmology, with surface shape modifications that differ from perfect spherical geometries. The intraocular lens takes into account the natural optical configuration of the human vision apparatus, for example, visual axis tilt and pupil decentration. In addition, the method accounts for potential positioning errors caused by implantation and surgery effects.Type: ApplicationFiled: November 4, 2008Publication date: May 14, 2009Inventors: Cedric Lesage, Mario Gerlach
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Publication number: 20090059163Abstract: An aspect of the invention is directed to an ophthalmic lens, comprising at least one optic having at least one aspheric surface, the lens configured such that, when applied to an average eye, for a bandwidth between a wavelength of 656 nm and a wavelength of 486 nm, at a location disposed in a range 0.7 to 1.0 of the normalized clear aperture of the lens, the spherochromatism being less than 25 waves of the center wavelength of the bandwidth. In some embodiments, the lens is multizonal.Type: ApplicationFiled: August 20, 2008Publication date: March 5, 2009Inventor: Candido D. Pinto
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Publication number: 20080281414Abstract: A method is disclosed to place supplemental IOLs in the anterior chamber, posterior chamber or both, in combination with the eye's natural lens or a separate, implanted artificial lens.Type: ApplicationFiled: April 18, 2008Publication date: November 13, 2008Inventor: Takayuki Akahoshi
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Publication number: 20080281415Abstract: An accommodating intraocular lens where the optic is moveable relative to the ends of the extended haptic portions. The lens comprises an optic made from a flexible material combined with haptics capable of multiple flexions without breaking. The haptics having in longitudinal cross section wide and deep hinges adjacent the optic to better allow the elastic hinges to “stretch” when the optic is subjected to posterior pressure thus allowing the optic to move forward relative to both the outer and inner ends of the haptics. When this movement is combined with the movement of the optic relative to the outer ends of the haptics, the anterior movement of the whole lens, and a change in shape of the optic, the refractive power of the eye is further enhanced.Type: ApplicationFiled: October 26, 2007Publication date: November 13, 2008Inventor: J. Stuart Cumming
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Publication number: 20080221676Abstract: The present invention relates to a first intraocular lens (120) embodiment having a retainer plate (124) with an annular region surrounding a central opening and an optical lens (122) removably attached to the retainer plate within the central opening. Also disclosed is a second intraocular lens embodiment having a retainer plate with a porous or perforated annular region surrounding a central opening. An optical lens (122) is integral with the retainer plate (124) within the central opening. Methods of implanting these intraocular lens (120) embodiments into a patient's eye are disclosed. Also described here are methods of replacing the first intraocular lens embodiment after it has been implanted in a patient's eye.Type: ApplicationFiled: July 21, 2005Publication date: September 11, 2008Applicants: Cornell Research Foundation, Inc., University of HoustonInventors: Jackson D. Coleman, Adrian Glasser
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Publication number: 20080027538Abstract: An accommodating intraocular lens where a polyspheric optic is moveable relative to the outer ends of the extended portions. The lens comprises an optic made from a flexible material combined with extended portions that is capable of multiple flexions without breaking. The optic with a single focal point has a central area of increased power of less than 1.0 diopter to aid near vision. A method is disclosed of implanting the present lens in the non-dominant eye of a patient.Type: ApplicationFiled: July 27, 2006Publication date: January 31, 2008Inventor: J. Stuart Cumming
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Publication number: 20070282438Abstract: The present invention is generally directed to multi-surface and/or multi-element intraocular lenses (IOLs) in which a plurality of surfaces are adapted to provide compensation for a variety of aberrations, and in particular, for off-axis aberrations such as coma or spherical aberration. In one aspect, an intraocular lens is disclosed that includes a posterior optic and an anterior optic. One optic provides compensation for a radially symmetric aberration and the other provides compensation for a radially asymmetric aberration.Type: ApplicationFiled: May 31, 2006Publication date: December 6, 2007Inventors: Xin Hong, Mutlu Karakelle, XiaoXiao Zhang
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Patent number: 7287852Abstract: Circular and annular lens zones are disclosed which, at a given lens area, exhibit a depth of focus of a lens of considerably smaller area. The large depth of focus is achieved by imparting the lens zones a refractive power profile. An assembly of such large depth of focus lens zones represents a lens of large diameter which lens, in polychromatic light, exhibits essentially the same depth of focus as the lens zones from which it is composed.Type: GrantFiled: June 29, 2004Date of Patent: October 30, 2007Inventor: Werner J. Fiala
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Patent number: 7192444Abstract: An aspheric soft intraocular lens, having an optical power surface, which may have multiple radii portions or aspherical portions, as well as spherical portions, intended to replace the crystalline lens of a patient's eye, in particular after a cataract extraction. Such an aspheric soft lens is molded in a coined mold. A pair of core pins, positioned within the mold cavity during the lens forming process, will produce a pair of haptic-mounting holes within the lens. As the lenses are subsequently tumbled to remove flash, indentations will form adjacent to the haptic-mounting holes. These indentations allow for tangential attachment of the haptic to the lens which, in turn, enables maximum flexibility without exceeding the width of the optic.Type: GrantFiled: May 24, 2002Date of Patent: March 20, 2007Assignee: Advanced Medical Optics, Inc.Inventors: Larry W. Blake, Lee T. Nordan
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Patent number: 7150759Abstract: An intraocular lens (IOL) includes an optic for focusing light and an accommodation assembly for axially moving and/or deforming the optic in response to naturally occurring actions of the eye, thus allowing a patient to more effectively focus on near objects. In addition, the optic may be multifocal or aspheric, wherein the maximum add power of the lens is combined with the increase in diopter power obtained through axial movement and/or deformation of the optic, resulting in enhanced accommodation.Type: GrantFiled: September 12, 2003Date of Patent: December 19, 2006Assignee: Advanced Medical Optics, Inc.Inventors: Marlene L. Paul, Daniel G. Brady, Michael Lowery
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Patent number: 7137702Abstract: An intraocular correction lens has at least one aspheric surface which when its aberrations are expressed as a linear combination of polynomial terms, is capable of, in combination with a lens in the capsular bag of an eye, reducing similar such aberration terms obtained in a wavefront having passed the cornea, thereby obtaining an eye sufficiently free from aberrations.Type: GrantFiled: January 30, 2004Date of Patent: November 21, 2006Assignee: AMO Groningen B.V.Inventors: Patricia Ann Piers, Sverker Norrby
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Patent number: 7060288Abstract: The present invention is concerned with biomedical device comprising (a) a biocompatible organic or inorganic bulk material and (b) a coating comprising polymerizable carbon-carbon double bonds covalently attached to at least part of the bulk surface. The biomedical devices of the invention are radiation sensitive and may be used, for example, as ready-to-use corneal onlay in ophthalmic surgery.Type: GrantFiled: February 21, 2002Date of Patent: June 13, 2006Inventor: Timothy Charles Hughes
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Patent number: 6835204Abstract: An intraocular lens with an optical lens part, which has a central lens area and at least one further annular lens area surrounding the central lens area, the central lens area and the at least one annular lens area forming at least one common focus and the annular lens area having concentric annular zones, in which the difference in pathlength between adjacent zones is an integral multiple of n=2 or more of the design wavelength.Type: GrantFiled: March 27, 2002Date of Patent: December 28, 2004Assignee: Acri.Tec Gesellschaft fur Ophtalmologische Produkte mbHInventors: Wilhelm Stork, Christine F. Kreiner
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Patent number: 6797003Abstract: An aspheric soft intraocular lens, having an optical power surface, which may have multiple radii portions or aspherical portions, as well as spherical portions, intended to replace the crystalline lens of a patient's eye, in particular after a cataract extraction. Such an aspheric soft lens is molded in a coined mold. A pair of core pins, positioned within the mold cavity during the lens forming process, will produce a pair of haptic-mounting holes within the lens. As the lenses are subsequently tumbled to remove flash, indentations will form adjacent to the haptic-mounting holes. These indentations allow for tangential attachment of the haptic to the lens which, in turn, enables maximum flexibility without exceeding the width of the optic.Type: GrantFiled: December 1, 1993Date of Patent: September 28, 2004Assignee: Pharmacia & Upjohn CompanyInventors: Larry W. Blake, Lee T. Nordan
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Patent number: 6485515Abstract: The device comprises a prosthesis designed as a hollow body compressed against the action of restoring spring forces to a cross section reduced relative to an expanded use position, and held in this position by a strippable sheath. After the sheath is stripped, the prosthesis automatically expands to a cross section corresponding to the use position. The sheath, which can be a meshwork in the approximate form of crocheted material, extends over the entire length of the prosthesis and consists of at least one continuous thread and at least one drawstring. The prosthesis, held in the radially compressed position by the sheath, can be mounted displacebly on a feed wire or non-axially-displacebly on the insertion end of a probe or a catheter.Type: GrantFiled: June 19, 2001Date of Patent: November 26, 2002Assignee: Boston Scientific CorporationInventor: Ernst Peter Strecker
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Publication number: 20010051826Abstract: The present invention relates to an intraocular correction lens for implantation in the posterior chamber of the eye between the iris and the intact natural lens. The lens has a concave posterior surface which is part of a non-spherical surface that is rotation symmetric around the optical axis of said optical part, wherein the intersection between said non-spherical surface and any plane containing the optical axis of the lens represents a flawless curve free from discontinuities and points of inflection. The invention also relates to methods of selecting correction lenses based on estimations of the individual eye in need of vision correction and thereby arriving with a correction lens with a high safety for wearer with respect to surrounding eye tissues.Type: ApplicationFiled: February 6, 2001Publication date: December 13, 2001Inventors: Theo T. M. Bogaert, Sieger T. Meijer
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Publication number: 20010014824Abstract: A method of selecting an intraocular lens material for toric lenses is disclosed. The method comprises determining the tack of the material.Type: ApplicationFiled: January 16, 2001Publication date: August 16, 2001Inventors: Charles Freeman, Mutlu Karakelle, Michael J. Simpson
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Publication number: 20010003162Abstract: A method of selecting an intraocular lens material for toric lenses is disclosed. The method comprises determining the material's Collagen IV Index.Type: ApplicationFiled: January 16, 2001Publication date: June 7, 2001Inventors: Kwan Chan, Mutlu Karakelle, Michael J. Simpson