Aspheric Lens Patents (Class 623/6.23)
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Patent number: 12127934Abstract: Methods of vision correction that include implanting a first lens and a second lens of a lens pair. The methods include implanting the first lens into a first eye of the subject, the first lens configured with first extended depth of field, and implanting the second lens into a second eye of the subject, the second lens configured with second extended depth of field, where the second eye is different than the first eye.Type: GrantFiled: March 13, 2020Date of Patent: October 29, 2024Assignee: STAAR Surgical CompanyInventors: Candido Dionisio Pinto, Constance Elizabeth Fay
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Patent number: 11766324Abstract: The present invention relates to an aspherical multifocal intraocular lens with large depth of field, the intraocular lens having an anterior optical surface and a posterior optical surface, wherein one optical surface is distributed with an aspherical surface which plays a role of expanding the depth of field, and the other optical surface is distributed with a multifocal structure which plays a role of providing two or more focal points. The aspherical surface provides a depth of field matching with an absolute value of a difference in refractive power of at least one pair of adjacent focal points of the two or more focal points provided by the multifocal structure. The aspherical surface, on the one hand, allows a continuous visual range between the focal points and, on the other hand, extends near vision in the direction of near focal point through the depth of field, thereby enabling continuous, uninterrupted full-range vision and adequate near vision.Type: GrantFiled: July 12, 2019Date of Patent: September 26, 2023Assignee: EYEBRIGHT MEDICAL TECHNOLOGY (BEIJING) CO., LTD.Inventors: Zhao Wang, Shuyan Guo, Jiangbing Xie
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Patent number: 11737919Abstract: An ocular implant is constructed of a clear, transparent, biologically compatible material and includes a hydrophilic outer surface configured for continuous attachment to a posterior surface of a cornea. The ocular implant has a first radius of curvature at initial attachment to the posterior surface of the cornea and a second radius of curvature at post-initial attachment to the posterior surface of the cornea. The first radius of curvature is different than the second radius of curvature. The ocular implant remains attached to the posterior surface of the cornea at both the first and second radii of curvature.Type: GrantFiled: June 17, 2021Date of Patent: August 29, 2023Assignee: EyeYon Medical Ltd.Inventors: Ofer Daphna, Dmitry Dubson, Nahum Ferera
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Patent number: 11660183Abstract: The present disclosure relates to devices, systems, and methods for improving or optimizing peripheral vision. In particular, methods are disclosed which include utilizing particular characteristics of the retina in improving or optimizing peripheral vision. Additionally, various IOL designs, as well as IOL implantation locations, are disclosed which improve or optimize peripheral vision.Type: GrantFiled: March 13, 2020Date of Patent: May 30, 2023Assignee: AMO Groningen B.V.Inventors: Robert Rosen, Hendrik A. Weeber, Carmen Canovas Vidal, Marrie H. Van Der Mooren, Mihai State, Patricia Ann Piers, Aixa Alarcon Heredia
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Patent number: 11529228Abstract: Methods for treating presbyopia in a patient's eye involve inducing spherical aberration in a central area of the pupil. In embodiments, refractive properties of an eye are measured to obtain a baseline refractive correction. A lens for wearing on the eye is provided, or an optical device is implanted in the eye, or corneal tissue is removed to create spherical aberration or a distribution of spherical aberrations beyond the baseline refractive correction in the central area of the pupil. The central area of the pupil has a diameter of between 1.5 mm and 4.0 mm and has negligible spherical aberration without the treatment.Type: GrantFiled: April 29, 2020Date of Patent: December 20, 2022Inventor: Junzhong Liang
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Patent number: 11517423Abstract: Systems and methods are provided for improving overall vision in patients suffering from a loss of vision in a portion of the retina (e.g., loss of central vision) by providing a piggyback lens which in combination with the cornea and an existing lens in the patient's eye redirects and/or focuses light incident on the eye at oblique angles onto a peripheral retinal location. The piggyback lens can include a redirection element (e.g., a prism, a diffractive element, or an optical component with a decentered GRIN profile) configured to direct incident light along a deflected optical axis and to focus an image at a location on the peripheral retina. Optical properties of the piggyback lens can be configured to improve or reduce peripheral errors at the location on the peripheral retina.Type: GrantFiled: November 26, 2018Date of Patent: December 6, 2022Assignee: AMO Groningen B.V.Inventors: Robert Rosen, Hendrik A. Weeber, Carmen Canovas Vidal, Marrie Van Der Mooren, Dora Sellitri, Patricia Ann Piers
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Patent number: 11331181Abstract: Systems and methods are provided for improving overall vision in patients suffering from a loss of vision in a portion of the retina (e.g., loss of central vision) by providing a piggyback lens which in combination with the cornea and an existing lens in the patient's eye redirects and/or focuses light incident on the eye at oblique angles onto a peripheral retinal location. The piggyback lens can include a redirection element (e.g., a prism, a diffractive element, or an optical component with a decentered GRIN profile) configured to direct incident light along a deflected optical axis and to focus an image at a location on the peripheral retina. Optical properties of the piggyback lens can be configured to improve or reduce optical errors at the location on the peripheral retina.Type: GrantFiled: December 3, 2018Date of Patent: May 17, 2022Assignee: AMO Groningen B.V.Inventors: Robert Rosen, Hendrik A. Weeber, Carmen Canovas Vidal, Marrie Van Der Mooren, Dora Sellitri, Patricia Ann Piers
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Patent number: 11191636Abstract: An eye-implantable electrowetting lens can be operated to control an overall optical power of an eye in which the device is implanted. A lens chamber of the electrowetting lens contains first and second fluids that are immiscible with each other and have different refractive indexes. By applying a voltage to electrodes of the lens, the optical power of the lens can be controlled by affecting the geometry of the interface between the fluids. To prevent fouling the surface due to folding or other manipulation of the lens during the insertion process, one or more surfaces within the lens chamber is highly underwater oleophobic.Type: GrantFiled: August 21, 2018Date of Patent: December 7, 2021Assignee: Verily Life Sciences LLCInventors: Stein Kuiper, Daniel Otts
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Patent number: 11129709Abstract: An accommodating intraocular lens assembly can include first stanchions, a forward optic, second stanchions, an intermediate member, third stanchions, fourth stanchions, and an aft optic. Each stanchion can extend between a base end and a distal end. The forward optic can be connected with the distal ends of the first stanchions. The intermediate member can be connected with the distal ends of the second stanchions and of the third stanchions. The aft optic can be connected with the distal ends of the fourth stanchions.Type: GrantFiled: January 27, 2020Date of Patent: September 28, 2021Inventor: Jitander Dudee
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Patent number: 10456242Abstract: Systems and methods are provided for improving overall vision in patients suffering from a loss of vision in a portion of the retina (e.g., loss of central vision) by providing symmetric or asymmetric optic with aspheric surface which redirects and/or focuses light incident on the eye at oblique angles onto a peripheral retinal location. The intraocular lens can include a redirection element (e.g., a prism, a diffractive element, or an optical component with a decentered GRIN profile) configured to direct incident light along a deflected optical axis and to focus an image at a location on the peripheral retina. Optical properties of the intraocular lens can be configured to improve or reduce peripheral errors at the location on the peripheral retina.Type: GrantFiled: January 15, 2018Date of Patent: October 29, 2019Assignee: AMO Groningen B.V.Inventors: Robert Rosen, Hendrik A. Weeber, Carmen Canovas Vidal, Marrie Van Der Mooren, Dora Sellitri
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Patent number: 10117572Abstract: A method of determining at least one selection parameter for selecting an intraocular lens to be inserted into an eye; the method comprises reading, by a data processing system, data indicative of an axial position of at least a portion of an anterior surface of an at least partially empty capsular bag of the eye, relative to an optical axis of the eye. The method further comprises determining an axial position parameter, which is representative of the axial position of the portion of the anterior surface, depending on the data. The method further comprises determining the at least one selection parameter for selecting the intraocular lens depending on the determined position parameter.Type: GrantFiled: April 26, 2013Date of Patent: November 6, 2018Assignee: CARL ZEISS MEDITEC AGInventors: Marco Wilzbach, Christoph Hauger, Markus Seesselberg, Xing Wei, Holger Matz, Anja Seiwert, Oliver Findl, Nino Hirnschall
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Patent number: 9939558Abstract: A method for modifying the refractive index of an optical polymeric material. The method comprises continuously irradiating predetermined regions of an optical, polymeric material with femtosecond laser pulses to form a gradient index refractive structure within the material. The optical polymeric material can include a photosensitizer to increase the photoefficiency of the two-photo process resulting in the formation of the observed refractive structures. An optical device includes an optical, polymeric lens material having an anterior surface and posterior surface and an optical axis intersecting the surfaces and at least one laser-modified, GRIN layer disposed between the anterior surface and the posterior surface and arranged along a first axis 45° to 90° to the optical axis.Type: GrantFiled: September 9, 2015Date of Patent: April 10, 2018Assignee: University of RochesterInventors: Wayne H. Knox, Dharmendra Jani, Li Ding
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Patent number: 9925041Abstract: An eye lens including an optical part, which has a first optical side and an opposite second optical side with respect to a direction of an optical principal axis (A) of the eye lens, wherein a toric refractive surface profile is formed on at least one of the two sides, wherein the eye lens has a surface structure that is stepped in a radial direction of the optical part in addition to the toric refractive surface profile, and the stepped surface structure is formed on at least one side.Type: GrantFiled: February 16, 2016Date of Patent: March 27, 2018Assignee: Carl Zeiss Meditec AGInventor: Mario Gerlach
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Patent number: 9855136Abstract: The present invention relates to a posterior chamber intraocular lens (IOL), comprising: an optic consisting of an effective optical area and an effective optical area edge; at least two haptics connected to the optic, wherein a posterior surface of the effective optical area is a convex surface, and a basic spherical surface thereof has a radius of curvature in a range of 6.6 mm-80.0 mm.Type: GrantFiled: January 18, 2013Date of Patent: January 2, 2018Assignee: EYEBRIGHT MEDICAL TECHNOLOGY (BEIJING) CO., LTD.Inventor: Zhao Wang
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Patent number: 9744027Abstract: The present invention relates to an intraocular lens, in particular a ciliary intraocular lens having at least one optic and one haptic element.Type: GrantFiled: August 21, 2013Date of Patent: August 29, 2017Assignee: Biolnic UGInventor: Josef Jansen
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Patent number: 9320594Abstract: A diffractive multifocal lens is disclosed, comprising an optical element having at least one diffractive surface, the surface profile comprising a plurality of annular concentric zones. The optical thickness of the surface profile changes monotonically with radius within each zone, while a distinct step in optical thickness at the junction between adjacent zones defines a step height. The step heights for respective zones may differ from one zone to another periodically so as to tailor diffraction order efficiencies of the optical element. In one example of a trifocal lens, step heights alternate between two values, the even-numbered step heights being lower than the odd-numbered step heights.Type: GrantFiled: February 12, 2010Date of Patent: April 26, 2016Assignee: The Arizona Board of Regents on Behalf of the University of ArizonaInventor: James T. Schwiegerling
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Patent number: 9186242Abstract: A system/method allowing hydrophilicity alteration of a polymeric material (PM) is disclosed. The PM hydrophilicity alteration changes the PM characteristics by decreasing the PM refractive index, increasing the PM electrical conductivity, and increasing the PM weight. The system/method incorporates a laser radiation source that generates tightly focused laser pulses within a three-dimensional portion of the PM to affect these changes in PM properties. The system/method may be applied to the formation of customized intraocular lenses comprising material (PLM) wherein the lens created using the system/method is surgically positioned within the eye of the patient. The implanted lens refractive index may then be optionally altered in situ with laser pulses to change the optical properties of the implanted lens and thus achieve optimal corrected patient vision. This system/method permits numerous in situ modifications of an implanted lens as the patient's vision changes with age.Type: GrantFiled: May 12, 2014Date of Patent: November 17, 2015Assignee: PERFECT IP, LLCInventors: Ruth Sahler, Stephen Q. Zhou, Josef F. Bille
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Patent number: 9144375Abstract: For the pre-operative calculation of the power of an intraocular lens, three input parameters are needed: the axial length of the eye (AL), the refractive power of the cornea, and the distance between the front of the cornea and the back focal plane of the intraocular lens, the so-called effective lens position (ELP). The invention shows a novel approach to the determination of the ELP.Type: GrantFiled: December 3, 2009Date of Patent: September 29, 2015Assignee: Carl Zeiss Meditec AGInventors: Rudolf Murai Von Bünau, Burkhart Wagner, Scott A. Meyer, Xunchang Chen
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Patent number: 9107746Abstract: A system/method allowing hydrophilicity alteration of a polymeric material (PM) is disclosed. The PM hydrophilicity alteration changes the PM characteristics by decreasing the PM refractive index, increasing the PM electrical conductivity, and increasing the PM weight. The system/method incorporates a laser radiation source that generates tightly focused laser pulses within a three-dimensional portion of the PM to affect these changes in PM properties. The system/method may be applied to the formation of customized intraocular lenses comprising material (PLM) wherein the lens created using the system/method is surgically positioned within the eye of the patient. The implanted lens refractive index may then be optionally altered in situ with laser pulses to change the optical properties of the implanted lens and thus achieve optimal corrected patient vision. This system/method permits numerous in situ modifications of an implanted lens as the patient's vision changes with age.Type: GrantFiled: May 12, 2014Date of Patent: August 18, 2015Assignee: PERFECT IP, LLCInventors: Ruth Sahler, Stephen Q. Zhou, Josef F. Bille
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Patent number: 8894706Abstract: An intraocular lens for implantation into a human eye is described. The lens has at least one aspheric surface configured with non-prolate profile to maintain lens optical advantage as compared with equivalent power spherical lens within realistic clinical condition of lens tilt and decentration.Type: GrantFiled: March 31, 2009Date of Patent: November 25, 2014Assignee: Aaren Scientific Inc.Inventor: Valdemar Portney
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Publication number: 20140330375Abstract: An accommodating (re-focusable) intraocular lens (IOL) a body of which includes, upon being assembled, first and second individual lenslets having first and second optical portions sequentially disposed along an optical axis and respective haptic portions, interlocked as a result of rotating of one lenslet with respect to another such as to bring first and second lenslets in contact at an axial point. Change in accommodation of the IOL is achieved by changing an applanated area of contact between the lenslets in response to a radially-directed force caused by a change of distance between the interlocked ends of the haptics and transferred to the optical portions through the interlocked haptics. When installed in a natural lens capsule after the cataract extraction, the optical power of the IOL is gradually modifiable due to a change of curvature of the capsule caused by operation of a ciliary muscle.Type: ApplicationFiled: July 17, 2014Publication date: November 6, 2014Inventor: Sean J. McCafferty
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Patent number: 8858627Abstract: An accommodative intraocular lens having a soft deformable resilient inner lens portion or core with an exposed anterior inner optic surface and exposed posterior optic surface, the surfaces responsively becoming simultaneously optically steeper and moving axially away from each other. The exposed anterior and posterior surfaces of the inner lens portions may be spherically shaped or aspherically shaped and the shape of the outer lens portion may be spherically or aspherically shaped.Type: GrantFiled: September 10, 2009Date of Patent: October 14, 2014Inventor: Richard L. Lindstrom
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Publication number: 20140303725Abstract: Methods and apparatus involving extended depth of focus IOLs.Type: ApplicationFiled: August 3, 2012Publication date: October 9, 2014Inventors: Graham Barrett, Tjundewo Lawu
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Patent number: 8801781Abstract: When fitting a patient for an intraocular lens, a series of measurements is taken on the patient's eye that determines a required lens power. Next, a range of preferred shape factors may be found, which determine the base (i.e., spherical) radii of the two lens surfaces, essentially independent of the lens power. The preferred shape factor adjusts the third-order coma of the lens to largely offset the coma of the cornea, so that the image at the retina has a reduced amount of third-order coma. Once a preferred shape factor is determined, the base radii of curvature of the anterior and posterior surfaces are determined from the shape factor and the lens power by algebraic formulas. Finally, one or more aspheric terms are added to one or both of the surfaces in the lens, so that the spherical aberration of the lens largely offsets the spherical aberration of the cornea.Type: GrantFiled: October 26, 2005Date of Patent: August 12, 2014Assignee: Abbott Medical Optics Inc.Inventors: Juan Tabernero, Pablo Artal, Patricia Piers
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Patent number: 8764822Abstract: A method for calculating the required power of a toric implant by using both the measured pre-operative corneal astigmatism and the predicted surgically-induced post-operative astigmatism. The surgically-induced post-operative astigmatism is predicted using power vector analysis of the surgical technique employed by the surgeon. Such a method provides a more accurate method of calculating the required post-operative refractive power of the implant. The method can be implemented manually, but preferably is automated by implementation on a computer through appropriate software.Type: GrantFiled: December 4, 2008Date of Patent: July 1, 2014Assignee: Novartis AGInventors: Blake Harris, James Hoffman, Xin Hong, Xiaoxiao Zhang, Warren E. Hill
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Publication number: 20140121767Abstract: A method and system provide an ophthalmic device and treat a patient using the ophthalmic device. The ophthalmic device includes an ophthalmic lens having an anterior surface, a posterior surface and an optic axis. At least one of the anterior surface and the posterior surface is an aspheric surface. The aspheric surface has a toricity configured to spread retroreflected light incident in a plurality of directions canted from the optic axis. In one aspect, the method includes selecting the ophthalmic device for implantation in an eye of the patient and implanting the ophthalmic device in the patient's eye.Type: ApplicationFiled: September 24, 2013Publication date: May 1, 2014Applicant: NOVARTIS AGInventor: MICHAEL J. SIMPSON
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Patent number: 8668333Abstract: An ophthalmic toric lens to be worn on an eye or implanted inside of an eye, the lens includes an anterior surface, a posterior surface, and a toric shape formed into one of the anterior and posterior surfaces, the toric shape comprising two non-spherical principle meridians each having a region within an annular area of optical zone and the region of one principle meridian being configured for producing a longitudinal ray aberration of a different sign than a longitudinal ray aberration sign from the region of another principle meridian.Type: GrantFiled: December 6, 2011Date of Patent: March 11, 2014Inventor: Valdemar Portney
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Publication number: 20140046440Abstract: The present invention discloses methods of obtaining ophthalmic lens capable of reducing the aberrations of the eye comprising the steps of characterizing at least one corneal surface as a mathematical model, calculating the resulting aberrations of said corneal surface(s) by employing said mathematical model, selecting the optical power of the intraocular lens. From this information, an ophthalmic lens is modeled so a wavefront arriving from an optical system comprising said lens and corneal model obtains reduced aberrations in the eye. Also disclosed are ophthalmic lenses as obtained by the methods which are capable reducing aberrations of the eye.Type: ApplicationFiled: October 14, 2013Publication date: February 13, 2014Inventors: Sverker Norrby, Pablo Artal, Patricia Ann Piers, Marrie Van Der Mooren
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Patent number: 8603165Abstract: 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: GrantFiled: September 21, 2007Date of Patent: December 10, 2013Inventor: Kyong Jin Park
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Patent number: 8603166Abstract: Disclosed is an intraocular lens assembly provided inside a capsular sac. The intraocular lens assembly according to one embodiment of the present invention includes an intraocular lens and an intraocular lens supporter, and therefore the intraocular lens assembly may be useful to transfer a force to the intraocular lens, inserted inwardly into the capsular sac, to allow the intraocular lens to move like a natural eye lens, the force being generated from the ciliaris muscle and transferred through the zonule of Zinn and the capsular sac.Type: GrantFiled: September 21, 2007Date of Patent: December 10, 2013Inventor: Kyong Jin Park
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Patent number: 8551164Abstract: A refractive intraocular lens (104) and method of locating the lens within the eye and attaching the lens to the iris. The refractive intraocular lens (104) may be attached via a staple (230), a fastener (312), anchor (412) or by the tip of the haptic (118). The intraocular lens (104) works in combination with the human crystalline lens to treat conditions selected from the group consisting of myopia, hyperopia and astigmatism.Type: GrantFiled: July 22, 2010Date of Patent: October 8, 2013Inventors: Timothy R. Willis, Lyle E. Paul, Joseph Collin
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Publication number: 20130261744Abstract: Implantable ophthalmic devices with aspheric lenses and dynamic electro-active elements offer excellent depth of field and image quality while providing high optical throughput. An exemplary implantable ophthalmic device includes an aspheric lens with a negative spherical aberration that varies with radius. The aspheric lens can have peak optical powers at its geometric centers surrounded by a region of varying optical power (with varying slope) that extends radially from its center. When implanted, these aspheric lenses provide an incremental optical power that varies as a function of pupil diameter, which changes with object distance, for viewing far, intermediate, and near objects. The aspheric lens may also bonded or integrally formed with a spherical lens that provides fixed optical power for viewing far objects and/or a dynamic electro-active element that with two or more states (e.g., on and off) for increasing the effective optical power when viewing near objects.Type: ApplicationFiled: May 31, 2011Publication date: October 3, 2013Applicant: Elenza, Inc.Inventors: Amitava Gupta, Nicholas Wooder, Ronald D. Blum, Rudy Mazzocchi, Urban Schnell
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Patent number: 8535376Abstract: In an embodiment, an aspheric IOL for use in a pseudophakic ocular system has no inherent spherical aberration. In an embodiment, an aspheric IOL for use in a pseudophakic ocular system has a controlled amount of inherent negative spherical aberration such that the IOL induces no spherical aberration in a converging wavefront from a cornea passing through the lens. An embodiment of the invention is directed to a family of aspheric IOLs made up of any two or more member aspheric IOLs each having different spherical aberration values and different lens shape factors. A lens constant, such as the well known A-constant, is kept constant throughout the family of lenses. An embodiment of the invention is directed to a multi-component accommodating intraocular lens (A-IOL). In a particular embodiment, the A-IOL introduces substantially no residual spherical aberration to a wavefront incident upon and passing through the A-IOL.Type: GrantFiled: October 28, 2010Date of Patent: September 17, 2013Assignee: Bausch & Lomb IncorporatedInventor: Griffith E. Altmann
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Patent number: 8465543Abstract: 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: GrantFiled: June 22, 2006Date of Patent: June 18, 2013Assignee: Carl Zeiss Meditec AGInventors: Werner Fiala, Christine Kreiner
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Patent number: 8425598Abstract: An implantable system for restoring accommodation capacity includes at least one ring configured to be implanted in a ciliary sulcus and a capacitor with a first capacitor plate and a second capacitor plate. The first capacitor plate is arranged on an implantable ring and the second capacitor plate is connected to a capsular bag.Type: GrantFiled: May 14, 2009Date of Patent: April 23, 2013Assignee: Karlsruher Institut fuer TechnologieInventors: Simon Klink, Georg Bretthauer, Rudolf Guthoff, Mark Bergemann
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Publication number: 20130060332Abstract: 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: October 31, 2012Publication date: March 7, 2013Applicant: Novartis AGInventor: Novartis AG
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Patent number: 8292952Abstract: A lens for placement in a human eye, such as intraocular lens, has at least some of its optical properties formed with a laser. The laser forms modified loci in the lens when the modified loci have a different refractive index than the refractive index of the material before modification. Different patterns of modified loci can provide selected dioptic power, toric adjustment, and/or aspheric adjustment provided. Preferably both the anterior and posterior surfaces of the lens are planar for ease of placement in the human eye.Type: GrantFiled: March 4, 2010Date of Patent: October 23, 2012Assignee: Aaren Scientific Inc.Inventor: Josef F. Bille
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Publication number: 20120262670Abstract: In one aspect, the present invention provides a method of designing an intraocular lens (IOL) to address variations of at least one ocular parameter in a population of patient eyes. The method can include establishing at least one eye model in which the ocular parameter can be varied over a range exhibited by the population. The eye model can be employed to evaluate a plurality of IOL designs in correcting visual acuity for eyes in the patient population. An IOL design that provides a best fit for visual performance over at least a portion of the parameter range can then be selected.Type: ApplicationFiled: June 22, 2012Publication date: October 18, 2012Inventors: Xin Hong, Mutlu Karakelle, Xiaoxiao Zhang
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Patent number: 8262727Abstract: In accordance with the present invention, a multifocal intraocular lens provides greater or lesser refraction in relation to the position of the head and eyes of a user. A multifocal intraocular lens body for insertion into a fluid-filled enucleated natural lens capsule of an eye is provided wherein the lens body encompasses the optical axis of the eye and provides different greater or lesser refraction depending upon the position of the eye.Type: GrantFiled: August 11, 2006Date of Patent: September 11, 2012Inventor: Marguerite B. McDonald
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Publication number: 20120158131Abstract: Aspheric optical lenses (e.g., intraocular lenses and contact lenses) are provided. The intraocular lens includes a body portion defining an anterior optical surface and an opposing posterior optical surface. The anterior optical surface includes a central region surrounded by a first outer region and a second outer region. The central region has a first asphericity profile. The first outer region has a second asphericity profile that is different than the first asphericity profile of the central region. The second outer region has a third asphericity profile that is different than the second asphericity profile of the first outer region. The overall asphericity profile of the optical lens provides different depths of focus for different pupil sizes. The result is an optical lens that provides increased depth of focus or pseudo-accommodation while maintaining desired optical power and performance.Type: ApplicationFiled: December 12, 2011Publication date: June 21, 2012Inventors: Robert Angelopoulos, Stephen J. Van Noy
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Patent number: 8167940Abstract: An aspheric toric intraocular lens (IOL) having toricity and asphericity in a single lens. The toricity and asphericity may be provided on separate surfaces, such as an anterior surface and a posterior surface, or the toricity and asphericity may be combined onto a single surface. The edge thickness may be varied sinusoidal to maintain equal edge thickness at 45 degree meridian.Type: GrantFiled: May 4, 2009Date of Patent: May 1, 2012Assignee: Novartis AGInventors: Xin Hong, James Hoffman, Jihong Xie, Michael Hamlin
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Patent number: 8142499Abstract: Devices, systems, and methods for treating and/or determining appropriate prescriptions for one or both eyes of a patient are particularly well-suited for addressing presbyopia, often in combination with concurrent treatments of other vision defects. High-order spherical aberration may be imposed in one or both of a patient's eyes, often as a controlled amount of negative spherical aberration extending across a pupil. A desired presbyopia-mitigating quantity of high-order spherical aberration may be defined by one or more spherical Zernike coefficients, which may be combined with Zernike coefficients generated from a wavefront aberrometer. The resulting prescription can be imposed using refractive surgical techniques such as laser eye surgery, using intraocular lenses and other implanted structures, using contact lenses, using temporary or permanent corneal reshaping techniques, and/or the like.Type: GrantFiled: September 9, 2008Date of Patent: March 27, 2012Assignee: AMO Manufacturing USA, LLC.Inventors: Seema Somani, Kingman Yee
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Patent number: 8066767Abstract: 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: GrantFiled: June 15, 2009Date of Patent: November 29, 2011Assignee: Acri.Tec GmbHInventors: Werner Fiala, Christine Kreiner
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Publication number: 20110098810Abstract: In an embodiment, an aspheric IOL for use in a pseudophakic ocular system has no inherent spherical aberration. In an embodiment, an aspheric IOL for use in a pseudophakic ocular system has a controlled amount of inherent negative spherical aberration such that the IOL induces no spherical aberration in a converging wavefront from a cornea passing through the lens. An embodiment of the invention is directed to a family of aspheric IOLs made up of any two or more member aspheric IOLs each having different spherical aberration values and different lens shape factors. A lens constant, such as the well known A-constant, is kept constant throughout the family of lenses. An embodiment of the invention is directed to a multi-component accommodating intraocular lens (A-IOL). In a particular embodiment, the A-IOL introduces substantially no residual spherical aberration to a wavefront incident upon and passing through the A-IOL.Type: ApplicationFiled: October 28, 2010Publication date: April 28, 2011Inventor: Griffith E. Altmann
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Patent number: 7905917Abstract: In an embodiment, an aspheric IOL for use in a pseudophakic ocular system has no inherent spherical aberration. An embodiment of the invention is directed to a family of aspheric IOLs in which a lens constant, such as the well known A-constant, is kept constant throughout the family of lenses. An embodiment of the invention is directed to a multi-component accommodating intraocular lens (A-IOL) having substantially no inherent spherical aberration. An embodiment of the invention is directed to a family of member A-IOLs where each member A-IOL has a first (1) surface and a fourth (4) surface characterized by a radius and a conic constant that remain substantially constant over the power rage of the A-IOL family.Type: GrantFiled: October 12, 2005Date of Patent: March 15, 2011Assignee: Bausch & Lomb IncorporatedInventor: Griffith E. Altmann
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Patent number: 7874672Abstract: “Universal improvement” of vision is achieved by effectively changing the shape of the anterior refracting surface of the cornea to an ideal “turtleback” shape, on which is imposed the necessary curvature adjustment to achieve correction of distance vision. In accordance with one embodiment, the cornea is actually formed to the turtleback shape through corneal surgery, preferably laser ablation surgery. In accordance with a second embodiment, a contact lens with the desired distance corrected ideal turtleback shape on its anterior surface is positioned over the cornea.Type: GrantFiled: August 29, 2008Date of Patent: January 25, 2011Assignee: Scientific Optics, Inc.Inventors: David M. Lieberman, Jonathan Grierson
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Publication number: 20100315589Abstract: An ophthalmic lens for placement on the human eye or implanted into an eye is described. The lens has a cylinder power for eye astigmatism refraction error correction and incorporates aspherization of at least one of the surfaces to reduce vision quality reduction with toric ophthalmic lens rotation that creates meridional misalignment as compared with the equivalent toric lens with non-aspherized surface.Type: ApplicationFiled: June 16, 2009Publication date: December 16, 2010Inventor: VALDEMAR PORTNEY
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Publication number: 20100234943Abstract: An intraocular lens for implantation into a human eye is described. The lens has at least one aspheric surface configured with non-prolate profile to maintain lens optical advantage as compared with equivalent power spherical lens within realistic clinical condition of lens tilt and decentration.Type: ApplicationFiled: March 31, 2009Publication date: September 16, 2010Inventor: VALDEMAR PORTNEY
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Publication number: 20100228345Abstract: A lens for placement in a human eye, such as intraocular lens, has at least some of its optical properties formed with a laser. The laser forms modified loci in the lens when the modified loci have a different refractive index than the refractive index of the material before modification. Different patterns of modified loci can provide selected dioptic power, toric adjustment, and/or aspheric adjustment provided. Preferably both the anterior and posterior surfaces of the lens are planar for ease of placement in the human eye.Type: ApplicationFiled: March 4, 2010Publication date: September 9, 2010Applicant: Aaren Scientific Inc.Inventor: Josef F. Bille
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Patent number: 7776086Abstract: A corneal implant having an aspheric surface for modifying the cornea curvature and altering the corneal refractive power. The corneal implant has a lens body formed of an optically clear bio-compatible material, preferably with an index of refraction substantially similar to that of human corneal tissue (1.376). The aspheric surface is comprised of a continuous aspheric surface from the apex of the implant to beveled surface. The beveled surface, positioned near the outer diameter of the implant, is used to reduce the thickness of the aspheric surface on the periphery of the lens to the outer diameter edge. The body of the implant has a diameter between about 2.0 mm and 7.0 mm and a thickness less than about 0.150 mm.Type: GrantFiled: April 30, 2004Date of Patent: August 17, 2010Assignee: ReVision Optics, Inc.Inventor: Troy Miller