Aspheric Lens Patents (Class 623/6.23)
  • Patent number: 10456242
    Abstract: 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: Grant
    Filed: January 15, 2018
    Date of Patent: October 29, 2019
    Assignee: AMO Groningen B.V.
    Inventors: Robert Rosen, Hendrik A. Weeber, Carmen Canovas Vidal, Marrie Van Der Mooren, Dora Sellitri
  • Patent number: 10117572
    Abstract: 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: Grant
    Filed: April 26, 2013
    Date of Patent: November 6, 2018
    Assignee: CARL ZEISS MEDITEC AG
    Inventors: Marco Wilzbach, Christoph Hauger, Markus Seesselberg, Xing Wei, Holger Matz, Anja Seiwert, Oliver Findl, Nino Hirnschall
  • Patent number: 9939558
    Abstract: 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: Grant
    Filed: September 9, 2015
    Date of Patent: April 10, 2018
    Assignee: University of Rochester
    Inventors: Wayne H. Knox, Dharmendra Jani, Li Ding
  • Patent number: 9925041
    Abstract: 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: Grant
    Filed: February 16, 2016
    Date of Patent: March 27, 2018
    Assignee: Carl Zeiss Meditec AG
    Inventor: Mario Gerlach
  • Patent number: 9855136
    Abstract: 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: Grant
    Filed: January 18, 2013
    Date of Patent: January 2, 2018
    Assignee: EYEBRIGHT MEDICAL TECHNOLOGY (BEIJING) CO., LTD.
    Inventor: Zhao Wang
  • Patent number: 9744027
    Abstract: The present invention relates to an intraocular lens, in particular a ciliary intraocular lens having at least one optic and one haptic element.
    Type: Grant
    Filed: August 21, 2013
    Date of Patent: August 29, 2017
    Assignee: Biolnic UG
    Inventor: Josef Jansen
  • Patent number: 9320594
    Abstract: 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: Grant
    Filed: February 12, 2010
    Date of Patent: April 26, 2016
    Assignee: The Arizona Board of Regents on Behalf of the University of Arizona
    Inventor: James T. Schwiegerling
  • Patent number: 9186242
    Abstract: 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: Grant
    Filed: May 12, 2014
    Date of Patent: November 17, 2015
    Assignee: PERFECT IP, LLC
    Inventors: Ruth Sahler, Stephen Q. Zhou, Josef F. Bille
  • Patent number: 9144375
    Abstract: 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: Grant
    Filed: December 3, 2009
    Date of Patent: September 29, 2015
    Assignee: Carl Zeiss Meditec AG
    Inventors: Rudolf Murai Von Bünau, Burkhart Wagner, Scott A. Meyer, Xunchang Chen
  • Patent number: 9107746
    Abstract: 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: Grant
    Filed: May 12, 2014
    Date of Patent: August 18, 2015
    Assignee: PERFECT IP, LLC
    Inventors: Ruth Sahler, Stephen Q. Zhou, Josef F. Bille
  • Patent number: 8894706
    Abstract: 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: Grant
    Filed: March 31, 2009
    Date of Patent: November 25, 2014
    Assignee: Aaren Scientific Inc.
    Inventor: Valdemar Portney
  • Publication number: 20140330375
    Abstract: 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: Application
    Filed: July 17, 2014
    Publication date: November 6, 2014
    Inventor: Sean J. McCafferty
  • Patent number: 8858627
    Abstract: 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: Grant
    Filed: September 10, 2009
    Date of Patent: October 14, 2014
    Inventor: Richard L. Lindstrom
  • Publication number: 20140303725
    Abstract: Methods and apparatus involving extended depth of focus IOLs.
    Type: Application
    Filed: August 3, 2012
    Publication date: October 9, 2014
    Inventors: Graham Barrett, Tjundewo Lawu
  • Patent number: 8801781
    Abstract: 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: Grant
    Filed: October 26, 2005
    Date of Patent: August 12, 2014
    Assignee: Abbott Medical Optics Inc.
    Inventors: Juan Tabernero, Pablo Artal, Patricia Piers
  • Patent number: 8764822
    Abstract: 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: Grant
    Filed: December 4, 2008
    Date of Patent: July 1, 2014
    Assignee: Novartis AG
    Inventors: Blake Harris, James Hoffman, Xin Hong, Xiaoxiao Zhang, Warren E. Hill
  • Publication number: 20140121767
    Abstract: 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: Application
    Filed: September 24, 2013
    Publication date: May 1, 2014
    Applicant: NOVARTIS AG
    Inventor: MICHAEL J. SIMPSON
  • Patent number: 8668333
    Abstract: 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: Grant
    Filed: December 6, 2011
    Date of Patent: March 11, 2014
    Inventor: Valdemar Portney
  • Publication number: 20140046440
    Abstract: 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: Application
    Filed: October 14, 2013
    Publication date: February 13, 2014
    Inventors: Sverker Norrby, Pablo Artal, Patricia Ann Piers, Marrie Van Der Mooren
  • Patent number: 8603166
    Abstract: 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: Grant
    Filed: September 21, 2007
    Date of Patent: December 10, 2013
    Inventor: Kyong Jin Park
  • Patent number: 8603165
    Abstract: 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: Grant
    Filed: September 21, 2007
    Date of Patent: December 10, 2013
    Inventor: Kyong Jin Park
  • Patent number: 8551164
    Abstract: 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: Grant
    Filed: July 22, 2010
    Date of Patent: October 8, 2013
    Inventors: Timothy R. Willis, Lyle E. Paul, Joseph Collin
  • Publication number: 20130261744
    Abstract: 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: Application
    Filed: May 31, 2011
    Publication date: October 3, 2013
    Applicant: Elenza, Inc.
    Inventors: Amitava Gupta, Nicholas Wooder, Ronald D. Blum, Rudy Mazzocchi, Urban Schnell
  • Patent number: 8535376
    Abstract: 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: Grant
    Filed: October 28, 2010
    Date of Patent: September 17, 2013
    Assignee: Bausch & Lomb Incorporated
    Inventor: Griffith E. Altmann
  • Patent number: 8465543
    Abstract: 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: Grant
    Filed: June 22, 2006
    Date of Patent: June 18, 2013
    Assignee: Carl Zeiss Meditec AG
    Inventors: Werner Fiala, Christine Kreiner
  • Patent number: 8425598
    Abstract: 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: Grant
    Filed: May 14, 2009
    Date of Patent: April 23, 2013
    Assignee: Karlsruher Institut fuer Technologie
    Inventors: Simon Klink, Georg Bretthauer, Rudolf Guthoff, Mark Bergemann
  • Publication number: 20130060332
    Abstract: 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: Application
    Filed: October 31, 2012
    Publication date: March 7, 2013
    Applicant: Novartis AG
    Inventor: Novartis AG
  • Patent number: 8292952
    Abstract: 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: Grant
    Filed: March 4, 2010
    Date of Patent: October 23, 2012
    Assignee: Aaren Scientific Inc.
    Inventor: Josef F. Bille
  • Publication number: 20120262670
    Abstract: 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: Application
    Filed: June 22, 2012
    Publication date: October 18, 2012
    Inventors: Xin Hong, Mutlu Karakelle, Xiaoxiao Zhang
  • Patent number: 8262727
    Abstract: 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: Grant
    Filed: August 11, 2006
    Date of Patent: September 11, 2012
    Inventor: Marguerite B. McDonald
  • Publication number: 20120158131
    Abstract: 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: Application
    Filed: December 12, 2011
    Publication date: June 21, 2012
    Inventors: Robert Angelopoulos, Stephen J. Van Noy
  • Patent number: 8167940
    Abstract: 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: Grant
    Filed: May 4, 2009
    Date of Patent: May 1, 2012
    Assignee: Novartis AG
    Inventors: Xin Hong, James Hoffman, Jihong Xie, Michael Hamlin
  • Patent number: 8142499
    Abstract: 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: Grant
    Filed: September 9, 2008
    Date of Patent: March 27, 2012
    Assignee: AMO Manufacturing USA, LLC.
    Inventors: Seema Somani, Kingman Yee
  • Patent number: 8066767
    Abstract: 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: Grant
    Filed: June 15, 2009
    Date of Patent: November 29, 2011
    Assignee: Acri.Tec GmbH
    Inventors: Werner Fiala, Christine Kreiner
  • Publication number: 20110098810
    Abstract: 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: Application
    Filed: October 28, 2010
    Publication date: April 28, 2011
    Inventor: Griffith E. Altmann
  • Patent number: 7905917
    Abstract: 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: Grant
    Filed: October 12, 2005
    Date of Patent: March 15, 2011
    Assignee: Bausch & Lomb Incorporated
    Inventor: Griffith E. Altmann
  • Patent number: 7874672
    Abstract: “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: Grant
    Filed: August 29, 2008
    Date of Patent: January 25, 2011
    Assignee: Scientific Optics, Inc.
    Inventors: David M. Lieberman, Jonathan Grierson
  • Publication number: 20100315589
    Abstract: 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: Application
    Filed: June 16, 2009
    Publication date: December 16, 2010
    Inventor: VALDEMAR PORTNEY
  • Publication number: 20100234943
    Abstract: 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: Application
    Filed: March 31, 2009
    Publication date: September 16, 2010
    Inventor: VALDEMAR PORTNEY
  • Publication number: 20100228345
    Abstract: 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: Application
    Filed: March 4, 2010
    Publication date: September 9, 2010
    Applicant: Aaren Scientific Inc.
    Inventor: Josef F. Bille
  • Patent number: 7776086
    Abstract: 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: Grant
    Filed: April 30, 2004
    Date of Patent: August 17, 2010
    Assignee: ReVision Optics, Inc.
    Inventor: Troy Miller
  • Publication number: 20100131059
    Abstract: An intraocular lens optic (e.g. FIG. 1) having a maximum thickness of 500 microns (3) and a diameter of 6 millimeters, with concentric rings on the anterior surface of the lens. The lens, coupled with suitable haptic designs, is to be implanted within the lens capsule (19) of the eye after surgical removal of the natural crystalline lens. The anterior surface of the lens (1) has concentric rings (6) with steps of approximately 10 microns (5) that can be concave, convex or piano, with the edge of the step parallel in each case to the light rays traversing the lens at that point. The posterior surface of the lens (3) is aspherical and smooth. The concentric rings focus 95% or better of light at a specific target point on the retina, thus making a monofocal lens, with focal flexibility provided through haptic design providing movement of the lens forward in the posterior chamber in response to contraction and expansion of the ciliary body and concomitant repositioning of the zonules.
    Type: Application
    Filed: November 25, 2009
    Publication date: May 27, 2010
    Inventors: Wayne B. Callahan, Paul S. Koch, Anna S. Hayes, Robert E. Kellan
  • Publication number: 20100063588
    Abstract: 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: Application
    Filed: September 21, 2007
    Publication date: March 11, 2010
    Inventor: Kyong Jin Park
  • Patent number: 7637947
    Abstract: 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: Grant
    Filed: December 27, 2006
    Date of Patent: December 29, 2009
    Assignee: PowerVision, Inc.
    Inventors: David John Smith, Terah Whiting Smiley, John A. Scholl, Denise Horrilleno Burns, Victor Esch
  • Publication number: 20090270983
    Abstract: 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: Application
    Filed: June 15, 2009
    Publication date: October 29, 2009
    Applicant: Acri. Tec Gesellschaft Fuer
    Inventors: Werner Fiala, Christine Kreiner
  • Publication number: 20090204208
    Abstract: 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: Application
    Filed: April 16, 2009
    Publication date: August 13, 2009
    Inventor: Michael J. Simpson
  • Publication number: 20090164008
    Abstract: 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: Application
    Filed: December 21, 2007
    Publication date: June 25, 2009
    Inventors: Xin Hong, Drew Morgan
  • Publication number: 20090132041
    Abstract: 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: Application
    Filed: June 22, 2006
    Publication date: May 21, 2009
    Applicant: ARC.TEC AG Gesellschaft Fur Ophthalmologische Produkte
    Inventors: Werner Fiala, Christine Kreiner
  • Publication number: 20090125105
    Abstract: 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: Application
    Filed: November 4, 2008
    Publication date: May 14, 2009
    Inventors: Cedric Lesage, Mario Gerlach
  • Publication number: 20090059163
    Abstract: 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: Application
    Filed: August 20, 2008
    Publication date: March 5, 2009
    Inventor: Candido D. Pinto