Prismatic Lens Patents (Class 623/6.26)
  • Patent number: 9999498
    Abstract: The invention provides an intra ocular lens structure (IOL) for placement in the capsular bag and securing the IOL in an opening in an anterior part of a capsular bag, with an anterior capsular bag flap surrounding said opening, said IOL having an anterior side which in use when the IOL is implanted in an eye is directed towards a cornea of the eye, and a posterior side which in use when the IOL is implanted in an eye is directed towards a retina of the eye, said IOL comprising an optical structure, at least two posterior supports for when the IOL is implanted in the capsular bag residing in the capsular bag extending away from said optical structure, said posterior supports adapted for in use providing support surfaces for a posterior surface of an anterior capsular bag flap, and at least two anterior supports for when the IOL is implanted in the capsular bag residing outside the capsular bag extending away from said optical structure, said anterior supports adapted for in use providing support surfaces for
    Type: Grant
    Filed: July 28, 2014
    Date of Patent: June 19, 2018
    Assignee: OCULENTIS HOLDING B.V.
    Inventor: Bernardus Franciscus Maria Wanders
  • Patent number: 9636215
    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 an enhanced toric lens 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. One or more surfaces of the intraocular lens can be a toric surface, a higher order aspheric surface, an aspheric Zernike surface or a Biconic Zernike surface to reduce optical errors in an image produced at a peripheral retinal location by light incident at oblique angles.
    Type: Grant
    Filed: March 10, 2015
    Date of Patent: May 2, 2017
    Assignee: AMO GRONINGEN B.V.
    Inventors: Robert Rosen, Hendrik A Weeber, Carmen Canovas Vidal, Marrie Van Der Mooren, Dora Sellitri
  • Patent number: 9579192
    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 a dual optic intraocular lens 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. One or more surfaces of the intraocular lens can be a toric surface, a higher order aspheric surface, an aspheric Zernike surface or a Biconic Zernike surface to reduce optical errors in an image produced at a peripheral retinal location by light incident at oblique angles.
    Type: Grant
    Filed: March 10, 2015
    Date of Patent: February 28, 2017
    Assignee: AMO Groningen B.V.
    Inventors: Robert Rosen, Hendrik A Weeber, Carmen Canovas Vidal, Marrie Van Der Mooren, Dora Sellitri, Patricia Ann Piers
  • Patent number: 9345570
    Abstract: A wide-angle optical unit for ophthalmological implants in the eye includes a lens system arranged in a rotationally symmetrical manner about an optical axis and further includes at least two lenses that rest one on top of the other in a planar manner and which are made of materials having different optical refractive indices. In addition, the wide-angle optical unit includes an optical decoupling structure and a trailing lens arranged proximally with respect to the interior of the eye. The trailing lens is mounted around the optical decoupling structure.
    Type: Grant
    Filed: July 18, 2013
    Date of Patent: May 24, 2016
    Assignee: KARLSRUHER INSTITUT FUER TECHNOLOGIE
    Inventors: Ingo Sieber, Helmut Guth, Georg Bretthauer, Ulrich Gengenbach, Rudolf F. Guthoff
  • Patent number: 9162061
    Abstract: This invention concerns a vision enhancement apparatus that improves vision for a vision-impaired user of interface equipment. Interface equipment stimulates the user's cortex, directly or indirectly, to provide artificial vision. It may include a passive sensor to acquire real-time high resolution video data representing the vicinity of the user. A sight processor to receive the acquired high resolution data and automatically: Analyze the high resolution data to extract depth of field information concerning objects of interest. Extract lower resolution data representing the vicinity of the user. And, provide both the depth of field information concerning objects of interest and the lower resolution data representing the vicinity of the user to the interface equipment to stimulate artificial vision for the user.
    Type: Grant
    Filed: October 7, 2010
    Date of Patent: October 20, 2015
    Assignee: NATIONAL ICT AUSTRALIA LIMITED
    Inventor: Nick Barnes
  • Patent number: 9071742
    Abstract: Selected described embodiments include an imager providing concurrent wide field of view (WFOV) and foveated images. The imager includes a frontend optic configured to receive light from a scene. Corrective optics reduces distortions, and transmits the light to a beam splitter. One portion of the light exiting the beam splitter is focused on a WFOV image detector. A second portion of the light falls on a scanning mirror that can be configured to target a selected field position in the field of view. From the scanning mirror, the light passes through a magnifier and is corrected by an adaptive wavefront corrector. The corrector may be configured to correct aberrations corresponding to the particular field of view selected by the scanning mirror. The light from the wavefront corrector is focused on a foveated image detector. The images captured by the image detectors may be stored, processed, and transmitted to other systems.
    Type: Grant
    Filed: July 6, 2012
    Date of Patent: June 30, 2015
    Assignee: ZIVA CORPORATION
    Inventors: Aaron L. Birkbeck, Anis Husain, Eliseo Ranalli
  • Publication number: 20120277857
    Abstract: An intraocular lens is described which comprises, as one face thereof, a linear Fresnel prism array with facets angled relative to the optical axis of the lens so as to deviate light incident thereon to an off-axis position. The facets are modified so as to reduce at least one of diffraction effects and astigmatism associated with the Fresnel prism. In particular, by varying the pitch of the prism elements across the array, which may comprise varying their size, a diffraction grating effect can be reduced or negated, such that light is not diffracted into undesirable orders and multiple images can be avoided. Furthermore, chromatic angular dispersion associated with the diffraction grating effect may be reduced. The pitch variation can be random. By varying the angle of the facets across the array, astigmatism that would otherwise result from the presence of the Fresnel prism can also be compensated.
    Type: Application
    Filed: November 23, 2010
    Publication date: November 1, 2012
    Applicant: RAYNER INTRAOCULAR LENSES LIMITED
    Inventors: Daniel Purchase, Peter Toop
  • Patent number: 8287124
    Abstract: The invention generally relates to a lens and the method of manufacturing progressive addition lenses (PAL) to remove unwanted base out prism and minimize excessive convergence, comprising determining basic configuration of two major lens surfaces to provide a distance portion and near portion, wherein diopter power increases from the distance portion of the lens to the near portion; selecting an amount of prism reduction; and reducing base out prism that inherently occurs as diopter power increases by altering the configuration of the lens as a function of the amount of prism reduction to minimize any disruption of optical properties a lens while decreasing base out prism.
    Type: Grant
    Filed: August 22, 2011
    Date of Patent: October 16, 2012
    Assignee: Crossbows Optical Limited
    Inventors: Jeffrey P. Krall, Hugh McLoughlin, Trevor Steele, Andrew Whale
  • Patent number: 8206442
    Abstract: The invention concerns an intraocular lens device which is used in particular for treatment of diseases of the central retina (macula) with retinal areas which are still healthy. The main principle of the invention at hand is that a lens device is provided for the redirection of the focal point from an area with impaired retinal function to a functioning area which comprises at least one convex lens element and several wedge-shaped recesses. Surprisingly it was found that a considerable reduction of the thickness of the lens device is thus achievable when several wedge-shaped recesses are provided.
    Type: Grant
    Filed: October 19, 2004
    Date of Patent: June 26, 2012
    Assignee: Philipps-Universität Marburg
    Inventors: Saadettin Sel, Jörg Heber
  • Patent number: 8137399
    Abstract: An intraocular device including a prism and shift amplifier is provided. Also provided is a system containing the intraocular device, and a method for improving vision of a person with central vision loss. The method involves implanting the intraocular device in the person so that the prism and shift amplifier cumulatively shift a retinal image away from the fovea of an eye to a functional retinal portion of the eye. Also provided is a method for correcting a binocular misalignment of a person using the intraocular device.
    Type: Grant
    Filed: April 11, 2005
    Date of Patent: March 20, 2012
    Assignee: Vision Solutions Technologies, Inc.
    Inventors: Alan N. Glazier, Robert S. Winsor
  • Patent number: 7842086
    Abstract: An intraocular implant including a plurality of mirrors, including mirrors having optical power, being operative, when the implant is implanted, for receiving light from a scene and focusing the light onto a retina, the mirrors containing bio-incompatible materials and at least one hermetically sealed enclosure, enclosing the plurality of mirrors, and being operative, when the implant is implanted, to seal the bio-incompatible materials from the interior of the eye, without interfering with the passage of light therethrough from the scene to the plurality of mirrors and from the plurality of mirrors to the retina.
    Type: Grant
    Filed: January 7, 2005
    Date of Patent: November 30, 2010
    Assignee: Visioncare Ophthalmic Technologies, Inc.
    Inventors: Gideon Dotan, Yossi Gross, Eli Aharoni
  • Patent number: 7410500
    Abstract: An intraocular lens comprises, as one face thereof, a Fresnel prism. Such a lens can be used for the treatment of a macular condition requiring a change of focus, e.g. age-related macular degeneration.
    Type: Grant
    Filed: November 28, 2002
    Date of Patent: August 12, 2008
    Assignee: Rayner Intraocular Lenses Ltd
    Inventor: Charles Claoue
  • Patent number: 7229476
    Abstract: An optical element is adapted for implantation into a vitreous chamber of an eye, and a suspension system is configured to position a portion of the optical element to intersect a visual axis of an eye.
    Type: Grant
    Filed: May 17, 2004
    Date of Patent: June 12, 2007
    Assignee: Massachusetts Eye & Ear Infirmary
    Inventor: Dimitri T. Azar
  • Patent number: 6913620
    Abstract: An intraocular implant for implantation into the interior of an eye is disclosed. The intraocular implant includes a body member, (the body member has an anterior surface and a posterior surface, and has optical properties,) and, at least one mirror, wherein the at least one mirror is contained within the body member.
    Type: Grant
    Filed: December 11, 2002
    Date of Patent: July 5, 2005
    Inventor: Isaac Lipshitz
  • Publication number: 20030187503
    Abstract: An intraocular implant for implantation into the interior of an eye is disclosed. The intraocular implant includes a body member, (the body member has an anterior surface and a posterior surface, and has optical properties,) and, at least one mirror, wherein the at least one mirror is contained within the body member.
    Type: Application
    Filed: March 29, 2002
    Publication date: October 2, 2003
    Applicant: ISAAC LIPSHITZ
    Inventors: Isaac Lipshitz, Haya Ruchvarger
  • Publication number: 20030187502
    Abstract: An intraocular implant for implantation into the interior of an eye is disclosed. The intraocular implant includes a body member, (the body member has an anterior surface and a posterior surface, and has optical properties,) and, at least one mirror, wherein the at least one mirror is contained within the body member.
    Type: Application
    Filed: December 11, 2002
    Publication date: October 2, 2003
    Inventor: Isaac Lipshitz
  • Publication number: 20020173847
    Abstract: There is disclosed an accommodating intraocular lens for implantation in an eye having an optical axis. The lens comprises an anterior portion which in turn comprises an anterior viewing element and an anterior biasing element. The lens further comprises a posterior portion which in turn comprises a posterior viewing element in spaced relationship to the anterior viewing element and a posterior biasing element. The anterior portion and posterior portion meet at first and second apices of the intraocular lens. The anterior portion and the posterior portion and/or the apices are responsive to force thereon to cause the separation between the viewing elements to change. Additional embodiments and methods are also disclosed.
    Type: Application
    Filed: December 11, 2001
    Publication date: November 21, 2002
    Inventors: Hai-Minh Pham, Gholam-Reza Zadno-Azizi, Tuan Anh Nguyen
  • Publication number: 20020101564
    Abstract: An artificial lens including a lens system having eccentric axes for in an eye having a macula and an enlarged natural pupil is shown. The artificial lens comprises a first optical lens system and a second optical lens system. The principal axis of each optical lens system is eccentric to each other and the distance between each principal axis is selected to enable the first optical lens system and the second optical lens system to be operable within the enlarged pupil. The lens system of the artificial lens system directs light rays from each image of each lens of the first optical lens system and second optical lens system onto a fovea centralis of the macula of an eye. In the preferred embodiment, a prism having a preselected diopter power is positioned on a selected surface of one of the first optical lens system and second optical lens system for directing light rays from an object onto a fovea centralis of the macula of an eye. A contact lens having an eccentric optical system is also shown.
    Type: Application
    Filed: March 19, 2002
    Publication date: August 1, 2002
    Inventor: Robert S. Herrick
  • Publication number: 20020082690
    Abstract: A method of cast molding an intraocular implant from two or more dissimilar materials using disposable molds. The subject cast molding method is particularly useful in the production of intraocular lenses manufactured from dissimilar materials. It is desirable to produce intraocular lenses from dissimilar materials in order to optimize the optical characteristics of the intraocular lens optic portion and to optimize stability and flexibility characteristics of the intraocular lens haptic elements.
    Type: Application
    Filed: February 27, 2002
    Publication date: June 27, 2002
    Inventor: Kamal K. Sarbadhikari
  • Patent number: 6358280
    Abstract: An artificial lens including a lens system having eccentric axes for in an eye having a macula and an enlarged natural pupil is shown. The artificial lens comprises a first optical lens system and a second optical lens system. The principal axis of each optical lens system is eccentric to each other and the distance between each principal axis is selected to enable the first optical lens system and the second optical lens system to be operable within the enlarged pupil. The lens system of the artificial lens system directs light rays from each image of each lens of the first optical lens system and second optical lens system onto a fovea centralis of the macula of an eye. In the preferred embodiment, a prism having a preselected diopter power is positioned on a selected surface of one of the first optical lens system and second optical lens system for directing light rays from an object onto a fovea centralis of the macula of an eye. A contact lens having an eccentric optical system is also shown.
    Type: Grant
    Filed: July 20, 1998
    Date of Patent: March 19, 2002
    Assignee: Herrick Family Limited Partnership a California Limited Partnership
    Inventor: Robert S. Herrick