Focal Power Of Lens Can Be Continuously Varied By Movement Of Body Part (e.g., Head, Eyes, Ciliary Muscles, Etc.) Patents (Class 623/6.37)
  • Publication number: 20080027538
    Abstract: An accommodating intraocular lens where a polyspheric optic is moveable relative to the outer ends of the extended portions. The lens comprises an optic made from a flexible material combined with extended portions that is capable of multiple flexions without breaking. The optic with a single focal point has a central area of increased power of less than 1.0 diopter to aid near vision. A method is disclosed of implanting the present lens in the non-dominant eye of a patient.
    Type: Application
    Filed: July 27, 2006
    Publication date: January 31, 2008
    Inventor: J. Stuart Cumming
  • Publication number: 20080027539
    Abstract: An accommodating intraocular lens comprising a flexible body, a flexible optic which is moveable anteriorly and posteriorly relative to the lens body, and hinged portions longitudinally connecting the optic to the body. The body may have extending centration and fixation loops on its distal ends.
    Type: Application
    Filed: July 25, 2006
    Publication date: January 31, 2008
    Inventor: J. Stuart Cumming
  • Publication number: 20080027540
    Abstract: An accommodating intraocular lens where the optic is moveable relative to the outer ends of the extended portions. The lens comprises an optic made from a flexible material combined with haptics capable of multiple flexions without breaking. The haptics are narrow adjacent the optic and wider at their outer ends. The haptics have wide and deep hinges adjacent the optic to better allow the hinges to “stretch” somewhat.
    Type: Application
    Filed: September 7, 2006
    Publication date: January 31, 2008
    Inventor: J. Stuart Cumming
  • Publication number: 20080021550
    Abstract: An accommodative intraocular lens (AIOL) adapted to fit in a capsular bag, having an optic; at least three haptic arms, each arm being coupled to the optic along the arm's length and at least three plates, each plate having an outer surface arranged to contact the capsular bag and each plate being coupled to at least two of the haptic arms, the coupling with each arm occurring at a connection. The haptic arms and plates, in combination, may be arranged to form a closed figure surrounding the optic. A first area of the outer surface of at least one of the plates may be disposed anteriorly of a centroid of the connection with at least one of the plates, and a second area of the outer surface of the at least one of the plates being disposed posteriorly of the centroid, the first area and the second area being within 200% of one another in magnitude.
    Type: Application
    Filed: July 19, 2006
    Publication date: January 24, 2008
    Inventor: Gary A. Richardson
  • Patent number: 7316713
    Abstract: A two optic accommodative lens system. The present invention also contemplates the use of a cam mechanism to adjust the distance power via adjustment of the dual lens separation when the eye is at distance vision stasis. The cam mechanism allows for distance/base power adjustment as needed.
    Type: Grant
    Filed: August 29, 2005
    Date of Patent: January 8, 2008
    Assignee: Alcon, Inc.
    Inventor: Xiaoxiao Zhang
  • Publication number: 20070276483
    Abstract: An intraocular telescopic lens assembly including a negative lens having a negative lens optical axis, a positive lens having a positive lens optical axis and a spacer disposed intermediate the negative lens and the positive lens, the spacer being operative to maintain mutual orientation of the negative lens and the positive lens such that the negative lens optical axis is coaxial with the positive lens optical axis.
    Type: Application
    Filed: May 25, 2006
    Publication date: November 29, 2007
    Applicant: VISIONCARE OPHTHALMIC TECHNOLOGIES INC.
    Inventors: Eli Aharoni, Yossi Gross
  • Patent number: 7261737
    Abstract: An accommodating intraocular lens is provided having optical parameters that are altered in-situ, wherein an optic portion of the lens includes a lens piston that alters the shape of a lens element of the lens to alter the optical power of the lens, responsive to forces applied to a haptic portion to the lens by contraction of the ciliary muscles. Forces applied to the haptic portion are concentrated by the lens piston to provide a greater dynamic range, and may be further augmented by the use of haptic pistons disposed in the haptic portion of the lens.
    Type: Grant
    Filed: October 22, 2004
    Date of Patent: August 28, 2007
    Assignee: PowerVision, Inc.
    Inventors: Victor C. Esch, Donald Stenger, Barry Cheskin
  • Patent number: 7247168
    Abstract: An accommodating intraocular lens is provided having optical parameters that are altered in-situ, wherein an 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 a haptic portion to the lens by contraction of the ciliary muscles. Forces applied to the haptic portion may result in fluid displacements from or to the haptic portion from the actuator. Displacement of fluid to the actuator may either increase or reduce the degree of deflection imposed on the lens element by the actuator.
    Type: Grant
    Filed: July 1, 2005
    Date of Patent: July 24, 2007
    Assignee: PowerVision, Inc.
    Inventors: Victor Esch, Barry Cheskin, John Scholl, Henry Wu, David Smith, Bill Evans, Patrick Myall, Terry Smiley
  • Patent number: 7247689
    Abstract: Biocompatible polymers useful for making anterior chamber intraocular lenses (AC-IOL) are provided. The biocompatible polymers are generally composed of one or more acrylate monomers, crosslinked with at least one diacrylate ester and may include one or more additional components such as ultraviolet light and/or blue-violet light absorbing dyes. The AC-IOLs made using the biocompatible polymers disclosed herein are suitable for placement in phakic or aphakic eyes and are intended for refractive correction including myopia, hyperopia, presbyopia and astigmatisms.
    Type: Grant
    Filed: September 1, 2005
    Date of Patent: July 24, 2007
    Assignee: Advanced Medical Optics, Inc.
    Inventors: Harish C. Makker, Michael D. Lowery, Can B. Hu
  • Patent number: 7238201
    Abstract: An intraocular lens system adapted to be implanted within an eye includes an anterior optic movable in a forward direction within the eye. The intraocular lens system further includes at least two anterior haptic arms, each anterior haptic arm having a first end coupled to the anterior optic and a second end adapted to be coupled to the eye. The intraocular lens system further includes a posterior optic movable in the forward direction within the eye and coupled to the anterior haptic arms. The intraocular lens system further includes at least one posterior haptic member adapted to be coupled to the eye and coupled to the posterior optic. The anterior haptic arms are responsive to a first forward movement of the posterior optic by actuating a second forward movement of the anterior optic substantially larger than the first forward movement.
    Type: Grant
    Filed: August 6, 2003
    Date of Patent: July 3, 2007
    Assignee: Visiogen, Inc.
    Inventors: Valdemar Portney, Nathaniel Gerald Portney
  • Patent number: 7229475
    Abstract: An intraocular lens is provided that includes an optic body having anterior and posterior walls, a chamber, and optically transmissive primary and secondary fluids, and method for making and using the same. The secondary fluid is substantially immiscible with the primary fluid and has a different density and a different refractive index than the primary fluid. The primary fluid is present in a sufficient amount that orienting optical body optical axis horizontally for far vision positions the optical axis through the primary fluid, thereby immersing the anterior and posterior optical centers in the primary fluid. The secondary fluid is contained in the optic body in a sufficient amount that orienting the optical axis over a range of effective downward angles relative to the horizontal for near vision positions the optical axis to extend through the primary fluid and the secondary fluid, thus changing the focus of the intraocular lens.
    Type: Grant
    Filed: December 10, 2003
    Date of Patent: June 12, 2007
    Assignee: Vision Solutions Technologies, Inc.
    Inventor: Alan Glazier
  • 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: 7226478
    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: Grant
    Filed: December 11, 2001
    Date of Patent: June 5, 2007
    Assignee: Visiogen, Inc.
    Inventors: Albert C. Ting, Gholam-Reza Zadno-Azizi, Tuan Anh Nguyen, Valdemar Portney
  • Patent number: 7223288
    Abstract: A two-optic accommodative lens system. The first lens has a negative power and is located posteriorly within the capsular bag and laying against the posterior capsule. The periphery of the first lens contains a pair of generally T-shaped haptics oriented along a vertical meridian of the capsular bag and having a generally rectangular slot within the top portion of the “T”. The first lens further having a plurality of elongated haptics oriented along a horizontal meridian of the capsular bag. The second lens is located anteriorly to the first lens outside of the capsular bag and is of a positive power. The peripheral edge of the second lens contains a pair of encircling haptics having a notched tab sized and shape to fit within the slots in the haptics on the first lens to lock the second lens onto the first lens. Hinge structures on the encircling haptics allow the second lens to move relative to the first lens along the optical axis of the lens system in reaction to movement of the ciliary muscle.
    Type: Grant
    Filed: February 26, 2004
    Date of Patent: May 29, 2007
    Assignee: Alcon, Inc.
    Inventors: Xiaoxiao Zhang, Yin Yang
  • Patent number: 7220279
    Abstract: An accommodating lens assembly having an optical axis and being adapted to be implanted in a posterior chamber of an eye having a capsular unit located therein. The assembly includes a rigid haptics element adapted to secure the assembly within the posterior chamber outside said capsular unit. The element is transparent at least in a region around the axis. The assembly further includes a resilient body adapted to operate as a lens having a curved surface when pressed up against the region of the haptics element by an axial force applied thereto by the capsular unit. A change in this force causes a change in a radius of curvature for the curved surface.
    Type: Grant
    Filed: August 21, 2002
    Date of Patent: May 22, 2007
    Assignee: Nulens Ltd
    Inventor: Yehoshua Ben Nun
  • Patent number: 7217288
    Abstract: An accommodating intraocular lens is provided in which a deflectable lens element is anchored to a substrate along its optical axis to define a fluid filled space. Fluid-filled haptics disposed in fluid communication with the space vary the fluid volume in the space responsive to forces applied by the ciliary muscles, thereby causing the periphery of the lens element to deflect relative to the substrate and changing the optical power of the intraocular lens.
    Type: Grant
    Filed: October 17, 2005
    Date of Patent: May 15, 2007
    Assignee: Powervision, Inc.
    Inventors: Victor Esch, John Scholl, Terry Smiley, Patrick Myall, Bill Evans, Barry Cheskin, Henry Wu
  • Patent number: 7198640
    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: Grant
    Filed: July 25, 2002
    Date of Patent: April 3, 2007
    Assignee: Visiogen, Inc.
    Inventor: Tuan Anh Nguyen
  • Patent number: 7150759
    Abstract: An intraocular lens (IOL) includes an optic for focusing light and an accommodation assembly for axially moving and/or deforming the optic in response to naturally occurring actions of the eye, thus allowing a patient to more effectively focus on near objects. In addition, the optic may be multifocal or aspheric, wherein the maximum add power of the lens is combined with the increase in diopter power obtained through axial movement and/or deformation of the optic, resulting in enhanced accommodation.
    Type: Grant
    Filed: September 12, 2003
    Date of Patent: December 19, 2006
    Assignee: Advanced Medical Optics, Inc.
    Inventors: Marlene L. Paul, Daniel G. Brady, Michael Lowery
  • Patent number: 7150760
    Abstract: A two optic accommodative lens system. The first lens in the system is fixed in the anterior chamber of an eye. The second lens in the system includes a non-circular ring with radial dimensions that are different in at least two meridians and implanted in the posterior chamber of an eye within the capsular bag. The radial dimension of vertical meridian of the lens approximates the natural diameter of the capsular bag. The optic of the second lens is connected to the ring at the vertical meridian by two or more of haptics. The radial dimension of horizontal meridian of the second lens is slightly larger than the natural diameter of the capsular bag.
    Type: Grant
    Filed: March 22, 2004
    Date of Patent: December 19, 2006
    Assignee: Alcon, Inc.
    Inventor: Xiaoxiao Zhang
  • Patent number: 7122053
    Abstract: An accommodating intraocular lens is provided that having optical parameters that are altered in-situ using forces applied by the ciliary muscles, in which a lens body carries an actuator separating two fluid-filled chambers having either the same index of diffraction or different indices of refraction, actuation of the actuator changing the relative volumes of fluid within an optic element of the lens and altering the optical power of the lens.
    Type: Grant
    Filed: December 12, 2003
    Date of Patent: October 17, 2006
    Assignee: Powervision, Inc.
    Inventor: Victor Esch
  • Patent number: 7118597
    Abstract: An intraocular lens arrangement having positive or negative lens with a frame that extends from the lens to provide diametrically opposed upper and lower frame sections. A first lens linkage has its first end attached to the upper frame section with at least two points of contact with the upper frame section. A second lens linkage has its first end attached to the lower frame section with at least two points of contact with the lower frame section. A second end of said first lens linkage and a second end of the second lens linkage are attached to a sulcus or zonule member to provide relatively large movement of the lens with a small movement of the ciliary muscle during accomodation response of the eye, and wherein the movements during the accommodation response are along the optical axis of the eye and are controlled in order to improve the image on the retina of objects viewed by the eye over a wide range of distances. The lens is preferably a positive lens with the appropriate frame.
    Type: Grant
    Filed: October 14, 2004
    Date of Patent: October 10, 2006
    Inventors: David Miller, Ernesto Blanco
  • Patent number: 7118596
    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: Grant
    Filed: December 11, 2001
    Date of Patent: October 10, 2006
    Assignee: Visiogen, Inc.
    Inventors: Gholam-Reza Zadno-Azizi, Albert C. Ting, Tuan Anh Nguyen
  • Patent number: 7097660
    Abstract: An accommodating intraocular lens is disclosed that provides vision accommodation in response to contraction of an eye's ciliary muscle. The intraocular lens includes a deformable elastic dynamic lens having a non-accommodating surface curvature and a lens-shaping member having flexible portions in contact with peripheral edge regions of the dynamic lens for enabling compressive deformation thereof for changing the lens surface curvature to achieve accommodation. The intraocular lens also includes an elastically flexible coil member mounted around the lens-shaping member flexible portions. A first lens-supporting member has a proximal end region that engages the flexible coil member and a second lens-supporting member has a proximal end region connected to the lens-shaping member.
    Type: Grant
    Filed: December 10, 2001
    Date of Patent: August 29, 2006
    Inventor: Valdemar Portney
  • Patent number: 7087080
    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: Grant
    Filed: December 11, 2001
    Date of Patent: August 8, 2006
    Assignee: Visiogen, Inc.
    Inventors: Gholam-Reza Zadno-Azizi, Erica J. Rogers, Tuan Anh Nguyen, Albert C. Ting
  • Patent number: 7063723
    Abstract: An introocular lens (IOL) includes an optic; a haptic; a flexible membrane substantially encircling the optic and connected between the optic and the haptic, the flexible membrane having a flexibility greater than the optic and the haptic. The flexible membrane permits travel of the optic relative to the haptic to permit accommodation in the eye. The flexible membrane my also drive a curvature change in the optic as it travels during accommodation.
    Type: Grant
    Filed: July 23, 2004
    Date of Patent: June 20, 2006
    Inventor: Sun Ran
  • Patent number: 7048760
    Abstract: An accommodating intraocular lens having anteriorly and posteriorly movable extended portions, such as T-shaped haptics, extending from a central optic to be implanted within a natural capsular bag of a human eye with the extended portions positioned between an anterior capsular rim and a posterior capsule of the bag, whereby during a post-operative healing period, fibrosis occurs about the extended portions to fixate the lens in the bag in a manner such that subsequent natural contraction and relaxation of the ciliary muscle moves the optic to provide vision accommodation of increased accommodation amplitude and diopters of accommodation.
    Type: Grant
    Filed: June 3, 2003
    Date of Patent: May 23, 2006
    Assignee: Medevec Licensing B.V.
    Inventor: J. Stuart Cumming
  • Patent number: 7041134
    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: Grant
    Filed: June 25, 2004
    Date of Patent: May 9, 2006
    Assignee: Visiogen, Inc.
    Inventors: Tuan Anh Nguyen, Valdemar Portney, Gholam-Reza Zadno-Azizi, Albert C. Ting
  • Patent number: 7037338
    Abstract: An intraocular ring assembly and an artificial lens kit, both of which are usable for implantation in a lens capsule or capsular bag of natural eye. The intraocular ring assembly includes a first ring element having recessions therein, a second ring element, and a biasing element provided between the first and second ring elements. The artificial lens kit comprises such intraocular ring assembly and an intraocular lens to be movably supported in the recessions of the ring assembly in a coaxial relation therewith. A guide element may be provided to assist in rectilinear coaxial movement of the first and second ring elements.
    Type: Grant
    Filed: November 18, 2002
    Date of Patent: May 2, 2006
    Inventor: Toshiyuki Nagamoto
  • Patent number: 7029497
    Abstract: A single optic accommodative lens. The lens includes a non-circular ring with radial dimensions that are different in at least two meridians. The radial dimension of vertical meridian of the lens approximates the natural diameter of the capsular bag. The optic of the lens is connected to the ring at the vertical meridian by a pair of haptics.
    Type: Grant
    Filed: May 21, 2003
    Date of Patent: April 18, 2006
    Assignee: Alcon, Inc.
    Inventors: Xiaoxiao Zhang, Yin Yang
  • Patent number: 7018410
    Abstract: An accommodating intraocular lens utilizing an optical element for correcting the vision of a patient. The optical element is positioned in the open capsular bag following an extra-capsular surgical procedure and phakoemulsification of the clouded natural lens. The optical element is adjusted anteriorly and posteriorly by a plurality of arms that are linked to the open capsular bag held by the zonular system of the eye.
    Type: Grant
    Filed: August 5, 2002
    Date of Patent: March 28, 2006
    Inventor: Mehdi Vazeen
  • Patent number: 7018409
    Abstract: Intraocular lenses include a lens body sized and adapted for placement in a mammalian eye and having a plurality of different optical powers, and a movement assembly joined to the lens body and adapted to cooperate with the mammalian eye to effect accommodating movement of the lens body in the eye. The lens body has an azonal, aspheric surface, with the correction power of the lens varying continuously and progressively from the optical axis to the periphery of the lens. Such intraocular lenses provide enhanced accommodation relative to the accommodation attainable using a spheric, monofocal IOL adapted for accommodating movement or an aspheric accommodating lens located in a substantially fixed position in an eye.
    Type: Grant
    Filed: September 13, 2002
    Date of Patent: March 28, 2006
    Assignee: Advanced Medical Optics, Inc.
    Inventors: Robert E. Glick, Alan J. Lang
  • Patent number: 6986787
    Abstract: An accommodative intraocular lens is provided to replace a natural lens. The intraocular lens structure includes an optical portion and a haptic portion. The optical portion includes a replacement lens while the haptic portion includes the structure that holds the lens in position while keeping the anterior capsular sac taunt and annular in shape. The haptic in the present invention stabilizes the annular structure of the peripheral zone at the capsular sac's largest diameter and also stabilizes the conical structure of the capsular sac as well. The haptic structure includes a helical coil of increasing radius from the lens to the terminating annular ring that thus forms a conical coil spring. Compression and relaxation of the coiled (spring) haptics between the anterior and posterior capsule, during tightening and relaxation of lens zonule and ciliary body, move the lens to anteriorly and posteriorly and induces accommodation.
    Type: Grant
    Filed: March 12, 2003
    Date of Patent: January 17, 2006
    Inventor: David Littleton Baker, Jr.
  • Patent number: 6972033
    Abstract: An intraocular lens (IOL) has been provided with an accommodation assembly that effects axial movement of the IOL optic through both the radial action of ciliary muscles and the axial forces resulting from vitreous pressure on the posterior wall of the capsular bag. In a preferred embodiment, the assembly comprises an IOL having substantially rigid, posteriorly extending fixation members which extend through slots in an accommodation ring encircling the optic. Axial forces exerted by vitreous fluids on the posterior wall of the capsular bag are transmitted from the posterior wall to the ring to the fixation members at the slot areas, causing axial movement of the IOL. At the same time, the angulation of the haptics converts radial forces due to contraction or expansion of the capsular bag into axial forces, causing still more axial movement of the IOL.
    Type: Grant
    Filed: August 26, 2002
    Date of Patent: December 6, 2005
    Assignee: Advanced Medical Optics, Inc.
    Inventor: Thomas McNicholas
  • Patent number: 6932839
    Abstract: An intraocular lens assembly and method. The assembly comprises an optic disc and an annulus surrounding the optic disc. Hinges connect the optic disc to the annulus to permit anterior and posterior movement of the optic disc relative to the annulus in response to contraction and relaxation of the ciliary muscle so that the eye accommodates to focus on a near object. The method comprises the steps of placing in the posterior chamber an optic disc and an annulus. The annulus surrounds the optic disc and is connected to it by hinges that permit anterior and posterior movement of the optic disc relative to annulus in response to contraction and relaxation of the ciliary muscle whereby said eye accommodates to focus on a near object.
    Type: Grant
    Filed: November 27, 2002
    Date of Patent: August 23, 2005
    Inventors: William Kamerling, Joseph M. Kamerling
  • Patent number: 6921416
    Abstract: An intraocular implant including a lens and a shell component. The shell component includes a shell peripheral wall encompassing a shell inner volume for protectively enclosing the lens and allowing the latter to move therein between lens accommodating positions. The lens is pivotable within the shell inner volume between a lens first position wherein the lens is in a substantially proximal relationship relative to a shell wall first segment and a lens second position wherein the lens is in a substantially proximal relationship relative to a shell wall second segment.
    Type: Grant
    Filed: November 1, 2002
    Date of Patent: July 26, 2005
    Inventor: Elie Khoury
  • Patent number: 6884263
    Abstract: An accommodative intraocular lens is disclosed. The lens provides multiple focuses as the result of a bi-directional shift along the eye's optical axis, and also minimizes or prevents posterior chamber opacification. The lens includes a first component which consists of an optical body and a haptic body, a second component which is structurally adapted to maintain substantial contact with the posterior surface of the capsular bag of the eye (when implanted in the eye), and a transition zone connecting the first and second components. The method of implanting the lens in the eye and the method of making the lens are also disclosed.
    Type: Grant
    Filed: July 2, 2002
    Date of Patent: April 26, 2005
    Assignee: Medennium, Inc.
    Inventors: Igor Valyunin, Stephen Q. Zhou
  • Patent number: 6858040
    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: Grant
    Filed: December 11, 2001
    Date of Patent: February 22, 2005
    Assignee: Visiogen, Inc.
    Inventors: Tuan Anh Nguyen, Valdemar Portney, Gholam-Reza Zadno-Azizi, Albert C. Ting
  • Patent number: 6855164
    Abstract: This intraocular lens includes an optic body having anterior and posterior walls, a chamber, and optically transmissive primary and secondary fluids, and method for making and using the same. The secondary fluid is substantially immiscible with the primary fluid and has a different density and a different refractive index than the primary fluid. The primary fluid is present in a sufficient amount that orienting optical body optical axis horizontally for far vision positions the optical axis through the primary fluid, thereby immersing the anterior and posterior optical centers in the primary fluid. The secondary fluid is contained in the optic body in a sufficient amount that orienting the optical axis at a range of effective downward angles relative to the horizontal for near vision positions the optical axis to extend through the primary fluid and the secondary fluid, thus changing the focus of the intraocular lens.
    Type: Grant
    Filed: May 30, 2002
    Date of Patent: February 15, 2005
    Assignee: Vision Solutions Technologies, LLC
    Inventor: Alan N. Glazier
  • Patent number: 6849091
    Abstract: An intraocular lens assembly for increased depth of focus has a frame configurated to vault posteriorly in an eye and an optic attached thereto. Pressure from ciliary muscle contraction moves the optic anteriorly to focus the eye for near vision.
    Type: Grant
    Filed: May 19, 2000
    Date of Patent: February 1, 2005
    Assignee: Eyeonics, Inc.
    Inventor: J. Stuart Cumming
  • Patent number: 6846326
    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: Grant
    Filed: December 11, 2001
    Date of Patent: January 25, 2005
    Assignee: Visiogen, Inc.
    Inventors: Gholam-Reza Zadno-Azizi, Valdemar Portney, Tuan Anh Nguyen
  • Publication number: 20040260395
    Abstract: The invention comprises a device for treating presbyopia. A stretch segment is provided for implantation into the region extending between the outer circumference of the lens and extending to the sulcus region at the intersection of the iris and ciliary body. The stretch segment engages the equatorial zonules spanning between the lens and ciliary body. The segment is designed to take up slack in the equatorial zonules in the presbyopic eye, such that their effective working distance is enhanced. This aids in the accommodation process which affects the curvature of the lens for near viewing. The segment may a closed ring, or may be open ended.
    Type: Application
    Filed: June 19, 2003
    Publication date: December 23, 2004
    Inventor: Brian S. Boxer Wachler
  • Publication number: 20040249455
    Abstract: A two-optic accommodative lens system. The first lens has a negative power and is located posteriorly within the capsular bag and lying against the posterior capsule. The periphery of the first optic contains a plurality of generally T-shaped haptics. The overall diameter of the first optic is slightly smaller than the capsular bag. The second optic is located anteriorly to the first optic outside of the capsular bag and is of a positive power. The peripheral edge of the second optic contains a plurality of generally T-shaped haptics and the second optic is slightly larger in overall diameter that the first optic. The haptics allow the second optic to move relative to the first optic along the optical axis of the lens system in reaction to movement of the ciliary muscle and corresponding shrinkage of the capsular bag.
    Type: Application
    Filed: June 9, 2003
    Publication date: December 9, 2004
    Inventor: Son Trung Tran
  • Publication number: 20040249456
    Abstract: A flexible accommodating intraocular lens having anteriorly and posteriorly movable extended portions, such as T-shaped haptics, extending from a central solid biconvex optic to be implanted within a natural capsular bag of a human eye with the extended portions positioned between an anterior capsular rim and a posterior capsule of the bag, whereby during a post-operative healing period, fibrosis occurs about the extended portions to fixate the lens in the bag in a manner such that subsequent natural contraction and relaxation of the ciliary muscle moves the optic to provide vision accommodation. A surface of the optic is a toric surface.
    Type: Application
    Filed: July 7, 2004
    Publication date: December 9, 2004
    Applicant: EYEONICS, INC.
    Inventor: J. Stuart Cumming
  • Publication number: 20040243232
    Abstract: An intraocular lens provides substantially increased depth of focus for accurate near and far vision with an optic much thinner than a natural lens, and the lens being rigid vaulted posteriorly and adapted for posterior positioning in the capsular bag. The optic is positioned substantially farther from the cornea than a natural lens, so that a cone of light exiting the optic to impinge upon the retina is much smaller than a cone of light from a natural lens. Typically, the optic may be about 1.0 mm thick and its distance from the cornea 7.0-8.0 mm.
    Type: Application
    Filed: March 12, 2004
    Publication date: December 2, 2004
    Applicant: eyeonics, inc
    Inventor: J. Stuart Cumming
  • Publication number: 20040236422
    Abstract: A two-optic accommodative lens system. The first lens has a negative power and is located posteriorly within the capsular bag and laying against the posterior capsule. The periphery of the first lens contains a pair of generally T-shaped haptics oriented along a vertical meridian of the capsular bag and having a generally rectangular slot within the top portion of the “T”. The first lens further having a plurality of elongated haptics oriented along a horizontal meridian of the capsular bag. The second lens is located anteriorly to the first lens outside of the capsular bag and is of a positive power. The peripheral edge of the second lens contains a pair of encircling haptics having a notched tab sized and shape to fit within the slots in the haptics on the first lens to lock the second lens onto the first lens.
    Type: Application
    Filed: February 26, 2004
    Publication date: November 25, 2004
    Inventors: Xiaoxiao Zhang, Yin Yang
  • Publication number: 20040236423
    Abstract: A single optic accommodative lens. The lens includes a non-circular ring with radial dimensions that are different in at least two meridians. The radial dimension of vertical meridian of the lens approximates the natural diameter of the capsular bag. The optic of the lens is connected to the ring at the vertical meridian by a pair of haptics.
    Type: Application
    Filed: May 21, 2003
    Publication date: November 25, 2004
    Inventors: Xiaoxiao Zhang, Yin Yang
  • Publication number: 20040230300
    Abstract: An accommodating intraocular lens system including a higher diopter positive intraocular lens and a lower diopter negative intraocular lens. The positive intraocular lens includes a positive optic portion having an outer peripheral edge and two or more haptic elements. The negative intraocular lens includes a negative optic portion having an outer peripheral edge and two or more haptic elements. Each haptic element is formed to have specific flexibility characteristics so as to be less resistant to bending in a plane generally parallel to an eye's optical axis than in a plane generally perpendicular to the eye's optical axis. The accommodating intraocular lens system is so designed with specific flexibility characteristics to facilitate axial displacement of the positive optic portion with respect to the negative optic portion along the eye's optical axis under a compression force.
    Type: Application
    Filed: June 18, 2004
    Publication date: November 18, 2004
    Inventors: Mark H. Bandhauer, George F. Green, Donald Carrol Stenger, Michael T. Landreville
  • Patent number: 6818017
    Abstract: A high gain lens system for implant into the capsular bag after removal of the natural crystalline lens. A preferred embodiment of the invention comprises a combination of a positive or convex lens and a negative or concave lens. These two lenses are spaced from one another and their relative spacing and respective focal lengths determine their combined focal length. When the lens system is inserted into the capsular bag, two opposed haptic flanges on each side, extend toward the inner radial edge of the bag adjacent the ciliary muscles. When the muscles contract, the bag is stretched thereby compressing the haptic flanges together or at least toward one another. This action cause the two lenses to separate further from each other and the increased spacing between the positive and negative lenses shortens the focal length to permit focusing of objects at near distances. On the other hand, when the muscles relax, the bag relaxes also, the haptic flanges separate and the lenses come closer together.
    Type: Grant
    Filed: February 15, 2001
    Date of Patent: November 16, 2004
    Inventor: Stephen Shu
  • Publication number: 20040215340
    Abstract: An accommodable implant for reception in the capsular bag of an eye, comprises an optical lens (2) with a lens plane (4) and a lens axis (5) extending perpendicular thereto and through the center of the lens (2); at least two haptics (3), with each haptic (3) extending radially outward from the lens (2), and being formed integrally with the lens (2), and comprising an arm (8) which is articulated to the lens (2) by a first joint (9), and comprising a supporting element (15) for support in the equatorial area of the capsular bag, which supporting element (15) is connected to the outer end of the arm (8).
    Type: Application
    Filed: February 10, 2004
    Publication date: October 28, 2004
    Inventors: Arthur Messner, Khalil Hanna
  • Publication number: 20040199149
    Abstract: Methods for the creation of microspheres treat the clear, intact crystalline lens of the eye with energy pulses, such as from lasers, for the purpose of correcting presbyopia, other refractive errors, and for the retardation and prevention of cataracts. Microsphere formation in non-contiguous patterns or in contiguous volumes works to change the flexure, mass, or shape of the crystalline lens in order to maintain or reestablish the focus of light passing through the ocular lens onto the macular area, and to maintain or reestablish fluid transport within the ocular lens.
    Type: Application
    Filed: January 2, 2004
    Publication date: October 7, 2004
    Inventors: Raymond I. Myers, Ronald Krueger