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)
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Publication number: 20080027538Abstract: An accommodating intraocular lens where a polyspheric optic is moveable relative to the outer ends of the extended portions. The lens comprises an optic made from a flexible material combined with extended portions that is capable of multiple flexions without breaking. The optic with a single focal point has a central area of increased power of less than 1.0 diopter to aid near vision. A method is disclosed of implanting the present lens in the non-dominant eye of a patient.Type: ApplicationFiled: July 27, 2006Publication date: January 31, 2008Inventor: J. Stuart Cumming
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Publication number: 20080027539Abstract: 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: ApplicationFiled: July 25, 2006Publication date: January 31, 2008Inventor: J. Stuart Cumming
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Publication number: 20080027540Abstract: 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: ApplicationFiled: September 7, 2006Publication date: January 31, 2008Inventor: J. Stuart Cumming
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Publication number: 20080021550Abstract: 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: ApplicationFiled: July 19, 2006Publication date: January 24, 2008Inventor: Gary A. Richardson
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Patent number: 7316713Abstract: 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: GrantFiled: August 29, 2005Date of Patent: January 8, 2008Assignee: Alcon, Inc.Inventor: Xiaoxiao Zhang
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Publication number: 20070276483Abstract: 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: ApplicationFiled: May 25, 2006Publication date: November 29, 2007Applicant: VISIONCARE OPHTHALMIC TECHNOLOGIES INC.Inventors: Eli Aharoni, Yossi Gross
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Patent number: 7261737Abstract: 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: GrantFiled: October 22, 2004Date of Patent: August 28, 2007Assignee: PowerVision, Inc.Inventors: Victor C. Esch, Donald Stenger, Barry Cheskin
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Patent number: 7247168Abstract: 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: GrantFiled: July 1, 2005Date of Patent: July 24, 2007Assignee: PowerVision, Inc.Inventors: Victor Esch, Barry Cheskin, John Scholl, Henry Wu, David Smith, Bill Evans, Patrick Myall, Terry Smiley
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Patent number: 7247689Abstract: 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: GrantFiled: September 1, 2005Date of Patent: July 24, 2007Assignee: Advanced Medical Optics, Inc.Inventors: Harish C. Makker, Michael D. Lowery, Can B. Hu
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Patent number: 7238201Abstract: 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: GrantFiled: August 6, 2003Date of Patent: July 3, 2007Assignee: Visiogen, Inc.Inventors: Valdemar Portney, Nathaniel Gerald Portney
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Patent number: 7229475Abstract: 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: GrantFiled: December 10, 2003Date of Patent: June 12, 2007Assignee: Vision Solutions Technologies, Inc.Inventor: Alan Glazier
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Patent number: 7229476Abstract: 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: GrantFiled: May 17, 2004Date of Patent: June 12, 2007Assignee: Massachusetts Eye & Ear InfirmaryInventor: Dimitri T. Azar
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Patent number: 7226478Abstract: 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: GrantFiled: December 11, 2001Date of Patent: June 5, 2007Assignee: Visiogen, Inc.Inventors: Albert C. Ting, Gholam-Reza Zadno-Azizi, Tuan Anh Nguyen, Valdemar Portney
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Patent number: 7223288Abstract: 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: GrantFiled: February 26, 2004Date of Patent: May 29, 2007Assignee: Alcon, Inc.Inventors: Xiaoxiao Zhang, Yin Yang
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Patent number: 7220279Abstract: 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: GrantFiled: August 21, 2002Date of Patent: May 22, 2007Assignee: Nulens LtdInventor: Yehoshua Ben Nun
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Patent number: 7217288Abstract: 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: GrantFiled: October 17, 2005Date of Patent: May 15, 2007Assignee: Powervision, Inc.Inventors: Victor Esch, John Scholl, Terry Smiley, Patrick Myall, Bill Evans, Barry Cheskin, Henry Wu
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Patent number: 7198640Abstract: 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: GrantFiled: July 25, 2002Date of Patent: April 3, 2007Assignee: Visiogen, Inc.Inventor: Tuan Anh Nguyen
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Patent number: 7150759Abstract: An intraocular lens (IOL) includes an optic for focusing light and an accommodation assembly for axially moving and/or deforming the optic in response to naturally occurring actions of the eye, thus allowing a patient to more effectively focus on near objects. In addition, the optic may be multifocal or aspheric, wherein the maximum add power of the lens is combined with the increase in diopter power obtained through axial movement and/or deformation of the optic, resulting in enhanced accommodation.Type: GrantFiled: September 12, 2003Date of Patent: December 19, 2006Assignee: Advanced Medical Optics, Inc.Inventors: Marlene L. Paul, Daniel G. Brady, Michael Lowery
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Patent number: 7150760Abstract: 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: GrantFiled: March 22, 2004Date of Patent: December 19, 2006Assignee: Alcon, Inc.Inventor: Xiaoxiao Zhang
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Patent number: 7122053Abstract: 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: GrantFiled: December 12, 2003Date of Patent: October 17, 2006Assignee: Powervision, Inc.Inventor: Victor Esch
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Patent number: 7118597Abstract: 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: GrantFiled: October 14, 2004Date of Patent: October 10, 2006Inventors: David Miller, Ernesto Blanco
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Patent number: 7118596Abstract: 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: GrantFiled: December 11, 2001Date of Patent: October 10, 2006Assignee: Visiogen, Inc.Inventors: Gholam-Reza Zadno-Azizi, Albert C. Ting, Tuan Anh Nguyen
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Patent number: 7097660Abstract: 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: GrantFiled: December 10, 2001Date of Patent: August 29, 2006Inventor: Valdemar Portney
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Patent number: 7087080Abstract: 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: GrantFiled: December 11, 2001Date of Patent: August 8, 2006Assignee: Visiogen, Inc.Inventors: Gholam-Reza Zadno-Azizi, Erica J. Rogers, Tuan Anh Nguyen, Albert C. Ting
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Patent number: 7063723Abstract: 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: GrantFiled: July 23, 2004Date of Patent: June 20, 2006Inventor: Sun Ran
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Patent number: 7048760Abstract: 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: GrantFiled: June 3, 2003Date of Patent: May 23, 2006Assignee: Medevec Licensing B.V.Inventor: J. Stuart Cumming
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Patent number: 7041134Abstract: 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: GrantFiled: June 25, 2004Date of Patent: May 9, 2006Assignee: Visiogen, Inc.Inventors: Tuan Anh Nguyen, Valdemar Portney, Gholam-Reza Zadno-Azizi, Albert C. Ting
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Patent number: 7037338Abstract: 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: GrantFiled: November 18, 2002Date of Patent: May 2, 2006Inventor: Toshiyuki Nagamoto
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Patent number: 7029497Abstract: 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: GrantFiled: May 21, 2003Date of Patent: April 18, 2006Assignee: Alcon, Inc.Inventors: Xiaoxiao Zhang, Yin Yang
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Patent number: 7018410Abstract: 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: GrantFiled: August 5, 2002Date of Patent: March 28, 2006Inventor: Mehdi Vazeen
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Patent number: 7018409Abstract: 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: GrantFiled: September 13, 2002Date of Patent: March 28, 2006Assignee: Advanced Medical Optics, Inc.Inventors: Robert E. Glick, Alan J. Lang
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Patent number: 6986787Abstract: 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: GrantFiled: March 12, 2003Date of Patent: January 17, 2006Inventor: David Littleton Baker, Jr.
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Patent number: 6972033Abstract: 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: GrantFiled: August 26, 2002Date of Patent: December 6, 2005Assignee: Advanced Medical Optics, Inc.Inventor: Thomas McNicholas
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Patent number: 6932839Abstract: 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: GrantFiled: November 27, 2002Date of Patent: August 23, 2005Inventors: William Kamerling, Joseph M. Kamerling
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Patent number: 6921416Abstract: 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: GrantFiled: November 1, 2002Date of Patent: July 26, 2005Inventor: Elie Khoury
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Patent number: 6884263Abstract: 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: GrantFiled: July 2, 2002Date of Patent: April 26, 2005Assignee: Medennium, Inc.Inventors: Igor Valyunin, Stephen Q. Zhou
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Patent number: 6858040Abstract: 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: GrantFiled: December 11, 2001Date of Patent: February 22, 2005Assignee: Visiogen, Inc.Inventors: Tuan Anh Nguyen, Valdemar Portney, Gholam-Reza Zadno-Azizi, Albert C. Ting
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Patent number: 6855164Abstract: 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: GrantFiled: May 30, 2002Date of Patent: February 15, 2005Assignee: Vision Solutions Technologies, LLCInventor: Alan N. Glazier
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Patent number: 6849091Abstract: 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: GrantFiled: May 19, 2000Date of Patent: February 1, 2005Assignee: Eyeonics, Inc.Inventor: J. Stuart Cumming
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Patent number: 6846326Abstract: 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: GrantFiled: December 11, 2001Date of Patent: January 25, 2005Assignee: Visiogen, Inc.Inventors: Gholam-Reza Zadno-Azizi, Valdemar Portney, Tuan Anh Nguyen
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Publication number: 20040260395Abstract: 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: ApplicationFiled: June 19, 2003Publication date: December 23, 2004Inventor: Brian S. Boxer Wachler
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Publication number: 20040249455Abstract: 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: ApplicationFiled: June 9, 2003Publication date: December 9, 2004Inventor: Son Trung Tran
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Publication number: 20040249456Abstract: 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: ApplicationFiled: July 7, 2004Publication date: December 9, 2004Applicant: EYEONICS, INC.Inventor: J. Stuart Cumming
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Publication number: 20040243232Abstract: 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: ApplicationFiled: March 12, 2004Publication date: December 2, 2004Applicant: eyeonics, incInventor: J. Stuart Cumming
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Publication number: 20040236422Abstract: 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: ApplicationFiled: February 26, 2004Publication date: November 25, 2004Inventors: Xiaoxiao Zhang, Yin Yang
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Publication number: 20040236423Abstract: 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: ApplicationFiled: May 21, 2003Publication date: November 25, 2004Inventors: Xiaoxiao Zhang, Yin Yang
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Publication number: 20040230300Abstract: 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: ApplicationFiled: June 18, 2004Publication date: November 18, 2004Inventors: Mark H. Bandhauer, George F. Green, Donald Carrol Stenger, Michael T. Landreville
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Patent number: 6818017Abstract: 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: GrantFiled: February 15, 2001Date of Patent: November 16, 2004Inventor: Stephen Shu
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Publication number: 20040215340Abstract: 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: ApplicationFiled: February 10, 2004Publication date: October 28, 2004Inventors: Arthur Messner, Khalil Hanna
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Publication number: 20040199149Abstract: 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: ApplicationFiled: January 2, 2004Publication date: October 7, 2004Inventors: Raymond I. Myers, Ronald Krueger