Class / Patent application number | Description | Number of patent applications / Date published |
623600270 | Lens having regions with different focusing powers (i.e., multifocal) | 53 |
20080243247 | METHOD AND APPARATUS FOR PREVENTION AND TREATMENT OF ADULT GLAUCOMA - An apparatus and method for reducing intraocular pressure in a patient's eye is provided. A deformable intraocular member having a relaxed state with a relaxed profile having a first width, a first energized state with a first profile having a second width, and a second energized state with a second profile having a third width is provided. The deformable intraocular member relaxed state width is greater than the width of a lens capsule which surrounds a lens of the patient's eye prior to cataract surgery. The second energized state width is greater than the patient's lens capsule width after cataract surgery and smaller than the width in the relaxed state. The deformable intraocular member in the second energized state is configured to urge deformation of the lens capsule to thereby promote opening of a trabecular meshwork and canal of Schlemm of the patient's eye to promote drainage of aqueous humor from an anterior chamber and reduce intraocular pressure in the patient's eye. | 10-02-2008 |
20090062911 | MULTIZONAL LENS WITH EXTENDED DEPTH OF FOCUS - An intraocular lens for providing enhanced vision includes an optic with a clear aperture over which light may be focused onto or near the retina of an eye. The optic includes an anterior surface and an opposing posterior surface, the surfaces disposed about an optical axis. The optic includes a central zone and an outer zone disposed about the central zone. The central zone comprises a plurality of optical powers that progressively vary between a first optical power at a center of the central zone and a second optical power at a periphery of the central zone, wherein the absolute value of the difference between the first optical power and the second optical power being between predetermined values. The outer zone comprises a third optical power and may also have a negative spherical aberration. The optic typically has a variation in optical power over the entire clear aperture that is less than a predetermined amount. | 03-05-2009 |
20100004742 | Multiocular Intraocular Lens System - 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 human eye, and a second optic spaced from the posterior optic. The first optic is intended to be implanted in the capsular bag, and the second optic may be located in the capsular bag, in the sulcus, or in the anterior chamber. The second optic can be spaced from and fixed to the first optic and this lens assembly implanted in the capsular bag. | 01-07-2010 |
20100016961 | Extended Depth of Focus (EDOF) Lens to Increase Pseudo-Accommodation by Utilizing Pupil Dynamics - In one aspect, the present invention provides an ophthalmic lens (e.g., an IOL) that includes an optic having an anterior surface and a posterior surface disposed about an optical axis. At least one of the surfaces (e.g., the anterior surface) has a profile characterized by superposition of a base profile and an auxiliary profile. The auxiliary profile can include an inner region, an outer region and a transition region between the inner and the outer regions, where an optical path difference across the transition region (i.e., the optical path difference between the inner and the outer radial boundaries of the transition region) corresponds to a non-integer fraction (e.g., ½) of a design wavelength (e.g., a wavelength of about 550 nm). | 01-21-2010 |
20100016962 | Intermediate Vision with Phakic Multifocal Optics Utilizing Residual Accommodations - In one aspect, the present invention provides a method of correcting vision, which comprises determining a residual accommodation exhibited by a natural, crystalline lens of an eye, and selecting a multifocal intraocular lens (IOL), which exhibits a far-focus optical power (e.g., in a range of about −15 to about +50 Diopters (D)) and an add power (e.g., in a range of about 1 D to about 4 D), for implantation in the eye while retaining the natural lens. The add power of the IOL is selected as a function of the residual accommodation such that a combination of the IOL and the natural lens provides a visual contrast greater than about 10% at a spatial frequency of about 20 cycles/degree for viewing objects at a distance greater than about 30 cm from the eye. | 01-21-2010 |
20100036489 | LENS DESIGN AND METHOD FOR PREVENTING OR SLOWING THE PROGRESSION OF MYOPIA - A lens is provided that is capable of preventing or slowing the progression of myopia when worn by a person. The lens has a power profile that reduces on-axis and off-axis hyperopic defocus created by the optics of the eye by creating on-axis and off-axis myopic defocus. The on-axis and off-axis myopic defocus is created by providing light rays that pass through a central vision region of the optical portion and light rays that pass through a peripheral region of the optical portion an increase in positive (plus) power. The overall effect is to prevent or slow the progression of myopia without any perceptible degradation in the person's central vision. | 02-11-2010 |
20100057202 | MULTIZONAL LENS WITH EXTENDED DEPTH OF FOCUS - An intraocular lens for providing enhanced vision includes an optic having a clear aperture having an outer diameter. The optic has opposing first and second surfaces disposed about an optical axis, the first surface including a cross-sectional profile. The optic further includes central and outer zones that fill the entire clear aperture of the optic. The central zone is disposed about the optical axis having an outer diameter, the profile in the vicinity of the central zone having a constant radius of curvature or a radius of curvature that increases with increasing radius from the optical axis. The outer zone is disposed about the central zone, the profile in the outer zone having a base curvature with a base radius of curvature and a center of curvature, the profile in the outer zone characterized in that, as the distance from the optical axis increases, the distance from the center of curvature of the base curvature also increases. The central zone and the outer zone. | 03-04-2010 |
20100094414 | System and method to reduce surface contact between optic and haptic areas - Embodiments of the present invention provide an intraocular lens with an optic zone having a first surface topology and a haptic zone having a second surface topology. The surface roughness of the haptic zone may be greater than the surface roughness of the optic zone. The surface topology of the optic zone may have a first surface geometry and the surface topology of the haptic zone may have a second surface geometry. The first and second surface geometries may retain lubrication fluid in a space formed therein. The haptics formed by the manufacturing process may have a reduced ability to adhere to the optic zone, such as when the lens is folded or advanced through a cannula. | 04-15-2010 |
20100161051 | Intraocular lens with extended depth of focus - An ophthalmic lens is disclosed, one embodiment comprising an optic having an anterior surface and a posterior surface disposed about an optical axis, wherein at least one of the surfaces has a profile characterized by superposition of a base profile and an auxiliary profile, the auxiliary profile comprising a continuous pattern of surface deviations from the base profile. The auxiliary profile is a sinusoidal profile and can be amplitude modulated, frequency modulated or both amplitude and frequency modulated. The ophthalmic lens can be an IOL. | 06-24-2010 |
20100280608 | INTRAOCULAR LENS - The invention concerns an intraocular lens comprising an optical lens part which has a rear face ( | 11-04-2010 |
20100312336 | ZONAL DIFFRACTIVE MULTIFOCAL INTRAOCULAR LENS WITH CENTRAL MONOFOCAL DIFFRACTIVE REGION - An ophthalmic lens includes an optic having an anterior surface and a posterior surface. The lens also includes a monofocal diffractive structure disposed on one of said surfaces for providing a diffractive focusing power. The lens further includes at least one multifocal diffractive structure disposed on one of said surfaces for providing a plurality of diffractive focusing powers. The multifocal diffractive structure is adapted to provide chromatic aberration compensation for near vision. | 12-09-2010 |
20110046727 | INTRACORNEAL DIFFRACTIVE LENS - The invention relates to a lens that can be implanted in the cornea for correcting vision defects, such as presbyopia. It consists of a zonal diffractive lens with phase inversion that comprises an alternation of optically active or “full” annular areas ( | 02-24-2011 |
20110098811 | Phase-shifted center-distance diffractive design for ocular implant - A diffractive multifocal design for ocular implant is provided. This ocular implant includes a diffractive multifocal intraocular lens (IOL) and a number of haptics. The diffractive multifocal IOL passes optical energy to distance, intermediate and near foci. The haptics mechanically couple to the diffractive multifocal IOL in order to position and secure the diffractive multifocal IOL within the eye. The diffractive multifocal IOL may include both a diffractive region and a refractive region, the diffractive multifocal IOL operable to phase shift optical energy such that constructive interference occurs within the diffractive region and the refractive region. | 04-28-2011 |
20110118836 | MARK FOR INTRAOCULAR LENSES - An intraocular lens for providing vision to an animal or human subject has anterior and posterior sides. The lens includes an optic body, one or more haptics, and one or more marks. Each mark has four or more features disposed along an imaginary line when viewed from the anterior side and/or the posterior side. The mark(s) may be used as an aid in angularly aligning the lens during use. | 05-19-2011 |
20110125261 | ADJUSTABLE MULTIFOCAL INTRAOCULAR LENS SYSTEM - An adjustable multifocal intraocular lens system for an individual's eye, includes a base multifocal intraocular lens having an optic with an optical axis, a peripheral edge, a multifocal optical power anterior surface and a posterior surface along with an attachment for maintaining said base multifocal lens in the individual's eye with the optical axis centered along an eye optical axis. An enhanced multifocal intraocular lens is provided with an optic with a peripheral edge, an anterior surface and a reverse multifocal optical power posterior surface, and a coupling enables assembly of the base lens and enhance lens with the enhance lens posterior surface overlaying the base lens anterior surface in order that the enhance intraocular lens reverse multifocal surface adjust multifocal powers of the base IOL by substantially masking near power of the base multifocal intraocular lens. | 05-26-2011 |
20110166652 | TORIC LENS WITH DECREASED SENSITIVITY TO CYLINDER POWER AND ROTATION AND METHOD OF USING THE SAME - A method, system and apparatus for vision correction are disclosed. The method, system and apparatus include a toric intraocular element for correcting astigmatism and having a cylinder power, and a depth of focus extender coupled to the toric intraocular element, the depth of focus extender extending a depth of focus. The extended depth of focus may reduce sensitivity of the toric intraocular element to at least one of rotation and selected cylinder power. | 07-07-2011 |
20120029631 | OPHTHALMIC LENS WITH OPTICAL SECTORS - The invention relates to an ophthalmic lens comprising a main lens part, a recessed part, an optical centre, and an optical axis through said optical centre, said main lens part having at least one boundary with said recessed part, said main lens part having an optical power of between about −20 to about +35 dioptre, said recessed part positioned at a distance of less than 2 mm from said optical centre and comprising a near part having a relative dioptre of about +1.0 to about +5.0 with respect to the optical power of said main lens part, said boundary or boundaries of said recessed lens part with said main lens part form a blending part or blending parts, are shaped to refract light away from said optical axis, and have a curvature resulting in a loss of light, within a circle with a diameter of 4 mm around said optical centre, of less than about 15%. | 02-02-2012 |
20120143326 | MULTIFOCAL LENS HAVING AN OPTICAL ADD POWER PROGRESSION, AND A SYSTEM AND METHOD OF PROVIDING SAME - An apparatus, system and method including an ophthalmic lens having an optic with an anterior surface, a posterior surface, and an optical axis. The ophthalmic lens further includes a first region having a first optical power and a second region having a second optical power. The ophthalmic lens further includes a third region having an optical power that progresses from the first optical power to the second optical power. The progression may be uniform or non-uniform. Each of the first, second and progression optical power may include a base power and an optical add power. Each of the first, second and progression regions may provide a first focus, a second focus and a plurality of third foci, respectively. | 06-07-2012 |
20120165932 | REFRACTIVE-DIFFRACTIVE LENS - A multifocal lens device is disclosed. The device comprises a lens body being formed with a plurality of concentric annular zones separated by slanted steps. The concentric zones effect both diffraction and refraction of incident light, while the steps are substantially devoid of any diffractive or refractive power. | 06-28-2012 |
20120271413 | ACCOMMODATION COMPENSATION SYSTEMS AND METHODS - Methods and systems for obtaining an ocular aberration measurement of an eye of a patient are provided. Exemplary techniques involve obtaining a first induced metric for the eye that corresponds to a first accommodation state of the eye, obtaining a second induced metric for the eye that corresponds to a second accommodation state of the eye, and determining a natural metric of the eye based on the first and second induced metrics. An induced metric may include a pupil size or a spherical aberration. Techniques can also include determining a target metric for the eye base on the natural metric, determining whether an actual metric of the eye meets the target metric, obtaining an ocular aberration measurement of the eye if the actual metric meets the target metric, and determining a treatment for the eye based on the ocular aberration measurement. | 10-25-2012 |
20120283825 | INTRAOCULAR LENS. - The invention relates to an intraocular lens ( | 11-08-2012 |
20120290085 | EXTENDED DEPTH OF FOCUS (EDOF) LENS TO INCREASE PSEUDO-ACCOMMODATION BY UTILIZING PUPIL DYNAMICS - In one aspect, the present invention provides an ophthalmic lens (e.g., an IOL) that includes an optic having an anterior surface and a posterior surface disposed about an optical axis. At least one of the surfaces (e.g., the anterior surface) has a profile characterized by superposition of a base profile and an auxiliary profile. The auxiliary profile can include an inner region, an outer region and a transition region between the inner and the outer regions, where an optical path difference across the transition region (i.e., the optical path difference between the inner and the outer radial boundaries of the transition region) corresponds to a non-integer fraction (e.g., ½) of a design wavelength (e.g., a wavelength of about 550 nm). | 11-15-2012 |
20130226294 | Ophthalmic Devices, Systems, And Methods For Optimizing Peripheral Vision - The present invention relates to devices, systems, and methods for optimizing peripheral vision. In particular, methods are disclosed which include utilizing particular characteristics of the retina in optimizing peripheral vision. Additionally, various IOL designs, as well as IOL implantation locations, are disclosed which optimize peripheral vision. | 08-29-2013 |
20130253644 | TORIC INTRAOCULAR LENS WITH MODIFIED POWER CHARACTERISTICS - An intraocular lens for correcting or reducing the astigmatism of a cornea includes an optical element that has optical properties and characteristics that make it tolerant of rotational misalignment, when compared to a comparable lens having a uniform astigmatism orientation across its entire optical element, leading to more relaxed tolerances for a surgeon that implants the lens. The optical element of the toric ophthalmic lens has meridians associated therewith, including a high power meridian and a low power meridian orthogonal to the high power meridian. The optical element has at least one radially modulated meridian along which power monotonically varies with increasing radial position. | 09-26-2013 |
20130297017 | INTRAOCULAR LENS PROVIDED FOR IMPLANTATION INTO AN EYE AND DEVICE FOR CHANGING THE OPTICAL EFFECT OF AN IMPLANTED INTRAOCULAR LENS - An intraocular lens provided for implantation into an eye, includes a lens body having a central region, haptics for holding the intraocular lens in place within the eye after implantation, and an activatable zone outside the central region. After implantation of the intraocular lens into the eye, the lens body is deformed in the central region and/or at least one of the position, the rotation or the tilt of the intraocular lens within the eye changes upon irradiating only the activatable zone with laser radiation. | 11-07-2013 |
20130317608 | ACCOMMODATING INTRAOCULAR LENSES AND ASSOCIATED SYSTEMS, FRAMES, AND METHODS - An intraocular lens for providing accommodative vision to a subject includes a frame disposed about an optical axis, a first optical element, a second optical element, and a connecting element operably coupling the frame to the optical elements. The frame comprises an anterior frame element and a posterior frame element. The connecting element is configured to convert a first displacement between the frame elements in a direction that is substantially parallel to the optical axis into a second displacement between the optical elements that is substantially perpendicular to the optical axis. The second displacement may be translational and/or rotation. In some embodiments, the optical elements are two varifocal lenses. | 11-28-2013 |
20130331936 | INTRAOCULAR IMPLANT - An embodiment of the intraocular implant includes two portions, a single-focus or multi-focus optical central portion, and a haptic peripheral portion. The haptic peripheral portion is formed of two extensions extending diametrically with respect to the optical central portion, aimed at immobilizing the implant in the capsular bag by applying their end portions against the edges of the capsular bag, on the inner side thereof. The extensions forming the haptic portion each extend along a plane that is inclined with respect to the main plane of symmetry of the optic portion, and according to inclinations in opposite directions. | 12-12-2013 |
20140039616 | INTRAOCULAR LENS AND MANUFACTURING METHOD THEREOF - Provided is an intraocular lens having a novel structure with high utility which is easy to adapt to patients, and can improve quality of vision (QOV). In an intraocular lens, an optical characteristic is set rotationally symmetric around an optical axis, and a spherical aberration of a size corresponding to a coma aberration remaining in a patient's eye after extraction of a human lens of the eye is set. | 02-06-2014 |
20140074233 | Haptic Combinations for Accommodating Intraocular Lenses - The invention relates to a haptic combination for accommodating an intraocular lens comprising at least one optical element ( | 03-13-2014 |
20140135920 | Hydrophilicity Alteration System and Method - A system/method allowing hydrophilicity alteration of a polymeric material (PM) is disclosed. The PM hydrophilicity alteration changes the PM characteristics by decreasing the PM refractive index, increasing the PM electrical conductivity, and increasing the PM weight. The system/method incorporates a laser radiation source that generates tightly focused laser pulses within a three-dimensional portion of the PM to affect these changes in PM properties. The system/method may be applied to the formation of customized intraocular lenses comprising material (PLM) wherein the lens created using the system/method is surgically positioned within the eye of the patient. The implanted lens refractive index may then be optionally altered in situ with laser pulses to change the optical properties of the implanted lens and thus achieve optimal corrected patient vision. This system/method permits numerous in situ modifications of an implanted lens as the patient's vision changes with age. | 05-15-2014 |
20140155999 | LENSES, SYSTEMS AND METHODS FOR PROVIDING BINOCULAR CUSTOMIZED TREATMENTS TO CORRECT PRESBYOPIA - An apparatus, such as lenses, a system and a method for providing custom ocular aberrations that provide higher visual acuity. The apparatus, system and method include inducing rotationally symmetric aberrations along with an add power in one eye and inducing non-rotationally symmetric aberrations along with an add power in the other eye to provide improved visual acuity at an intermediate distance. | 06-05-2014 |
20140172091 | OPHTHALMIC LENS WITH OPTICAL SECTORS - An ophthalmic lens comprising a main lens part, a recessed part, an optical centre, and an optical axis through the optical centre, the main lens part having at least one boundary with the recessed part, the main lens part having an optical power of between about −20 to about +35 dioptre, the recessed part positioned at a distance of less than 2 mm from the optical centre and including a near part having a relative dioptre of about +1.0 to about +5.0 with respect to the optical power of the main lens part, the boundary or boundaries of the recessed lens part with the main lens part form a blending part or blending parts, are shaped to refract light away from the optical axis, and have a curvature resulting in a loss of light, within a circle with a diameter of 4 mm around the optical centre, of less than about 15%. | 06-19-2014 |
20140350672 | Intraocular Lens with Extended Depth of Focus - An ophthalmic lens is disclosed, one embodiment comprising an optic having an anterior surface and a posterior surface disposed about an optical axis, wherein at least one of the surfaces has a profile characterized by superposition of a base profile and an auxiliary profile, the auxiliary profile comprising a continuous pattern of surface deviations from the base profile. The auxiliary profile is a sinusoidal profile and can be amplitude modulated, frequency modulated or both amplitude and frequency modulated. The ophthalmic lens can be an IOL. | 11-27-2014 |
20140358225 | POSTERIOR CHAMBER INTRAOCULAR LENS - The present invention relates to a posterior chamber intraocular lens (IOL), comprising: an optic consisting of an effective optical area and an effective optical area edge; at least two haptics connected to the optic, wherein a posterior surface of the effective optical area is a convex surface, and a basic spherical surface thereof has a radius of curvature in a range of 6.6 mm-80.0 mm. The effective optical area of the posterior chamber IOL adopts a design with the posterior surface obviously convex, which reduces the distance between the posterior surface of the effective optical area of the IOL and the posterior capsule, improves the stability of a spatial position of the IOL in a capsule bag, and reduces an incidence rate of posterior capsule opacification (PCO) after implantation of the IOL; since the effective optical area anterior surface is relatively flat, the IOL haptics will not be tightly pressed on the effective optical area anterior surface upon folding, the haptics are more easily unfolded after implantation into the eye and the support haptics are not mutually adhered to the effective optical area, and meanwhile the IOL imaging quality can be improved and/or the visual quality of the astigmatism sufferer is enhanced. | 12-04-2014 |
20140371850 | LIMITED ECHELETTE LENS, SYSTEMS AND METHODS - An ophthalmic lens with a circular surface structure and limited adjacent echelettes that provides enhanced image quality across an extended range of foci. | 12-18-2014 |
20160157994 | EYE LENS WITH A SPECIFICALLY SHAPED TRANSITION REGION OF AN OPTICAL PART - An eye lens includes an optical part, which defines a first optical surface. The first optical surface is configured as turn with a pitch extending circumferentially about a principal axis (A) of the eye lens. A transition region is formed between a beginning and an end of the turn, which with a beginning edge and an end edge merges into the turn. The beginning edge extends between the principal axis (A) and a first circumferential location and the end edge extends between the principal axis (A) and a second circumferential location. The beginning edge projected into a plane (H) perpendicular to the principal axis (A) has a non-linear course and/or the end edge projected into a plane (H) perpendicular to the principal axis (A) has a non-linear course. | 06-09-2016 |
623600280 | Concentric zones | 9 |
20100100178 | Multifocal Intraocular Lens - An intraocular lens for providing a subject with vision at various distances includes an optic having a first surface with a first shape, an opposing second surface with a second shape, a multifocal refractive profile, and one or more diffractive portions. The optic may include at least one multifocal diffractive profile. In some embodiments, multifocal diffractive and the multifocal refractive profiles are disposed on different, distinct, or non-overlapping portions or apertures of the optic. Alternatively, portions of the multifocal diffractive profiles and the multifocal refractive profiles may overlap within a common aperture or zone of the optic. | 04-22-2010 |
20120059464 | MICROINCISION LENS - A foldable lens comprises an outer refractive surface portion comprising a first plurality of convexly curved refractive profile regions having positive optical power to converge light energy with refraction toward a focus on the retina. The convexly curved refractive profile regions of the outer region may correspond to at least about a quarter of the refractive power of the lens, such that the lens thickness is decreased substantially and the folded lens can fit through a small incision. The outer refractive surface portion focuses light with refraction, in focus images viewed through the outer portion of the lens can appear sharp to the patient. The outer refractive surface portion also comprises a second plurality of concavely curved refractive profile regions having negative optical power disposed between the first plurality, so as to diverge the light energy substantially away from the focus on the retina, such that visual artifacts are inhibited. | 03-08-2012 |
20120253458 | MULTIFOCAL ACCOMMODATING INTRAOCULAR LENS - An intraocular lens for providing accommodative vision includes an adjustable optic and a haptic that is operably coupled to the optic. The adjustable optic comprises a central zone and an annular zone surrounding the central zone. The optic may also comprise additional annular zones. The haptic comprises a transparent portion protruding into the adjustable optic. The intraocular lens has a disaccommodative configuration in which the central zone has a base optical power and an accommodative configuration in which the central zone has an add optical power that is at least about 1 Diopter greater than the base optical power. The central zone and the annular zone have different optical powers when the adjustable intraocular lens is in the accommodative configuration and/or when the adjustable intraocular lens is in the disaccommodative configuration. | 10-04-2012 |
20140067060 | OPHTHALMIC LENS HAVING ENHANCED OPTICAL BLENDING ZONE - An intraocular lens with a lens comprises a main lens part having a main lens surface and a main optical axis defining radial, tangential and axial directions; and a recessed part having a recess surface and extending between said main optical axis and a circumference of said lens, the recessed part comprising a secondary lens part with a secondary lens surface having a positive relative optical power with respect to an optical power of said main lens surface. The main lens surface extends in an outward radial direction towards a main lens outer circumference section remote from said the optical axis. The main lens outer circumference section and the main lens surface define an imaginary main lens outer circumference section that would have at least partially provided a main lens outer circumference together with the main lens outer circumference section in case the recessed part would have been absent; and an imaginary main lens surface section that would have been part of the main lens surface in case said recessed part would have been absent, the recess surface being recessed with respect to the imaginary main lens surface section. The recessed part extends in an outward radial direction to an outer recess boundary remote from said main optical axis, the outer recess boundary extending along or beyond said imaginary main lens outer circumference section as seen in an outward radial direction. | 03-06-2014 |
20140243972 | Intraocular lens - Intraocular lens for insertion into the human eye includes an optic having a posterior surface for facing towards the posterior chamber of the human eye; an anterior surface for facing away from the posterior chamber of the human eye, the anterior surface being at least substantially convex; a main lens formed by corresponding surface sections of the anterior and posterior surfaces, the main lens having an optical axis and a base optical power; and an additional surface section at a distance from the optical axis, the additional surface section including at least one additional section part providing for an optical power different from the base optical power. The posterior surface is substantially flat or at least substantially concave, and includes a substantially flat or at least substantially concave main posterior surface section, the main lens being formed by the anterior surface and the main posterior surface section. | 08-28-2014 |
20150297343 | IMPROVED INTRAOCULAR LENS AND CORRESPONDING MANUFACTURING METHOD - An intraocular lens has an optical axis, a central zone and a peripheral zone which are substantially symmetrical with respect to the optical axis and which extend substantially perpendicular thereto, the central zone extending to a first distance, and the peripheral zone extending from the first distance to the end of the intraocular lens, wherein the central zone has a nominal optical power, and the peripheral zone has a radius of curvature which varies continuously and monotonously as a function of the distance to the optical axis, so that a target asphericity value is obtained at a second distance relative to the optical axis, the first distance and the second distance being calculated from a photopic pupil diameter and a mesopic pupil diameter, respectively, of a patient. | 10-22-2015 |
20160128827 | ACCOMMODATING INTRAOCULAR LENS PROVIDING PROGRESSIVE POWER CHANGE - An accommodating intraocular lens for providing a range of accommodative vision includes a deformable optic. The deformable optic includes a plurality of layers that have a progressively increasing hardness and/or refractive index characteristic from the outermost layer to the innermost layer to provide a range of accommodative power. | 05-12-2016 |
20180021126 | DIFFRACTIVE-REFRACTIVE LENS | 01-25-2018 |
20190142577 | INTRAOCULAR LENS AND ASSOCIATED DESIGN AND MODELING METHODS | 05-16-2019 |
623600300 | Diffractive multifocal lens | 8 |
20090240328 | MULTIFOCAL INTRAOCULAR LENS - A multifocal intraocular lens is provided having two external refractive surfaces and a longitudinal axis, and a diffractive structure superimposed on one of the surfaces in the form of a Fresnel zone. To reduce eye traumatism during surgery, to shorten post-surgical time period, to increase visual acuity, and to ensure a constant quality image at any distance from an object, a multifocal intraocular lens is proposed in which at least one additional refractive surface is inserted between the two external refractive surfaces, wherein the at least one additional refractive surface divides the lens volume into zones made of materials having different refraction coefficients. | 09-24-2009 |
20100161048 | Radially segmented apodized diffractive multifocal design for ocular implant - A radially segmented apodized diffractive multifocal IOL for ocular implant is provided. The ocular implant can comprise a radially segmented apodized diffractive multifocal intraocular lens optic and a number of haptics. The radially segmented apodized diffractive multifocal IOL may pass optical energy in both photopic and mesopic conditions. The radially segmented apodized diffractive multifocal IOL includes a number of radially segmented apodization zones, each radially segmented apodization zones having a unique focal length. The haptics mechanically couple to the apodized diffractive multifocal IOL optic in order to position and secure the apodized diffractive multifocal IOL within the eye. The radially segmented apodized diffractive multifocal IOL may include both a diffractive region and a refractive region. | 06-24-2010 |
20100286771 | Intra-ocular device with multiple focusing powers/optics - An intraocular lens device that includes an intraocular lens optics that provides at least two powers of magnification one being near vision power and the other being distance vision power. The lens optics has surface modulations that are responsible for providing the near vision power. The zone structure provides an add power of over 6 diopters. The add power indicative of an extent that the near vision focusing power is greater than the distance vision focusing power. | 11-11-2010 |
20110022170 | Truncated diffractive intraocular lenses - In one aspect, the present invention provides a method of designing a diffractive ophthalmic lens (e.g., an intraocular lens (IOL)) that includes providing an optic having an anterior refractive surface and a posterior refractive surface, wherein the optic provides a far-focus power (e.g., in a range of about 18 to about 26 Diopters (D)). A truncated diffractive structure can be disposed on at least one of the surfaces for generating a near-focus add power (e.g., in a range of about 3 D to about 4 D). And the diffractive structure can be adjusted so as to obtain a desired distribution of optical energy between the near and far foci for a range of pupil sizes. | 01-27-2011 |
20120029630 | MULTIFOCAL OPHTHALMIC LENS - A method of designing a multifocal ophthalmic lens with one base focus and at least one additional focus, capable of reducing aberrations of the eye for at least one of the foci after its implantation, comprising the steps of: (i) characterizing at least one corneal surface as a mathematical model; (ii) calculating the resulting aberrations of said corneal surface(s) by employing said mathematical model; (iii) modelling the multifocal ophthalmic lens such that a wavefront arriving from an optical system comprising said lens and said at least one corneal surface obtains reduced aberrations for at least one of the foci. There is also disclosed a method of selecting a multifocal intraocular lens, a method of designing a multifocal ophthalmic lens based on corneal data from a group of patients, and a multifocal ophthalmic lens. | 02-02-2012 |
20130090730 | MULTIFOCAL INTRAOCULAR LENS - An intraocular lens for providing a subject with vision at various distances includes an optic having a first surface with a first shape, an opposing second surface with a second shape, a multifocal refractive profile, and one or more diffractive portions. The optic may include at least one multifocal diffractive profile. In some embodiments, multifocal diffractive and the multifocal refractive profiles are disposed on different, distinct, or non-overlapping portions or apertures of the optic. Alternatively, portions of the multifocal diffractive profiles and the multifocal refractive profiles may overlap within a common aperture or zone of the optic. | 04-11-2013 |
20130345806 | MULTIFOCAL OPHTHALMIC LENS - A method of designing a multifocal ophthalmic lens with one base focus and at least one additional focus, capable of reducing aberrations of the eye for at least one of the foci after its implantation, comprising the steps of: (i) characterizing at least one corneal surface as a mathematical model; (ii) calculating the resulting aberrations of said corneal surface(s) by employing said mathematical model; (iii) modelling the multifocal ophthalmic lens such that a wavefront arriving from an optical system comprising said lens and said at least one corneal surface obtains reduced aberrations for at least one of the foci. There is also disclosed a method of selecting a multifocal intraocular lens, a method of designing a multifocal ophthalmic lens based on corneal data from a group of patients, and a multifocal ophthalmic lens. | 12-26-2013 |
20140172088 | METHOD AND SYSTEM FOR PROVIDING AN INTRAOCULAR LENS HAVING AN IMPROVED DEPTH OF FIELD - A method and system provide an ophthalmic device. The ophthalmic device includes an ophthalmic lens having an anterior surface, a posterior surface, an optic axis and at least one diffractive grating pattern. The diffractive grating pattern(s) are disposed on at least one of the anterior surface and the posterior surface. The diffractive grating pattern(s) includes zones corresponding to distance ranges from the optic axis. Each of the zones has a plurality of echelettes having a radius of curvature corresponding to a focal length. The radius of curvature for each of at least a portion of the zones is different from the radius of curvature for another of the zones. | 06-19-2014 |