Abstract: A two-part accommodating intraocular lens (IOL) device for implantation in a capsular bag of a patient's eye. The IOL device includes a primary lens assembly and a power changing lens. The primary lens assembly includes a fixed lens and a peripherally disposed centration member. The centration member has a circumferential distal edge and a first coupling surface adjacent the circumferential distal edge. The power changing lens has an enclosed, fluid- or gel-filled lens cavity and haptic system disposed peripherally of the lens cavity. The haptic system has a peripheral engaging edge configured to contact the capsular bag and a second coupling surface. The first and second coupling surfaces are in sliding contact with one another to permit movement of the power changing lens relative to the primary lens assembly and also to maintain a spaced relationship between the fixed lens and the lens cavity during radial compression of the power changing lens.

Abstract: Disclosed is an accommodating intraocular lens device for treatment of an eye including a stabilization haptic (120) configured to be positioned within a region of an eye and a lens body having a sealed chamber containing a fixed volume of optical fluid. The lens body includes a shape changing membrane (145) configured to outwardly bow in a region surrounding the optical axis of the eye; a shape deformation membrane configured to undergo displacement relative to the first shape changing membrane; and a static element (150). An inner surface of the shape changing membrane, an inner surface of the shape deformation membrane and an inner surface of the static element collectively form the sealed chamber. The lens device also includes a force translation arm (115) having a first end configured to contact an outer surface of the shape deformation membrane of the lens body and a second end configured to engage a ciliary structure of the eye.

Abstract: An intraocular lens (IOL) device comprising a first lens, a second lens and a circumferential haptic. The first lens comprises a pair of opposing and deformable surfaces and a cavity defined therebetween. The first lens has a first lens diameter. The second lens has a second lens diameter. The circumferential haptic has an outer peripheral edge and couples the first lens and the second lens. A main IOL cavity is defined by the circumferential haptic, the first lens and the second lens. The IOL device is resiliently biased to an unaccommodated state, characterized by the IOL device having a first diameter d1 in the absence of radial compressive forces exerted on the outer peripheral edge. The IOL device actuates to an accommodated state being characterized by a second diameter d2 in response to radial compressive forces exerted on the outer peripheral edge, wherein d1>d2.

Abstract: The present disclosure concerns a curvature-changing, accommodative intraocular lens (IOL) for implantation in the capsular bag of a patient's eye. The IOL includes a fluid optic body having a cavity for containing an optical fluid, the cavity at least partially defined by a sidewall extending around the cavity and defining a diameter of the cavity and a deformable optical membrane intersecting the sidewall around a circumference of the sidewall and spanning the diameter of the cavity. The IOL further includes a second optic body spaced a distance apart from the fluid optic body and a plurality of struts extending from the sidewall and coupling the fluid optic body to the second optic body. The struts are configured such that axial compression of the capsular bag causes the struts to deform the sidewall in a manner that increases the diameter of the cavity, modifying a curvature of the deformable optical membrane.

Abstract: The present disclosure concerns a curvature-changing, accommodative intraocular lens (IOL) that may be implanted in the capsular bag of a patient's eye and is configured to harness the energy of the movement of the capsular bag upon contraction and relaxation of the ciliary muscles. In certain embodiments, the IOL includes a fluid optic body defining a cavity for containing an optical fluid, the cavity at least partially defined by a first optical membrane configured to extend across an optical axis of the patient's eye. The IOL further includes a plurality of lever arms extending from the optic body and configured to be in contact with the capsular bag such that axial compression of the capsular bag causes each of the plurality of lever arms to rotate about a corresponding pivot so as to modify a curvature of the first optical membrane.

Abstract: A multifocal ophthalmic lens includes an ophthalmic lens and a diffractive element. The ophthalmic lens has a base curvature corresponding to a base power. The diffractive element produces constructive interference in at least four consecutive diffractive orders corresponding a range of vision between near and distance vision. The constructive interference produces a near focus, a distance focus corresponding to the base power of the ophthalmic lens, and an intermediate focus between the near focus and the distance focus. A diffraction efficiency of at least one of the diffractive orders is suppressed to less than ten percent.

Abstract: 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.

Abstract: 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.

Abstract: An accommodative intraocular lens having a soft deformable resilient inner lens portion or core with an exposed anterior inner optic surface and exposed posterior optic surface, the surfaces responsively becoming simultaneously optically steeper and moving axially away from each other. The exposed anterior and posterior surfaces of the inner lens portions may be spherically shaped or aspherically shaped and the shape of the outer lens portion may be spherically or aspherically shaped.

Abstract: 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.

Abstract: A contact lens or phakic IOC lens is provided with a peripheral portion that has a power profile that provides optical control of peripheral vision images. Typically, the central portion of the lens is also provided with optical control. The power profile of the lens at the boundary of the central and peripheral portions meets certain boundary conditions that ensure that the lens provides a desired or selected vision correction. Because the peripheral portion of the lens provides optical control that defocuses the peripheral vision image relative to the retina, the lens can be used to prevent or inhibit growth of the eye, thereby preventing or inhibiting myopia or the effects of myopia.

Abstract: An intraocular lens is disclosed, which includes a diffractive element with a relatively low add power. The add power may be less than about 2 Diopters, may be less than about 1 Diopter, or may be in the ranges of 0.5 to 2.5 Diopters, or 1.0 to 2.0 Diopters, or 1.5 to 2.0 Diopters, or 1.0 to 1.5 Diopters. The low-add-power diffractive element increases the depth of the focus of the intraocular lens, for example, compared to a similarly shaped intraocular lens without the diffractive element. In one embodiment, the depth of focus is defined in terms of a threshold MTF value at a particular spatial frequency. The threshold may be an absolute threshold, such as 0.10, 0.15, 0.17, 0.20, 0.25 or 0.30, or may be a relative threshold, such as a particular percentage of the peak value. The spatial frequency may be 25 line pairs per mm, 50 line pairs per mm, 100 line pairs per mm, or any suitable value.

Abstract: 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.

Abstract: The invention provides ophthalmic lenses useful in preventing myopia progression. The lenses of the invention provide substantially constant distance vision power zone in the center of the optic zone surrounded by a zone that provides positive longitudinal spherical aberration.

Abstract: 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.

Abstract: 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.

Abstract: An intraocular lens in which deterioration in contrast is suppressed even when the optical axis of the intraocular lens is decentered from the optical axis of the eyeball when the intraocular lens is inserted into the eye while the advantage of a conventional aberration reduction type intraocular lens that the image is seen clearly is sustained by employing such a power distribution as respectively having at least one positive power deviation region (E1) having a power larger than that represented by the reference power distribution and at least one negative power deviation region (E2) having a power smaller than that represented by the reference power distribution in the central region of the intraocular lens assuming that a power distribution being set to cancel the spherical aberration of cornea when the intraocular lens is inserted into the eye is the reference power distribution.

Abstract: An intraocular lens (1) including an anterior surface (4) and a posterior surface (5) and having a substantially antero-posterior optical axis (6). In this lens, one of these anterior and posterior surfaces includes a first diffractive profile (9) forming at least one first diffractive focal point (11) of order +1 on said optical axis, and a second diffractive profile (10) forming a second diffractive focal point (12) of order +1 on said optical axis which is distinct from the first diffractive focal point of order +1. At least one portion of said second diffractive profile is superposed to at least one portion of the first diffractive profile.

Abstract: 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).

Abstract: A method of manufacturing an aphakic intraocular lens that is capable of ensuring every multi-focusing effect more securely, while reducing the impact of aperture changes and lens eccentricity. At least two reliefs whose first order diffracted lights give respective focal distances different from one another are set to overlap with each other in at least a part of an area in a radial direction of the lens, and with respect to every grating pitches of one relief having a maximum grating pitch among the reliefs set up in overlap, grating pitches of another relief are overlapped periodically in order to obtain a relief pattern, so that the resulting relief pattern is formed on a lens surface.

Abstract: 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.

Abstract: 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.

Abstract: Mutifocal diffractive lenses are generally designed with concentric annular zones comprising blazed steps of equal area. Trifocal diffractive lenses differ in the intensity of light that they diffract into each of their three different powers. Usually, this light distribution has been adjusted by varying the step heights of the blazed steps within the annular zones. This invention discloses a trifocal diffractive lens wherein the equal area annular zones are further subdivided into two sub-zones wherein each sub-zone comprises a discrete blazed step. The sub-zones of this invention may be of unequal area. This allows the light distribution at its focal powers to be adjusted by varying not only the step heights of the blazed steps of the sub-zones, but also the relative areas of the sub-zones. The present invention allows for an increased flexibility in the design of multifocal diffractive lenses.

Abstract: 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).

Abstract: An intraocular lens comprises an optical element adapted to be implanted within the capsular bag of a human eye. The optical element includes one or more internal layers formed by one or more planes that are moveable relative to one another in order to effect the power of the optical element.

Abstract: 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.

Abstract: A multifocal ophthalmic lens, including: a far zone for correcting a far vision; and a near zone for correcting a near vision, arranged concentrically in an optical region of the lens, wherein a power distribution is set to vary progressively in radial direction of the far zone and the near zone; power is altered discontinuously to have a stepwise power difference at a boundary between the far zone and the near zone, the value of the power difference at the boundary between the far zone and the near zone is not greater than a maximum value of an intermediate power for correcting an intermediate vision.

Abstract: A contact lens or phakic IOC lens is provided with a peripheral portion that has a power profile that provides optical control of peripheral vision images. Typically, the central portion of the lens is also provided with optical control. The power profile of the lens at the boundary of the central and peripheral portions meets certain boundary conditions that ensure that the lens provides a desired or selected vision correction. Because the peripheral portion of the lens provides optical control that defocuses the peripheral vision image relative to the retina, the lens can be used to prevent or inhibit growth of the eye, thereby preventing or inhibiting myopia or the effects of myopia.

Abstract: A multifocal ophthalmic lens, including: a far zone for correcting a far vision; and a near zone for correcting a near vision, arranged concentrically in an optical region of the lens, wherein a power distribution is set to vary progressively in radial direction of the far zone and the near zone; power is altered discontinuously to have a stepwise power difference at a boundary between the far zone and the near zone, the value of the power difference at the boundary between the far zone and the near zone is not greater than a maximum value of an intermediate power for correcting an intermediate vision.

Abstract: 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.

Abstract: The invention provides ophthalmic lenses useful in preventing myopia progression. The lenses of the invention provide substantially constant distance vision power zone in the center of the optic zone surrounded by a zone that provides positive longitudinal spherical aberration.

Abstract: An intraocular lens is disclosed, which includes a diffractive element with a relatively low add power. The add power may be less than about 2 Diopters, may be less than about 1 Diopter, or may be in the ranges of 0.5 to 2.5 Diopters, or 1.0 to 2.0 Diopters, or 1.5 to 2.0 Diopters, or 1.0 to 1.5 Diopters. The low-add-power diffractive element increases the depth of the focus of the intraocular lens, for example, compared to a similarly shaped intraocular lens without the diffractive element. In one embodiment, the depth of focus is defined in terms of a threshold MTF value at a particular spatial frequency. The threshold may be an absolute threshold, such as 0.10, 0.15, 0.17, 0.20, 0.25 or 0.30, or may be a relative threshold, such as a particular percentage of the peak value. The spatial frequency may be 25 line pairs per mm, 50 line pairs per mm, 100 line pairs per mm, or any suitable value.

Abstract: The invention relates to a multifocal phakic intraocular lens having three focal regions having varying radii of curvature. When properly structured and placed, the lenses of the invention provide near, far and intermediate vision. The lens may also comprise a fenestration which permits flow of aqueous through the fenestration to provide nutrition to the anterior lens epithelium as well as the corneal endothelium.

Abstract: A multi-zonal monofocal opthalmic lens comprises an inner zone, an intermediate zone, and an outer zone. The inner zone has a first optical power. The intermediate zone surrounds the inner zone and has a second optical power that is different from the first power by a magnitude that is less than at least about 0.75 Diopter. The outer zone surrounds the intermediate zone and has a third optical power different from the second optical power. In certain embodiments, the third optical power is equal to the first optical power.

Abstract: An intraocular lens for modifying the refractive abilities of a natural lens or an existing artificial lens in an eye to correct for vision disorders such as presbyopia, myopia, hyperopia or astigmatism. Specifically, the lens system can be configured so that it does not effect far vision, while effecting near vision using a plus lens to correct for presbyopia. The lens system includes a lens portion and fastening members, with the lens portion being movably secured to at least one of the fastening members so that the position of the lens portion can be modified with respect to the optical axis, and the overall length of the lens system can be increased or decreased.

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.

Abstract: An intraocular lens system for implantation in the eye to modify the lens system of the eye comprising the cornea and the natural or existing artificial lens in the eye, and a method for using the same. The system and method comprises a lens having a high minus portion, adapted to be implanted in the eye to create a lens system that functions as a teledioptic lens system which, when used without an external lens, provides unmagnified and peripherally unrestricted vision and which, when used with an external lens, provides magnified and peripherally restricted vision to correct for macular degeneration. The lens can be attached to the iris, to a portion of the iris that was removed by iridectomy, or can be implanted in the cornea. The lens can also include a plus portion that is surrounded by the high minus portion.

Abstract: Multifocal and single focus lenses are defined by nonconical aspheric optical surfaces. Various alternative surface shapes provide one or more vision regions bounded by optical steps. Each optical step has rapidly and smoothly changing power in the radial direction which creates an induced aperture through which the cortical elements of the human vision system are induced to concentrate. The induced aperture results in increased clarity and enhanced vision. In various configurations, the induced aperture decreases spherical aberration to further enhance vision. To increase correction intensity at one or more powers, redundant power regions are provided in repeated optical steps or annular apertures. In several embodiments, the redundant power regions create multiple induced apertures at one or more optical powers directed at one or more vision distances.

Abstract: A method for correcting vision of an eye, including the steps of separating a portion of the cornea to form first and second internal surfaces in the cornea, and then placing at least one microscopic lens in between the first and second internal surfaces in the cornea, so that the external surface of the cornea is not substantially displaced. In a preferred embodiment, the microscopic lenses can be placed in concentric circles around the main optical axis so that the lenses form multifocal or bifocal vision.

Abstract: A deformable, artificial intraocular contact lens for implantation into the human eye to correct normal-vision problems. The lens may be positioned posteriorly from the iris, resting against the anterior surface of the posterior capsule's natural lens. Alternatively, the lens may be positioned in the anterior chamber of the eye. The implanted lens works in conjunction with the cornea and natural lens to provide proper vision, as a substitute for regular contact lens, spectacles, and radial keratotomy. The lens may be designed from a rigid or semi-rigid material. Due to the thinness of the structure, the lens may be rolled and inserted into the eye, minimizing both the length of the corneal incision and the stretching of the cornea.

Abstract: An intraocular lens with an optical lens part, which has a central lens area and at least one further annular lens area surrounding the central lens area, the central lens area and the at least one annular lens area forming at least one common focus and the annular lens area having concentric annular zones, in which the difference in pathlength between adjacent zones is an integral multiple of n=2 or more of the design wavelength.

Abstract: An improved opthalmic lens is disclosed which has a plurality of alternating power zones with a continuously varying power within each zone, as well as in transition from one zone to another. In other words, a plurality of concentric zones (at least two) are provided in which the variation from far to near vision correction is continuous, i.e., from near correction focal power to far correction focal power, then back to near, and again back to far, or vice versa. This change is continuous (progressive), without any abrupt correction changes, or “edges”. Two versions of the invention are disclosed. In the first version continuous, alternating power variation is accomplished by a continuously changing curvature of the lens posterior surface, thereby altering the angle of impact of light rays on the eye.

Abstract: An intraocular lens for use in a mammalian eye having a natural lens, the intraocular lens including a lens body sized and adapted for placement in the eye, and having a baseline optical power and at least one optical add power. The at least one optical add power is reduced relative to the corresponding optical power of a similar intraocular lens adapted for placement in a similar eye in which the natural lens has been removed.

Abstract: An intraocular lens system for implantation in the eye to modify the lens system of the eye comprising the cornea and the natural or existing artificial lens in the eye, and a method for using the same. The system and method comprises a lens having a high minus portion, adapted to be implanted in the eye to create a lens system that functions as a teledioptic lens system which, when used without an external lens, provides unmagnified and peripherally unrestricted vision and which, when used with an external lens, provides magnified and peripherally restricted vision to correct for macular degeneration. The lens can be attached to the iris, to a portion of the iris that was removed by iridectomy, or can be implanted in the cornea. The lens can also include a plus portion that is surrounded by the high minus portion.

Abstract: A pre-crystalline intraocular implant adapted to be implanted between the front face of the crystalline lens and the iris. It comprises an optical part (31) and a haptic part. The haptic part comprises a haptic ring (32) surrounding the optical part (31), a peripheral band (34) and branches (33) linking the haptic ring (32) and the peripheral band (34). The rear face of the implant comprises a central portion with spherical surface having a first radius, a second annular spherical portion having a radius greater that the first radius and a third concentric portion with spherical surface having a radius greater than the second radius. The invention is useful for correcting ametropia of a phakic eye.

Abstract: A multi-zonal monofocal opthalmic lens comprises an inner zone, an intermediate zone, and an outer zone. The inner zone has a first optical power. The intermediate zone surrounds the inner zone and has a second optical power that is different from the first power by a magnitude that is less than at least about 0.75 Diopter. The outer zone surrounds the intermediate zone and has a third optical power different from the second optical power. In certain embodiments, the third optical power is equal to the first optical power.

Abstract: An intraocular lens having a light-transmitting optic (32, 94a, 94b, 142, 216) comprised of a synthetic light-refractive material (40, 102) operably coupled with a flexible optic positioning member (34, 62, 74, 84, 100, 210) to refract light onto the retina in order to correct refractive errors in the eye (10). The refractive material has an index of refraction of from about 1.36 to 1.5 or higher. The optic positioning member (34, 62, 74, 84, 100, 210) is constructed of a flexible synthetic resin material such as polymethylmethacrylate and permits focusing upon objects located near to and far from the viewer. The optic (32, 94a, 94b, 142, 216) of the present invention possess greater refractive capability than optics conventionally used in IOL construction, and permits retinal receipt of the image being viewed in order to correct refractive errors.

Abstract: Ocular implant of the type comprising an optical portion to which there is connected a haptic portion arranged to position the focal axis of the optical portion off-center with respect to the geometric axis of the eye, towards the nasal side, provided for insertion into a phakic eye to correct presbyopia, its optical portion having, at least in its central region (7), a multifocal treatment constituting an addition of from +1 to +3.5 diopters, and its haptic portion (6) ensuring that the focal axis (9) of the optical portion (5) is arranged from 0 to 0.75 mm off-center when the implant is in position in the eye.

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.

Abstract: The present invention provides intra ocular lenses that have a refractive index gradient. Additionally, the lenses of the invention may be customized to correct the ocular wave front aberrations of a particular individual.