Class / Patent application number | Description | Number of patent applications / Date published |
351161000 | Multifocal | 42 |
20080212022 | SERIES OF ASPHERICAL CONTACT LENSES - The present invention provides a series of aspherical contact lenses, each lens having a first central optical zone on its anterior surface and a second central optical zone on its posterior surface. Both central optical zones are aspherical surfaces. The first central optical zone is designed to have a surface which provides a target optical power and an optical power profile selected from the group consisting of (1) a substantially constant optical power profile, (2) a power profile mimicking the optical power profile of a spherical lens with an identical targeted optical power, and (3) a power profile in which lens spherical aberration at 6 mm diameter is from about 0.65 diopter to about 1.8 diopters more negative than spherical aberration at 4 mm diameter. | 09-04-2008 |
20080218687 | Contact lens and method - Contact lenses and methods for preventing or slowing progression of myopia are described. The contact lenses include a vision correction area and a myopic defocus area. Various examples of the contact lenses are described. Methods include providing the present contact lenses, or applying one or more of the contact lenses to an eye or eyes of a person. The contact lenses and methods are particularly useful in children. | 09-11-2008 |
20080231799 | HYDRODYNAMICALLY OPERATED MULTIFOCAL CONTACT LENS - This invention pertains to a soft contact lens that has a body with a central zone aligned with the optical axis of the eye when a wearer wears the lens. A micro-channel filled with fluid, is positioned at or near the optic zone and is arranged so that when the fluid is pressurized, the micro-channel expands and changes the optical characteristics of the central zone. The pressure in the microchannel is controlled through changes to a reservoir disposed in the lens below the optic zone. | 09-25-2008 |
20080278679 | Contact lens permitting translation - The present invention describes a contact lens of sufficient vertical length when placed on an eye that the lower portion touches the lower formix of the eye when the eye rotates on a vertical axis, permitting the eye to translate through different vertical portions of the lens as it moves vertically. | 11-13-2008 |
20080291393 | OPHTHALMIC LENSES FOR PREVENTION OF MYOPIA PROGRESSION - 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. | 11-27-2008 |
20080297721 | LENS DESIGNS FOR TREATING ASTHENOPIA CAUSED BY VISUAL DEFECTS - The invention provides ophthalmic lenses that provide correction for each of refractive asthenopia, muscular asthenopia and foveal suppression. | 12-04-2008 |
20090009712 | Contact lens - A contact lens having a rotational stabilization mechanism thereon, such as prism ballast, and a thickness profile that reduces the torque imparted on the lens by the action of the eyelids, especially for stabilizing toric lenses. The prism ballast is provided on one or more portions of the anterior face of the lens such that the lens body has a uniform thickness of within 10% along horizontal cross-sections. The anterior face of the lens may be segregated into a peripheral zone, an inner zone circumscribed by the peripheral zone, and a central optic zone. The prism ballast portion is provided within the inner zone, which may be further subdivided into a superior portion, an intermediate portion proximate the optic zone, and an inferior portion. The ballast portion increases in thickness along a superior-inferior line parallel to a vertical meridian, and has a substantially uniform thickness perpendicular thereto. The peripheral zone may be tapered, and have a rounded edge. The rate of thickness change across any portion of the peripheral zone is less than about 250 μm/mm. | 01-08-2009 |
20090033864 | MULTIFOCAL CONTACT LENSES AND METHODS FOR IMPROVING VISION AND FOR PRODUCING MULTIFOCAL CONTACT LENSES - Pairs of multifocal contact lenses are described. Each contact lens of the pair includes a central area that provides substantially all of the distance vision correction of the lens, and an annular area surrounding the central area and providing intermediate vision correction and near vision correction. A pair of contact lenses can be used to correct a person's vision, especially presbyopia of an emerging presbyopic patient. Methods of producing the present pairs of contact lenses are also described. | 02-05-2009 |
20090059167 | METHOD OF DESIGNING MULTIFOCAL CONTACT LENSES - The invention provides methods for designing contact lenses that provides improved efficiency in lens design compared to conventional methods. It is a discovery of the invention that improved performance and reduced design time can be obtained by utilizing a visual performance prediction model as a part of the design process. | 03-05-2009 |
20090244478 | LENSES FOR THE CORRECTION OF PRESBYOPIA AND METHODS OF DESIGNING THE LENSES - The invention provides methods for designing contact lenses and contact lenses designed according to the method, which lenses provide an improved method for presbyopia correction compared to conventional lenses and methods. It is a discovery of the invention that improved performance and reduced design time can be obtained by using lens pairs that act synergistically to provide the lens wearer with good binocularity and consistent performance in near, intermediate and distance vision. | 10-01-2009 |
20090268155 | DIFFRACTIVE LENS EXHIBITING ENHANCED OPTICAL PERFORMANCE - The present invention provides improved ophthalmic lenses and methods for their design and use. Monofocal and multifocal diffractive ophthalmic lenses having reduced light scatter, improved light energy distribution properties, and/or other improvements in optical performance are provided. These properties are provided, at least in part, by the diffractive profiles of the invention, often having subtlety shaped echelettes with appropriately curving profiles. Smooth diffractive profiles may be used reduce light scatter. Diffractive profiles may be configured to limit the light energy in certain selected orders, thereby improving viewing quality and mitigating unwanted effects such as dysphotopsia. Diffractive profiles of may additionally or alternatively vary the light energy distributed between individual echelettes, providing additional advantages in various viewing situations. | 10-29-2009 |
20090268156 | SOFT MULTIFOCAL CONTACT LENS - A multifocal contact lens ( | 10-29-2009 |
20090279048 | ASPHERIC TORIC INTRAOCULAR LENS - An aspheric toric intraocular lens (IOL) having toricity and asphericity in a single lens. The toricity and asphericity may be provided on separate surfaces, such as an anterior surface and a posterior surface, or the toricity and asphericity may be combined onto a single surface. The edge thickness may be varied sinusoidal to maintain equal edge thickness at 45 degree meridian. | 11-12-2009 |
20090303433 | Ocular Lens - To provide an ocular lens capable of securing a stable image in a distance portion and a near portion, and suppressing a generation of blurring or ghosting of the image. A progressive multifocal far and near contact lens is provided, having a distance portion for aiding a far vision, a near portion for aiding a near vision, and an intermediate portion in which power is progressively changed between the distance portion and the near portion, and a power distribution of a lens optical region along a direction of a vertical axis N of the lens optical region is set according to the following formula (1): | 12-10-2009 |
20090303434 | SOFT CONTACT LENSES FOR TREATING AMETROPIA - A soft contact lens for treating ametropia having an optical zone, a pressure control zone, an alignment zone, and a peripheral zone. | 12-10-2009 |
20100066973 | MULTIFOCAL DIFFRACTIVE OPHTHALMIC LENS WITH MULTIFOCAL BASE SURFACE - A multifocal ophthalmic lens includes a lens element having an anterior surface and a posterior surface, a refractive zone, or base surface having produced multifocal powers disposed on one of the anterior and posterior surfaces; and a near focus diffractive multifocal zone disposed on one of the anterior and posterior surfaces. | 03-18-2010 |
20100073629 | OPHTHALMIC LENSES FOR PREVENTION OF MYOPIA PROGRESSION - 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. | 03-25-2010 |
20100134754 | ALTERNATING OPTICAL SYSTEM: MIXING AND MATCHING OPTICS TO MAXIMIZE BINOCULAR VISUAL BENEFITS - In one aspect, the present invention provides a method for correcting vision that employs two lenses, at least one of which is a multifocal lens, with different focusing characteristics for use in the two eyes of the patient. The visual performance of each lens (e.g., visual contrast or acuity) is selected in accordance with a predefined relation so as to optimize the binocular visual performance provided by the combination of the lenses. | 06-03-2010 |
20100157240 | CORRECTION OF PERIPHERAL DEFOCUS OF AN EYE AND CONTROL OF REFRACTIVE ERROR DEVELOPMENT - An ophthalmic lens series for reducing the progression of myopia through adequately correcting the peripheral retina, the series comprising more than one ophthalmic lens forming a series. Each ophthalmic lens of the series has a central power level common to the series. Each of the ophthalmic lenses of the series has one differential (peripheral minus central) power level selected from a variety of differential power levels. Providing a variety of differential power levels reduces the risk of over or under-correcting the peripheral retina of a particular eye. | 06-24-2010 |
20100171924 | CONTACT LENS - A contact lens includes at least two focal lengths, a single lower bearing surface capable of allowing the lens to be translated relative to an eye, and an area placed in the lower portion of the lens, the area having an outer face connected to a remainder of the outer face of the lens via a recess and the area having an inner face indistinguishable from the rest of an inner face of the lens, where the recess defines the lower bearing surface, and where the area is thin with an average thickness of the same order of magnitude as a thickness of an upper edge of said lens. | 07-08-2010 |
20100188636 | MULTIFOCAL OPHTHALMIC LENS HAVING REDUCED GHOSTING - An ophthalmic lens, comprising at least one optic including a first zone and a second zone having a second zone. The lens configured such that, when the lens is applied to an average eye, for objects located between infinity and a near focal plane of the average eye, an MTF of the eye's optical system has no phase reversals. | 07-29-2010 |
20100195044 | MYOPIA CONTROL OPHTHALMIC LENSES - Lenses are designed using wavefront measurements amenable to correction factors for near and far vision as well as pupil size to slow or stop myopia progression. | 08-05-2010 |
20100245760 | Accommodating or focusable contact lens - An “accommodating contact lens” or “focusable contact lens” is a contact lens comprised of a single unit lens, primarily of a rigid gas permeable material, that has one optical power ground into the lens and is fitted for the eye for clear vision at distance when the eye is in a relaxed, unaccommodated state. Unlike a standard single vision, rigid gas permeable contact lens, it has a modified anterior surface, which exists as either an excavated, concave region or heaped ridge running the entire circular midperipheral to peripheral region of the contact lens, that allows the eyelids a contact point on the lens to re-shape or move the contact lens either by squeezing or lifting it anteriorly from the eye during an attempt to accommodate or focus at near, in order to provide to the eye additional power and clear vision at intermediate or near distances. | 09-30-2010 |
20100259719 | Method and System for Determining the Orientation of an Ophthalmic Lens - A method and system for determining the orientation of an ophthalmic lens for assisting a user to readily determine the eye contacting surface of the ophthalmic lens prior to insertion into the eye. | 10-14-2010 |
20100259720 | Wearing-Orientation Selectable Contact Lens - A wearing-orientation selectable contact lens including: an optical zone; a first diopter power region provided in the optical zone; and a second diopter power region having a lens power that is more positive than that of the first diopter power region. A superficial center of the second diopter power region is decentered on a symmetrical meridian from a geometric center of the optical zone. A circumferential positioning member is provided so as to selectively set up: a first stable state where the superficial center of the second diopter power region is positioned to one of left and right side of the eye, and a second stable state where the superficial center of the second diopter power region is positioned to another of left and right side of the eye. A visible indicator mark is provided for identifying a lens orientation of the first stable state and the second stable state. | 10-14-2010 |
20100296050 | TILTED-WEAR TYPE CONTACT LENS - A contact lens including a circumferential positioning member that can selectively set up a first stable state where a superficial center of a second power zone is decentered on a symmetrical meridian from a geometrical center of an optical zone and an orthogonal meridian perpendicular to the symmetrical meridian with the lens worn on a right eye is circumferentially tilted by a first angle relative to a vertical line of the eye, and a second stable state where the orthogonal meridian under condition in which the lens is worn on a left eye with the right eye wearing state inverted upside down is circumferentially tilted by a second angle on the opposite side of the first angle relative to the vertical line, as well as a visible indicator mark for identifying a lens orientation. | 11-25-2010 |
20100302505 | LENSES FOR THE CORRECTION OF PRESBYOPIA AND METHODS OF DESIGNING THE LENSES - The invention provides methods for designing contact lenses and contact lenses designed according to the method, which lenses provide an improved method for presbyopia correction compared to conventional lenses and methods. It is a discovery of the invention that improved performance and reduced design time can be obtained by using lens pairs that act synergistically to provide the lens wearer with good binocularity and consistent performance in near, intermediate and distance vision. | 12-02-2010 |
20100328604 | MYOPIA CONTROL OPHTHALMIC LENSES - Lenses are designed using the corneal topography or wavefront measurements of the eye derived by subtracting the optical power of the eye after orthokeratology treatment from the optical power before orthokeratology treatment. | 12-30-2010 |
20110001923 | Contact lens and method for prevention of myopia progression - A method of slowing the progression of myopia in a person, comprises applying to the eye of the person contact lens or lenses each including a vision correction area for correcting in use the myopic vision of a wearer, and a myopic defocus area having a less negative focal power, to simultaneously present a controlled myopic defocus to the retina both when viewing in the distance and also when viewing at near. Contact lenses and their use are also claimed. | 01-06-2011 |
20110019148 | MULTIFOCAL DIFFRACTIVE CONTACT LENS WITH BI-SIGN SURFACE SHAPE - A contact lens for placing over the eye is described. The lens has at least one non-spherical shape surface configured with bi-sign profile to maintain lens optical advantage as compared with equivalent far power spherical lens within common clinical condition of lens movement over the cornea of the eye. | 01-27-2011 |
20110032474 | LENS HAVING AN OPTICALLY CONTROLLED PERIPHERAL PORTION AND A METHOD FOR DESIGNING AND MANUFACTURING THE LENS - 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. | 02-10-2011 |
20110037942 | UNIVERSAL CONTACT LENS POSTERIOR SURFACE CONSTRUCTION - The carrier region extending beyond the optical portion of a contact lens overlying the cornea of an eye can be modeled in one universal shape that will fit all eyes. That shape is characterized by a curve of radius of curvature versus distance from the High point which is substantially linear with a first slope below a 10 mm diameter of the eye as projected onto a plane perpendicular to the optical axis, is substantially linear above 10 mm with a second slope which is substantially greater than the first slope, and which has an inflection point in the vicinity of approximately 10 mm. Preferably the first linear portion has a radius of curvature of approximately 7.6 mm at a diameter of about 7 mm, with a slope of about 0.13 (the first slope) and a radius of curvature of about 9 mm at a diameter of 12 mm, with a slope of about 0.45 (the second slope). | 02-17-2011 |
20110085129 | METHODS AND THERAPEUTIC OPTICAL DEVICES FOR REGULATION OF ASTIGMATISM - In accordance with exemplary embodiments, the present invention provides a therapeutic optical device configured to focus the central retinal image in at least one meridian and focus at least one semi-meridian of the peripheral image field in front of or behind the retina to stimulate eye and/or corneal reshaping to reduce astigmatism. In exemplary embodiments, the device further provides rotational stability. | 04-14-2011 |
20110109874 | DIFFRACTIVE BINOCULAR LENS SYSTEMS AND METHODS - A system of ophthalmic lenses contains a first lens for a first eye of a subject and a second lens for a second eye of a subject. The first lens includes a first lens shape having a first base refractive power and a first diffractive pattern imposed on the first lens shape, the diffractive pattern having a first lower diffraction order with a first lower diffractive power and a first higher diffraction order with a first higher diffractive power. The first lens includes lower and higher optical powers equal to the first base refractive power plus the first lower and higher diffractive powers, respectively. The second lens includes a second lens shape having a second base refractive power and a second diffractive pattern imposed on the second lens shape, the second diffractive pattern having a second lower diffraction order with a second lower diffractive power and a second higher diffraction order with a second higher diffractive power. The second lens includes lower and higher optical powers equal to the second base refractive power plus the second lower and higher diffractive powers, respectively. The first higher optical power has a negative LCA and the second lower optical power has a negative LCA. The second base refractive power does not equal either the second lower optical power or the higher optical power. | 05-12-2011 |
20110205486 | TORIC OPTIC FOR OPHTHALMIC USE - An ophthalmic lens for modifying or reducing non-axisymmetric higher order aberrations includes an optic body disposed about an optical axis having a primary meridian and an orthogonal secondary meridian. The optic body comprises an anterior surface and an opposing posterior surface. The optic body includes an optic zone comprising a base shape that is configured to form an image or focus from light incident on the surfaces, either alone or when used within an optical system. The optic body also includes a higher order toric shape that is imposed on or added to one of the surfaces. The higher order toric shape also includes a first profile disposed along the primary meridian and a second profile disposed along the secondary meridian that is different in shape from the first profile. The higher order toric shape is characterized by a profile along at least one meridian of the lens that changes with increasing radius from the optical axis raised to a power that is greater than two. | 08-25-2011 |
20110234974 | Diffractive Multifocal Lens - There is provided a diffractive multifocal lens, wherein a diffraction phase structure of a diffraction pattern has a structure expressed by the following formula: | 09-29-2011 |
20110292335 | DIFFRACTIVE TRIFOCAL LENS - A diffractive multifocal lens is disclosed, comprising an optical element having at least one diffractive surface, the surface profile comprising a plurality of annular concentric zones. The optical thickness of the surface profile changes monotonically with radius within each zone, while a distinct step in optical thickness at the junction between adjacent zones defines a step height. The step heights for respective zones may differ from one zone to another periodically so as to tailor diffraction order efficiencies of the optical element. In one example of a trifocal lens, step heights alternate between two values, the even-numbered step heights being lower than the odd-numbered step heights. By plotting a topographical representation of the diffraction efficiencies resulting from such a surface profile, step heights may be optimized to direct a desired level of light power into the diffraction orders corresponding to near, intermediate, and distance vision, thereby optimizing the performance of the multifocal lens. | 12-01-2011 |
20120033177 | Aspheric, astigmatic, multi-focal contact lens with asymmetric point spread function - Presbyopic contact lenses that provide improved vision quality by use of optical zones which are not symmetric about the lens optical axis. The contact lens includes an optic body sized and configured to be received in an eye (or eyes) of a presbyopic patient having a front surface with a front optical center and a back surface with a back optical center, and having a lens optical axis intersecting the front surface at the front optical center and the back surface at the back optical center, and having optical zones which are not symmetric about the lens optical axis. The lens construction produces an asymmetric point spread function which enables any resulting asymmetric stray light to be steered in a predetermined direction. | 02-09-2012 |
20120062836 | METHOD AND SYSTEM FOR RETARDING THE PROGRESSION OF MYOPIA - A method for retarding the progression of myopia in a human eye, the method comprising: providing ( | 03-15-2012 |
20120075579 | TRANSLATING PRESBYOPIC CONTACT LENS - Lenses for correcting presbyopia are translating, multifocal contact lenses with pseudotruncations which are asymmetric about the vertical meridian. | 03-29-2012 |
20120075580 | TRANSLATING PRESBYOPIC CONTACT LENS - Lenses for correcting presbyopia are translating, multifocal contact lenses with pseudotruncations which are asymmetric about the vertical meridian. | 03-29-2012 |
20120075581 | TRANSLATING PRESBYOPIC CONTACT LENS - Lenses for correcting presbyopia are translating, multifocal contact lenses with pseudotruncations which are asymmetric about the vertical meridian. | 03-29-2012 |