Abstract: A contact lens for shaping a cornea of an eye of a patient to treat high cylinder astigmatism may include a peripheral portion, an alignment portion, a treatment portion, a reverse portion, and a staining feature. The peripheral portion may cause migration of epithelial cells from a periphery of a cornea of the eye of the patient towards a center of the cornea of the eye of the patient. The alignment portion may align the contact lens on the cornea. The treatment portion may cause migration of the epithelial cells from the center of the cornea towards the periphery of the cornea. The reverse portion may relieve pressure caused by the migration of the epithelial cells. The staining feature may contact the cornea, thereby reshaping the cornea to treat high cylinder astigmatism. The staining feature may apply a ribbon-shaped staining pattern to the cornea across the contact lens.

Abstract: One embodiment of an ocular lens includes a lens body configured to contact an eye where the lens body has an optic zone shaped to direct central light towards a central focal point of a central region of a retina of the eye. At least one optic feature of the lens body has a characteristic that directs peripheral light off axis into the eye away from the central region of the retina. Another embodiment of an ocular lens has at least one isolated feature of the lens body that has a characteristic of directing peripheral light off axis into the eye away from the central region of the retina. Methods of making contact lenses include forming the features during the manufacturing process.

Abstract: According to some embodiments, a progressive addition lens includes a distance portion and a reading portion. The distance portion includes a fixed prism diopter power. The reading portion includes a fixed base in prism. The fixed base in prism comprises a diopter power between 0 to 10 diopters greater than the fixed prism diopter power of the distance portion.

Abstract: Described herein are systems and/or methods for forming an ophthalmic lens. An example method may comprise a step of determining a power profile based on a power profile function defined by a base optical power, an amount of spherical aberration at a radial distance from a geometric center of the lens, and a bump function. The example method may comprise a step of adjusting the power profile based at least on minimizing a shape metric of a through-focus curve.

Abstract: Provided is a head-mounted display that enables viewing of a stereoscopic image without visual fatigue caused by vergence-accommodation conflict. A head-mounted display includes a display device to display images for the left eye and the right eye on a screen, virtual image forming optical systems for the left eye and the right eye, respectively disposed with respect to images for the left eye and the right eye on the screen, and wide-focus lenses for the left eye and the right eye having a negative focal length with a range, and respectively disposed with respect to the virtual image forming optical systems for the left eye and the right eye so as to overlap optical axis directions of the virtual image forming optical systems for the left eye and the right eye. By respectively displaying virtual images of images, a permissible range of vergence and accommodation is expanded.

Abstract: The present disclosure is directed to lenses, devices, methods and/or systems for addressing refractive error. Certain embodiments are directed to changing or controlling the wavefront of the light entering a human eye. The lenses, devices, methods and/or systems can be used for correcting, addressing, mitigating or treating refractive errors and provide excellent vision at distances encompassing far to near without significant ghosting. The refractive error may for example arise from myopia, hyperopia, or presbyopia with or without astigmatism. Certain disclosed embodiments of lenses, devices and/or methods include embodiments that address foveal and/or peripheral vision. Exemplary of lenses in the fields of certain embodiments include contact lenses, corneal onlays, corneal inlays, and lenses for intraocular devices both anterior and posterior chamber, accommodating intraocular lenses, electro-active spectacle lenses and/or refractive surgery.

Abstract: 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.

Abstract: An optical device comprising a lens configured to be disposed in an eye. The lens is configured to contact a sclera of the eye and have a clearance above a cornea of the eye when disposed in the eye. The lens comprises a back surface that comprises at least one non-symmetrical feature that is configured to engage a corresponding feature on the eye. The lens is configured to be rotationally stable in use based on the at least one non-symmetrical feature on the back surface of the lens.

Abstract: A lens for an eye that includes a zone with a first power profile for images received by the retina on the fovea, a zone with a second power profile for images received by the peripheral retina on the nasal side and a zone with a third power profile for images received by the peripheral retina on the temporal side. The first power profile is selected to provide clear or acceptable vision and the second and third power profiles are selected to affect the peripheral image position.

Abstract: A contact lens (1) comprises an optical zone (5) extending with a first diameter (A) about an optical axis (X) of the lens, and is provided with a first dioptric power and a central region (6), extending about the optical axis (X) with a second diameter (B), smaller than the first diameter, inside which is provided an optically inactive zone (7) with a diameter smaller than 0.5 mm.

Abstract: A spectacle lens can inhibit ametropia of the eyes and ensure full visibility. The spectacle lens comprises: first refraction areas and second refraction areas. Each first refraction area has a first refraction force that may be based on a prescription for correcting the ametropia of the eyes. Each second refraction area has a refraction force different from the first refraction force and may function to focus images on the positions except the retina of the eyes, to inhibit the development of the ametropia. Near the central part of the lens, the second refraction areas form a plurality of independent island-shaped areas, and the first refraction areas form the areas beyond the areas of the second refraction areas.

Abstract: Progressive power lens including: object side surface; eyeball side surface; and at least a near portion having a power for near vision, wherein object side surface includes power change in vertical direction of lens having progressive refractive power function, eyeball side surface includes power change in horizontal direction of lens having progressive refractive power function, when surface refractive power in the horizontal direction is defined as DHn and surface refractive power in vertical direction is defined as DVn in near power measurement point N in object side surface, relational expression of DHn<DVn is fulfilled, and near portion of eyeball side surface has a shaped part wherein signs of positive and negative of surface refractive power in vertical direction of lens and surface refractive power in horizontal direction of lens are opposite to each other.

Abstract: An ophthalmic lens to be worn on or in a human eye for refractive correction of astigmatism. The lens has an anterior surface and a posterior surface shaped such that at least a zone of the lens said lens has a first dioptric power over a first main meridian, a second dioptric power different from the first dioptric power over a second main meridian intersecting the first meridian, and a dioptric power between the first dioptric power and said second dioptric power over each meridian between the first and second main meridians, the optical power continuously varying from meridian to meridian. The main meridians and at least one meridian between the main meridians each have a different Coddington shape factor and a different asphericity that is related to the Coddington shape factor of the respective meridian in accordance with a relationship providing aberration neutral refraction for the respective meridian.

Abstract: Contact lenses incorporate power profiles that minimize visual acuity variation for progressing myopes based upon minimization of the variation of neural sharpness image quality over a specific time period. The contact lens includes a center and at least one peripheral zone surrounding the center and having a different dioptric power than at the center. The lens has power profile selected from the group consisting of a power profile with spherical aberration, a multifocal power profile, a freeform power profile, and a segmented freeform power profile. The power profile is based on an initial paraxial power of a myopia progressor and a defined myopia progression rate over a specific time period, resulting in controlled change of the neural sharpness, thereby minimizing changes in changes in visual acuity at a beginning of the time period and at an end of the time period.

Abstract: Methods for optimizing postural prism to be added to a pair of ophthalmic multifocal lenses (lenses) adapted to a wearer and to slow down myopia progression are described. The method includes an initial pair of lenses in a providing step S1. In a postural prism adding step S2, a same postural prism is added to each lens. In a gazing step S3, the wearer gazes at a first distance target through the lenses with the added postural prism. A gazing direction determining step S4 determines the wearer's gazing direction during S3. Steps S2 to S4 may be repeated while changing the added postural prism, wherein the added postural prism is smaller than or equal to a maximum prism value. Steps S2 to S4 may be repeated to determine the smallest added postural prism for which the wearer's gazing direction in step S4 passes through the first vision zone.

Abstract: Provided is a manufacturing method of a progressive refractive lens including a first surface being an object side surface; a second surface being an eyeball side surface; a far vision part for viewing a far vision; a near vision part for viewing a near vision; and a progressive part for viewing an intermediate vision provided between the far vision part and the near vision part, the method including: selecting a base curve according to a near vision power in the near vision part; selecting a semi-finish lens having the base curve; and forming a surface having a progressive refractive power by processing the semi-finish lens, wherein the near vision power is obtained by adding an addition power in the progressive refractive lens to a far vision power in the far vision part.

Abstract: A method and system for treating Presbyopia and pre-Presbyopia are provided that do not compromise the wearer's intermediate or distance vision. The system is a lens and a lens series, wherein the power profiles of the lenses are tailored to provide an amount of positive ADD power in the near vision zone that is slightly less than that which is normally required for near vision accommodation, while also providing an amount of negative spherical aberration in the peripheral optical zone. The dynamic ocular factors of the wearer's eye work in conjunction with the positive ADD power provided by the central optical zone and with the effective ADD gained from the negative spherical aberration provided by the peripheral optical zone to induce a minimally discernible amount of blur that is tuned to maximize the wearer's depth of focus.

Abstract: A method for retarding the progression of myopia in a human eye, the method comprising: providing (41) a concentric annular multi-zone refractive lens including: at least one correcting zone of optical power for correcting (42) refractive error, and at least one defocusing zone for projecting (43) at least one non-homogenous defocused image in front of at least a part of retina to inhibit myopic eye growth, the at least one defocusing zone having at least one less negative power; wherein the correcting and defocusing zones are alternated (45) in the lens and the zones are connected (46) to each other through integrated progressive transition curves.

Abstract: A method comprising: performing eye exam to a subject having a first and second eye; determining a prescription for the first and second eyes, the prescription describing focal power for each of the first eye and the second eye for at least three distances; and providing the prescription to a machine that produces progressive glasses that comprise a first and second lenses, wherein the first and second lenses each having at least three focal portions associated with the at least three distances that are located in a same height in the glasses thereby enabling clear vision for the subject in the first eye and the second eye with respect to the at least three distances.

Abstract: A method of generating a target surface {tilde over (S)}( ?) of an optical lens for the manufacture of the optical lens according to optical lens parameters ?, the method comprising: providing a set of L first surface difference data E(?j) each first surface difference data E(?j) corresponding to the surface difference between a pre-calculated surface S?jpc(??j) (j=1, . . . , L) and an initial surface S?jini (j=1, . . . , L), from which the target surface will be generated, according to the expression: E(?j)=S?jpc(??j)?S?jini (j=1, . . . , L) where ?j (j=1, . . .

Abstract: A contact lens and a method for treating an eye with myopia is described. The contact lens includes an inner optic zone and an outer optic zone. The outer optic zone includes at least a portion with a first power, selected to correct distance vision. The inner optic zone has a relatively more positive power (an add power). In some embodiments the add power is substantially constant across the inner optic zone. In other embodiments the add power is variable across the inner optic zone. While in some embodiments the inner optic zone has a power designed to substantially eliminate lag of accommodation in the eye with myopia, in other embodiments, the add power may be higher.

Abstract: A method for designing a progressive lens is disclosed. The method includes obtaining a wavefront measurement of an eye, determining an initial design for the progressive lens based on the wavefront measurement, determining information about how changes in one or more higher order aberrations of the eye affect a second order correction for the aberrations of the eye based on information derived from the wavefront measurement, modifying the initial design of the progressive lens to provide a final progressive lens design, and outputting the final lens design.

Abstract: This invention discloses methods and apparatus to form organic semiconductor transistors upon three-dimensionally formed insert devices. In some embodiments, the present invention includes incorporating the three-dimensional surfaces with organic semiconductor-based thin film transistors, electrical interconnects, and energization elements into an insert for incorporation into ophthalmic lenses. In some embodiments, the formed insert may be directly used as an ophthalmic device or incorporated into an ophthalmic device.

Abstract: Optimizing a spectacle lens by: obtaining prescription or refraction data VA11 and VA12 of a wearer for at least two different object distances A11 and A12 (A11?A12), comprising data relating to a spherical power Sphv, a magnitude of an astigmatism CylV, and an astigmatism axis AxisV; specifying an object distance model A1(x, y), wherein A1 designates the object distance and (x, y) designates a visual spot or visual point of the spectacle lens in a predetermined direction of sight; specifying a function PRef=ƒ(A1), which describes the dependence of a power vector P Ref = ( M Ref J 0 Ref J 45 Ref ) = ( Sph V + Cyl V 2 - Cyl V 2 ? cos ? ? 2 ? ? Axis V J 45 Ref = - Cyl V 2 ? sin ? ? 2 ? ? Axis V ) of the prescription on the object distance A1, determining the components of the power vector PRef of the prescription in a plurality of visual points (x, y) on the basis of the object distance model A1(x,

Abstract: Multifocal contact lenses and methods and uses are described. The multifocal contact lenses include an optic zone. The optic zone has an aspheric power profile that provides a near vision refractive power and a distance vision refractive power, and provides an Add power that corresponds to the difference between the near vision refractive power and the distance vision refractive power. The multifocal contact lenses can improve binocular vision of presbyopic subjects by being prescribed such that the non-dominant eye contact lens is over-corrected for distance vision, and both multifocal contact lenses are under-corrected for the Add power requirement of the subject. Batches and sets of multifocal contact lenses are also described.

Abstract: A contact lens is provided. It is a rigid gas permeable, corneal-scleral progressive, multifocal, vision lens that covers the cornea and a portion of the sclera of an eye. It is particularly beneficial for use on patients who have undergone refractive surgery and/or on patients experiencing presbyopia. The lens is designed to have dual touch contact with an eye. One contact point is the central portion of the cornea and the other contact point is a portion of the sclera.

Abstract: Contact lenses incorporating asymmetric radial power profiles that increase the radial dioptric power from the center to the margin of the optical zone of the lenses may be utilized to prevent and/or slow myopia progression. The power profiles vary along different meridians.

Abstract: A method comprising: performing eye exam to a subject having a first and second eye; determining a prescription for the first and second eyes, the prescription describing focal power for each of the first eye and the second eye for at least three distances; and providing the prescription to a machine that produces progressive glasses that comprise a first and second lenses, wherein the first and second lenses each having at least three focal portions associated with the at least three distances that are located in a same height in the glasses thereby enabling clear vision for the subject in the first eye and the second eye with respect to the at least three distances.

Abstract: Implementations described and claimed herein provide a complex surface of a progressive multifocal ophthalmic lens. In one implementation, the complex surface includes: a difference in ratio between cylinder value and surface addition less than 0.2 in absolute value; a first ratio between a maximum cylinder value for all points in a grouping circle and a surface addition; and a second ratio between a maximum cylinder value for all points on a disc and a surface addition. In another implementation, the complex surface includes: a difference in ratio between resultant astigmatism value and prescribed addition less than 0.3 in absolute value; a first ratio between a value of resultant astigmatism for all directions of gaze passing through an angular circle and a surface addition; and a second ration between a value of resultant astigmatism for all directions of gaze passing inside the angular circle and a prescribed addition.

Abstract: A process for controlling a lens manufacturing process comprising the steps of: a) manufacturing a master lens according to a manufacturing process using a manufacturing device, b) measuring by using at least a measuring device at least one parameter of the master lens of step a), c) recording the value of the parameter, d) repeating regularly step a) to c) and checking the evolution of the parameter over time, wherein the evolution of at least one parameter of the manufacturing device used during the lens manufacturing process is checked over time and the evolution over time of at least one parameter of the master lens is related with the evolution over time of the at least one parameter of the manufacturing device.

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: A contact lens is provided. It is a rigid gas permeable, corneal-scleral progressive, multifocal, vision lens that covers the cornea and a portion of the sclera of an eye. It is particularly beneficial for use on patients who have undergone refractive surgery and/or on patients experiencing presbyopia. The lens is designed to have dual touch contact with an eye. One contact point is the central portion of the cornea and the other contact point is a portion of the sclera.

Abstract: An eye-side refractive surface 11 of a distance portion is concave and at least part of an eye-side refractive surface 3 of a near portion is a convex region 31 where one or both of principal meridians of the surface are convex. This provides a back surface progressive-power lens capable of solving disadvantages in terms of lens thickness, external appearance and the like in a back surface progressive-power lens in which the eye-side refractive surface is formed of a progressive-power surface.

Abstract: A method and system for treating Presbyopia and pre-Presbyopia are provided that do not compromise the wearer's intermediate or distance vision. The system is a lens and a lens series, wherein the power profiles of the lenses are tailored to provide an amount of positive ADD power in the near vision zone that is slightly less than that which is normally required for near vision accommodation, while also providing an amount of negative spherical aberration in the peripheral optical zone. The dynamic ocular factors of the wearer's eye work in conjunction with the positive ADD power provided by the central optical zone and with the effective ADD gained from the negative spherical aberration provided by the peripheral optical zone to induce a minimally discernible amount of blur that is tuned to maximize the wearer's depth of focus.

Abstract: Optical device (1) for modifying the optics of the eye in its peripheral retina as prophylaxis of the progression of myopia, that it consists in a lens in which its inferior nasal quadrant (2) modifies the strength in a progressive and controlled manner from the center to the outer zone of the lens. The rest of the quadrants (3) of device (1) have a configuration of a graduated crystal or flat crystal, depending, respectively, on whether the user has some visual defect that requires optical correction or lacks said defect. The lens can be either an optical lens, a contact lens or electro-optical systems.

Abstract: A method for determining the value of the inset of a progressive addition lens according to a wearer comprising the steps of: providing convergence data, determining from the convergence data the inset of the progressive addition lens considering at least the convergence data and the prismatic effect of the progressive addition lens.

Abstract: A set of contact lenses having peripheral zones with optical power parameters determined in relation to the optical powers of the central portions of the lenses. In a specific embodiment, an optical parameter assigned to a given peripheral zone of a lens from the set represents a difference between an optical power of the lens in such peripheral zone and an optical power of the lens in the central portion. A method for determining optical parameters of such set of lenses and an apparatus implementing such determination based on imaging data acquired as a result of imaging an eye and generation of a representation of the lenses at least in part of such imaging data.

Abstract: Aspects of the present invention provide an ophthalmic lens comprising at least one regressive and at least one non-regressive rotationally symmetric optical design element. The regressive and non-regressive optical design elements can be combined so as to form a desired optical power profile for the lens while simultaneously exploiting the different relative orientation of the astigmatic vectors of the constituent regressive and non-regressive design elements, thereby resulting in reduced unwanted astigmatism. The regressive and non-regressive rotationally symmetric optical design elements can be positioned on different lens surfaces and in optical communication or can be collapsed onto the same lens surface. The regressive and non-regressive rotationally symmetric optical design elements can each contribute to the total add power of an ophthalmic lens.

Abstract: A progressive power lens including a distance portion for visual recognition of a far working distance, a near portion for visual recognition of a near working distance, and an intermediate portion provided between the distance portion and the near portion, the intermediate portion including a position of an amount of intermediate inset in which a visual line when the intermediate working distance is visually recognized passes an eyeball side surface of the progressive power lens, and addition at intermediate position for viewing an intermediate working distance smaller than the far working distance and larger than the near working distance being set to the position of the amount of intermediate inset.

Abstract: Aspects of the present invention provide progressive addition lenses (PALs) and techniques for designing PALs that result in improved visual performance for the wearer. PALs of the present invention can have vision zones with widths that are more in line with the actual or functional sizes used by wearers. PALs of the present invention can also introduce controlled amounts of unwanted astigmatism into one or more vision zones. By allowing vision zones to include manageable levels of astigmatism, the resulting PAL can avoid the harsh build-up of astigmatism typically found in conventional PALs at the periphery of the channel and viewing zones. Further, PALs of the present invention can be designed using a merit function to achieve an optimized iterative design that accounts for astigmatism vector orientation and not simply astigmatism magnitude as is the case with conventional PAL design.

Abstract: Multifocal contact lenses and methods and uses are described. The multifocal contact lenses include an optic zone. The optic zone has an aspheric power profile that provides a near vision refractive power and a distance vision refractive power, and provides an Add power that corresponds to the difference between the near vision refractive power and the distance vision refractive power. The multifocal contact lenses can improve binocular vision of presbyopic subjects by being prescribed such that the non-dominant eye contact lens is over-corrected for distance vision, and both multifocal contact lenses are under-corrected for the Add power requirement of the subject. Batches and sets of multifocal contact lenses are also described.

Abstract: Aspects of the present invention provide multifocal ophthalmic lenses—for example, an ophthalmic lens having a progressive addition optical power region—having one or more discontinuities. The discontinuities can be used to merge or connect regions of the lens surface having different curvatures or average optical power. The use of discontinuities can obviate the need for blend zones which are largely responsible for the introduction of unwanted astigmatism in conventional lenses. In turn, a multifocal ophthalmic lens of the present invention can provide a desired additive power with less unwanted astigmatism than a conventional progressive addition lens (PAL).

Abstract: 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.

Abstract: Disclosed is an implementation of new technology for effectively providing a contact lens capable of achieving satisfactory corrective effects even with respect to irregular astigmatism (residual irregular astigmatism) caused by a conical cornea and so forth, which could not be corrected with conventional eye glasses or contact lens, wherein the contact lens is not dependent on being made to order for each wearer but is industrially mass-producible by means of a practical and novel structure. A contact lens for correction of irregular astigmatism is disclosed wherein a positive correction area (27) is provided on one side of a special radial line (30) and a negative correction area (28) is provided on another side while in any of the correction areas (27, 28) a lens power is configured so that an absolute value becomes progressively larger from an outer peripheral edge part towards a central portion.

Abstract: The invention relates to so-called progressive medical eyeglass lenses. A progressive lens is a type of lens for making eyeglasses for correcting human vision defects, being adapted simultaneously to far vision and to near vision. The present invention makes it possible to reconcile a design that is finely optimized over a wide range of variables; it enables the looked-for optical powers to be made for any progressive lens prescription while controlling and obtaining a distribution of virtually identical optical values on the entire surface of the lens, and doing so for a wide range of materials (i.e. of refractive indices) e.g. lying in the range 1.498 to 1.74 (values mentioned here in non-exhaustive manner), and for any combination of refractive index, of basecurves lying in the range 0.5 diopters to 10.5 diopters, and for any addition values, over an addition range of 0.5 diopters to more than 3.5 diopters.

Abstract: Optical device (1) for modifying the optics of the eye in its peripheral retina as prophylaxis of the progression of myopia, that it consists in a lens in which its inferior nasal quadrant (2) modifies the strength in a progressive and controlled manner from the center to the outer zone of the lens. The rest of the quadrants (3) of device (1) have a configuration of a graduated crystal or flat crystal, depending, respectively, on whether the user has some visual defect that requires optical correction or lacks said defect. The lens can be either an optical lens, a contact lens or electro-optical systems.