Abstract: A vision training system comprises a display device configured to display dynamic visual content having a flicker rate, a flicker generator configured to adjust the flicker rate according to a duty cycle, a visual signal source configured to provide a visual signal in the form of dynamic content to the flicker generator, or, alternatively, to the display device, and a receiver configured to receive indications that the flicker rate should be adjusted.

Abstract: For evaluating custom made eyeglass lenses using a visual fatigue function, the visual fatigue function includes at least one of or both of a positive relative convergence and a negative relative convergence of the positive relative convergence, the negative relative convergence, a positive relative accommodation, a negative relative accommodation and a vertical fusional vergence.

Abstract: An antireflection film is formed by alternately laminating a low refractive index layer and a high refractive index layer. The antireflection film has a reflectance of 10% or less and an excitation purity range of 10 or less for visible light in a wavelength range from 380 nm to 780 nm incident at an incident angle ranging from 0° to 45° when regarding the direction perpendicular to the surface as 0°. The antireflection film inhibits a specific color tone from occurring in interference color of incident light coming from an oblique direction.

Abstract: The invention relates to an ophthalmologic composition including a dye of the general formula I in which R1=substituted or unsubstituted hydrocarbon radical, R2=substituted or unsubstituted hydrocarbon radical with at least one polymerizable double bond, R3?H or substituted or unsubstituted hydrocarbon radical, R4?H, electron-withdrawing substituent or substituted or unsubstituted hydrocarbon radical and X?O, S, NH or NR5, wherein R5 is a substituted and/or unsubstituted hydrocarbon radical. Moreover, the invention relates to another ophthalmologic composition and an ophthalmologic lens.

Abstract: A method for designing and manufacturing a monofocal ophthalmic lens and corresponding lens. A surface of the monofocal ophthalmic lens is defined by: f(x,y)=a1+a2?{square root over (1?a3x2?a4y2)}+a5exp{a6x4+a7y4+a8x2y2} where a1-a8 are coefficients, a5 is other than 0 and at least one of a6, a7 and a8 is other than 0, including a hyperbolic component and an exponential component. The coefficients can be calculated by an iterative calculation and the merit function as follows: fm = [ ? i ? ? i ? m i 2 ? ( ? ) ] 1 / 2 where mi is a value of an optical property at a specific viewing angle ? with respect to an optical axis of the lens, and ?i is a weighting value.

Abstract: This invention relates to an ophthalmic lens with a low reflection both in the ultraviolet region and in the visible region, comprising a substrate provided on its rear main face with a multilayered antireflective coating (3-7 layers) comprising a stack of at least one layer with a high refractive index and at least one layer with a low refractive index, having a mean reflection factor on the rear face in the visible region Rm lower than or equal to 1.15%, a mean light reflection factor on the rear face in the visible region Rv lower than or equal to 1%, a mean reflection factor RUV on the rear face between 280 nm and 380 nm, weighted by the function W(?) defined in the ISO 13666:1998 standard, lower than 5%, for angles of incidence of 30° and 45°, the antireflective coating outer layer being a silica-based layer. The lens according to the invention does especially prevent the reflection of the UV radiation produced by light sources located behind the wearer.

Abstract: A suction gripper for transferring ophthalmic lenses from a storage cup into a centering cup has a suction head with several suction openings and several suction cups, wherein the suction cups are positioned on a convexly rounded surface. At least some of the suction openings are arranged in the suction cups and at least one suction opening is arranged remote from the suction cups on the suction head. The suction gripper is used in a manipulation system for ophthalmic lenses that encompasses ophthalmic lenses, a storage cup, a centering cup and the suction gripper.

Abstract: The present invention generally relates to a method for coating ophthalmic lenses, preferably contact lenses, more preferably silicone hydrogel contact lenses. In particular, the present invention is directed to a method for forming a coating comprising a polyionic material on a contact lens, preferably a silicone hydrogel contact lens, directly in the primary package and maintaining the coated contact lens within said primary package until insertion of the coated contact lens in the eye of the contact lens user.

Abstract: An optical apparatus (1) for wearing by a human user comprises one or more variable power lenses (4), means (10) for adjusting the power of the variable power lens (4), means (26) for capturing data representative of said adjustments, and means (28) for recording or transmitting the captured data.

Abstract: The present invention relates to an adjustable ophthalmic lens comprising at least one optical element comprising a combination of at least two optical surfaces wherein both optical surfaces are chiral optical surfaces adapted to provide chiral modulation of the light beam, the combination of the chiral optical surfaces is adapted to provide at least one adjustable focus and the combination of the chiral optical surfaces is adapted such that the focal distance of the adjustable foci depends on the mutual position of the chiral optical surfaces. These chiral optical surfaces result in a chiral modulation of the light beam. Combinations of chiral optical surfaces are applied to obtain adjustable optical powers in single-focus ophthalmic lenses and multiple-focus ophthalmic lenses.

Abstract: A process for manufacturing an ophthalmic lens containing a Fresnel microstructured surface inside the lens. The Fresnel lens is injection molded with a mold insert having a heat conductivity lower than the thermoplastic material used to form the Fresnel lens. A second thermoplastic material is overmolded to the Fresnel lens to cover and protect the microstructured surface. The mold insert is made from Nickel or thermoplastic. The resulting lens includes two layers having different refractive indices. The Fresnel lens is made from polycarbonate while the overmold is made from PMMA or TPU.

Abstract: 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.

Abstract: Systems and methods for providing enhanced image quality across a wide and extended range of foci encompass vision treatment techniques and ophthalmic lenses such as contact lenses and intraocular lenses (IOLs). Exemplary IOL optics can include a circular surface structure which acts as a diffractive or phase shifting profile. In some cases, a single ring IOL includes an anterior face and a posterior face, where a profile can be imposed on the anterior or posterior surface or face. The profile can have an inner portion such as a microstructure or central echelette, and an outer portion. Between the inner portion and the outer portion, there may be a transition zone that connects the inner and outer portions.

Abstract: Dihydroxybenzotriazole UV absorbing compounds that are particularly useful in ophthalmic devices are disclosed.

Abstract: The present invention is directed to a composite lens, comprising an anterior rigid gas permeable layer, and an annulus of soft material bonded to a posterior surface of the anterior rigid gas permeable layer, wherein a central zone of the composite lens is rigid and without a soft layer, wherein a peripheral zone of the composite lens is generally rigid in its anterior aspect and soft in its posterior aspect.

Abstract: The present invention provides a plastic lens for spectacles wherein a transparent hardened coating layer containing a UV absorbing agent is formed on a peripheral edge of the plastic lens which has been subjected to edging or on a machined surface of the plastic lens which has been subjected to machining for attachment to a frame, a process for producing the plastic lens for spectacles, and an applicator suited for use in such a process. Discoloration of the peripheral edge of the edged plastic lens for spectacles or the machined surface of the plastic lens machined for attachment to a frame is prevented.

Abstract: More appropriate evaluation, design, and manufacture are made feasible by taking visual performances into consideration more appropriately. In order to achieve this object, in the present invention, spectacle lenses are evaluated using a visual acuity function including a factor representing physiological astigma. The physiological astigma herein means astigma in the phenomenon that an improved visual acuity is yielded when slight astigma is present in the region where the accommodation power is lower than the region indicating the range of positive relative accommodation power in which the accommodation power increases among the relative accommodation power as adaptable accommodation power in a state that convergence does not change.

Abstract: Described herein are devices, compositions, and methods for improving color discernment.

Abstract: In a plastic optical product, an optical multilayer film 3 having seven layers is formed on a surface of a plastic substrate 1 directly or with an interlayer 2 interposed therebetween. In the layers of the optical multilayer film 3, a layer on the plastic substrate 1 side is a low refractive index layer, low refractive index layers and high refractive index layers are alternately disposed. At least the high refractive index layer at the center contains substoichiometric titanium oxide. In a plastic lens for spectacles belonging to such a plastic optical product, the plastic substrate 1 is a plastic lens substrate for spectacles, the interlayer 2 is a hard coat film, and the optical multilayer film 3 is an anti-reflective film.

Abstract: There is provided a lens that includes a surface having a continuous monotonic change of power through (a) a first zone for reading at a distance of about 35 centimeters to about 45 centimeters from said lens through (b) a second zone for viewing at near and intermediate distances from about 45 centimeters to about four meters from said lens. The second zone includes a corridor having a length of greater than or equal to about 16 millimeters and a width of greater than or equal to about 6 millimeters along said length. The lens has surface astigmatism less than or equal to about 0.5 diopter within said corridor, and is a progressive addition lens.

Abstract: An imaging lens unit is presented, comprising an imaging lens having a lens region defining an effective aperture, and a phase coder. The phase coder may be incorporated with or located close to the lens region. The phase coder defines a surface relief along the lens region formed by at least three phase patterns extending along the lens region. Each of the phase patterns differently affecting light components of one of at least three different wavelength ranges while substantially not affecting propagation of light components of other of said at least three wavelength ranges. The surface relief affects light propagation through the lens region to extend a depth of focus for at least one of said at least three wavelength ranges.

Abstract: A device has an image and a mirror for demonstrating and testing in comparative manner the effectiveness of an anti-reflection treatment of an ophthalmic lens. The device has a part (1) having a first face (1A) supporting the image (2) and a second face (1B) supporting the mirror (3). The image (2) is backlit by a light source (7), the second face (1B) forms an angle of at least 90° relative to the first face and is placed facing a third face (1C) for positioning at least one ophthalmic lens (4A) with its concave face facing outwards. The third face is provided with an arrangement for positioning the lens and including at least one orifice (4) arranged in the third face.

Abstract: An optical processor is presented for applying optical processing to a light field passing through a predetermined imaging lens unit. The optical processor comprises a pattern in the form of spaced apart regions of different optical properties. The pattern is configured to define a phase coder, and a dispersion profile coder. The phase coder affects profiles of Through Focus Modulation Transfer Function (TFMTF) for different wavelength components of the light field in accordance with a predetermined profile of an extended depth of focusing to be obtained by the imaging lens unit. The dispersion profile coder is configured in accordance with the imaging lens unit and the predetermined profile of the extended depth of focusing to provide a predetermined overlapping between said TFMTF profiles within said predetermined profile of the extended depth of focusing.

Abstract: Embodiments of the present invention include a lens configured to adapt to varying light conditions. The lens comprises a first layer made of a transparent thermoplastic material and a second layer made of a transparent thermoplastic material. The lens also includes a polarized film and a photochromatic film that adjusts to vary the amount of light that is transmitted through the film in response to the amount of ultraviolet radiation received by the film. The lens is thermoformed to have a selected radius of curvature. Embodiments of the lens disclosed herein are adapted for use with a frame that is configured to receive the lens and position the lens proximate a user's face and eyes.

Abstract: Improved eyewear is disclosed. The eyewear comprises a frame member and a lens. The eyewear also includes circuitry within the frame member for enhancing the use of the eyewear. A system and method in accordance with the present invention is directed to a variety of ways to enhance the use of eyeglasses. They are: (1) media focals, that is, utilizing the eyewear for its intended purpose and enhancing that use by using imaging techniques to improve the vision of the user; (2) telecommunications enhancements that allow the eyeglasses to be integrated with telecommunication devices such as cell phones or the like; and (3) entertainment enhancements that allow the eyewear to be integrated with devices such as MP3 players, radios, or the like.

Abstract: Computer eyewear for reducing the effects of Computer Vision Syndrome (CVS). In one embodiment, the eyewear comprises a frame and two lenses. In some embodiments, the frame and lenses have a wrap-around design to reduce air flow in the vicinity of the eyes. The lenses can have optical power in the range of approximately +0.5 to +2.5 diopters for reducing accommodation demands on a user's eyes when using a computer. The lenses can also include prismatic power for reducing convergence demand on a user's eyes when sitting at a computer. The lenses can also include a partially transmissive mirror coating, tinting, and anti-reflective coatings. In one embodiment, a partially transmissive mirror coating or tinting spectrally filters light to remove spectral peaks in fluorescent or incandescent lighting.

Abstract: The invention is directed to an optical device comprising refractive optical structures, wherein the refractive structures are characterized by a change in refractive index, exhibit little or no scattering loss, and exhibit no significant differences in the Raman spectrum with respect to the non-irradiated optical, polymeric material.

Abstract: An ophthalmic lens, such as an intraocular lens (IOL), a phakic IOL or a corneal implant, and a system and method relating to same, having coupled thereto and/or integrated thereon at least one rotationally asymmetric diffractive structure. The lens of the present invention may include a single or limited number of rotationally asymmetric diffractive echelettes that provides an extended depth of focus.

Abstract: A method and system for allowing multiple geographically distributed optical labs to share global resources over a telecommunications network. Each optical lab is set up as a client account on the server with privileges to access the global recourses. Each lab has its own equipment set, the settings and configuration of which, are recorded in one of the client account databases. Other proprietary databases contain price lists, financial information and patient data. The lens calculation software encounters a sequential stream of job requests from different client accounts. The corresponding proprietary account data, allows uniform pricing rules to be applied to lens processing jobs. As jobs are completed, each lab receives an individual packet of printable job ticket data, printable invoice data, electronic interface files for the lens generating equipment, and an extract file for importing into the labs accounting software.

Abstract: Azo compounds that block visible light are disclosed. These light absorbers are particularly suitable for use in intraocular lens materials.

Abstract: Dihydroxybenzotriazole UV absorbing compounds that are particularly useful in ophthalmic devices are disclosed.

Abstract: The present invention relates to a photochromic composition comprising multifunctional (meth)acrylate-based monomers having two or more functional groups, a photochromic dye and an aromatic vinyl compound, in which the content of the aromatic vinyl compound is more than 30% by weight and 70% by weight or less, a photochromic film produced by using the same, and a method for producing the photochromic film.

Abstract: An optical article having anti-fogging properties, comprising a substrate having one main face coated with an anti-reflecting stack of layers of low refractive index (Ll) and high refractive index (HI) including an outermost and innermost layer, wherein the outermost layer of the anti-reflecting stack is a sandwich layer comprising a core portion interleaved between two side portions, said core portion being made of SiO2, SiOx with 1?x<2, a mixture of SiO2 and SiOx or a mixture of SiO2 and/or SiOx with 10% by weight or less, based on the total weight of the mixture, of AI2O3, having a physical thickness ranging from 20 to 150 nm, preferably 30 to 80 nm and being formed by vacuum evaporation deposition in a vacuum chamber at a deposition rate of at least 1.10 nm/s and/or maintaining a pressure higher than or equal to 1×10?4 mbar, preferably ranging from 1.

Abstract: A lens system is presented having a diffractive optical power region. The diffractive optical power region has a plurality of concentric surface relief diffractive structures. A greater portion of light incident on a diffractive structure near the center point contributes to the optical power than light incident on a diffractive structure peripherally spaced therefrom.

Abstract: The invention relates to a method for determining an ophthalmic lens for a person (i1, i2, i3) to wear said lens, comprising the following steps: i) determination of the size (T1, T2, T3) or height of the eyes (H1, H2, H3) of the person to wear the lens; and ii) calculation of at least one characteristic of the ophthalmic lens according to the size (T1, T2, T3) or the height of the eyes (H1, H2, H3) of the person to wear the lens. The ophthalmic lens can be progressive strength or unifocal. The invention also relates to an optimisation method and a method for producing an ophthalmic lens implementing such a definition method. The invention further relates to a set of lenses having at least one characteristic that depends on the size and the height of the eyes of the person to wear the lens.

Abstract: A progressive ophthalmic lens includes at least one complex surface having a principal progression meridian. The complex surface has a horizontal reseau of bands and at least one geometrical quantity of the complex surface is substantially equal in all bands of the reseau for a given point of a vertical.

Abstract: An ophthalmic lens system comprises a lens body with a curved outer surface and an assembly including a plurality of spaced apart nanostructures. The assembly covers at least a portion of the curved outer surface.

Abstract: This invention discloses a device comprising multiple functional layers formed on substrates, wherein at least one functional layer comprises an electrical energy source. In some embodiments, the present invention includes an insert for incorporation into ophthalmic lenses that has been formed by the stacking of multiple functionalized layers.

Abstract: This invention discloses methods and apparatus for providing a media insert with an energy source to an ophthalmic lens. The energy source is capable of powering a component included within the ophthalmic lens. In some embodiments, an ophthalmic lens is cast molded from a silicone hydrogel and the component includes an electro-optical lens portion.

Abstract: A method of generating a high precision optical surface profile includes obtaining a high precision optical surface profile which contains information of the optical path difference map of the profile. A substrate material has a known index of refraction, Ns, while a cover material has an index Nc that is more closely matched to the index Ns of the substrate material than the index of air Nair to Ns. An exaggerated surface profile is cut that is proportionally expanded from the high precision profile by a factor: (Ns?Nair) divided by (Ns?Nc). The cut surface profile is covered with the cover material.

Abstract: This invention discloses a media substrate for incorporation into ophthalmic lenses that has been formed by the stacking of multiple functionalized layers. Additionally, methods and apparatus for providing a stacked functional layer insert for incorporation into an ophthalmic lens are also provided. In some embodiments, an ophthalmic lens is cast molded from a silicone hydrogel and the lens includes at least one stacked functional layer insert portion.

Abstract: A method of making an optical element that includes a thermoplastic power portion, the method including laminating a first thermoplastic sheet to one side of a functional film, laminating a second thermoplastic sheet to a second side of the functional film, and affixing either the first thermoplastic sheet or the second thermoplastic sheet to the power portion, with the other of the first or second thermoplastic sheets being open to atmosphere.

Abstract: This invention provides for an ophthalmic lens with at least one portion of the lens including multiple voxels of polymerized crosslinkable material. In addition, the present invention provides for apparatus for generating an ophthalmic lens with one or more areas of different refractive indexes and a surface with one or both of a raised area and a depressed area.

Abstract: A transparent optical component (10) comprises at least one transparent set of cells (15) juxtaposed parallel to a surface of the component, each cell being separated by walls (18) parallel to the component surface, hermetically sealed and containing at least one substance having an optical property, and at least one absorbing coating (30), placed on the walls on one side extending parallel to said component surface. The optical component can be cut out along a predefined contour and optionally drilled. The invention also comprises a method for producing such optical component and its use for producing an optical element. The optical element may be a spectacle lens in particular.

Abstract: More appropriate evaluation, design, and manufacture are made feasible by taking visual functions into consideration more appropriately. In order to achieve this object, in the present invention, provided is a spectacle lens evaluation method for evaluating spectacle lenses using a visual acuity function, characterized in that the visual acuity function includes relative accommodation power as a factor, the relative accommodation power referring to the range expressed in terms of diopter in which distinct vision is achieved while maintaining convergence of a gaze point.

Abstract: Certain exemplary embodiments include methods of determining ophthalmic prescriptions to ameliorate presbyopia. Certain exemplary embodiments provide an ophthalmic lens having spherical aberration of the same sign as the patient's eye and of a magnitude effective to substantially provide a desired net spherical aberration for an optical system including the patient's eye and the ophthalmic lens where the desired net spherical aberration provides a desired increase in near vision. Certain exemplary embodiments include contact lenses, intraocular lenses, corneal onlays, corneal inlays, or corneal surgeries providing spherical aberration of the same sign as the patient's eye and of a magnitude effective to substantially provide a desired net spherical aberration for an optical system including the patient's eye and the ophthalmic lens where the desired net spherical aberration provides a desired increase in near distance vision.

Abstract: A visual prosthesis includes an artificial muscle configured to deform in response to a focusing signal. The artificial muscle is coupled to at least a portion of an optical system for changing a focal point thereof.

Abstract: A variable focus lens system for eyeglasses is disclosed. The system consists of superimposed first and second thin lenses, simulating Alvarez lenses, with one side of each lens divided into Fresnel zones and zone boundaries. The second lens element is slidable for focus adjustment. The Fresnel zone boundary surfaces are made parallel to the user's optical line of sight to reduce visual obstructions, and the zone boundaries may be restricted to areas near the lens periphery to further reduce visual obstructions. The Fresnel zone boundaries may follow paths which enable equal, constant step size for the boundaries along their lengths. An opaque light absorbing coating may be applied to the zone boundaries to reduce light scattering. A fixed prescription lens, having the user's distance and astigmatism corrections, is superimposed on the first and second lens elements.

Abstract: “Universal improvement” of vision is achieved by effectively changing the shape of the anterior refracting surface of the cornea to an ideal “turtleback” shape, on which is imposed the necessary curvature adjustment to achieve correction of distance vision. In accordance with one embodiment, the cornea is actually formed to the turtleback shape through corneal surgery, preferably laser ablation surgery. In accordance with a second embodiment, a contact lens with the desired distance corrected ideal turtleback shape on its anterior surface is positioned over the cornea.

Abstract: A corrective wraparound lens is provided for a wearer where the wraparound lens has a non-corrective lens element and a corrective lens element where the curvature of the non-corrective lens element is different from the curvature of the corrective lens element. Such lens has the ability to correct the defect in eyesight while capable of contouring to the face of the wearer thus able to protect the face of the wearer. In addition, a method to correct defect in eye is provided using a corrective wraparound lens for a wearer comprising a non-corrective lens element and a corrective lens element wherein a first curvature of said non-corrective lens element is different than a second curvature of said corrective lens element.