A spectacle lens for at least one eye of a user, a method for producing a spectacle lens, and a computer program product having executable instructions for performing the method for producing the spectacle lens are disclosed. The spectacle lens has a permanent marking which is or contains a diffractive structure, wherein a diffractive pattern generated by illumination of the diffractive structure is configured to be invisible upon a first kind of illumination and configured to be visible only upon a second kind of illumination. The permanent markings on the spectacle lens are, on one hand, invisible to the user or to a spectator looking at the user wearing the spectacle lens without utilizing specially selected optical aids but, on the other hand, enables continued control of the spectacle lens in front of the eye of the user by an optician or a specifically designated optical sensor.

The present invention provides a metal oxide dispersion comprises a metal oxide, a millbase and a dispersant. The dispersant in the metal oxide is selected from a group consisting of a phosphoric acid polyester copolymer, a trimethoxysilane compound, a triethoxysilanes compound, dimethylamino ethyl methacrylate (DMAEMA) and a combination thereof, and the dispersion is substantially free of water. The metal oxide dispersion of the invention is useful for manufacturing an inkjet ink to provide a high-quality color image on a contact lens or a mold so as to produce a colored contact lens.

Information is stored in an optical element in the form of a glass or plastic body embodied as spectacles lens, spectacles lens blank or spectacles lens semi-finished product. The information in the form of data is stored on or in the glass or plastic body by creating at least one marking with a marking system. The marking can be read by a reading apparatus. The marking system has an interface for reading information individualizing the optical element. The marking is created permanently by the marking system on or in the optical element at a definition point of a local body-specific coordinate system set by two points on or in the optical element. In this body coordinate system, the manufacturer specifies the position of the lens horizontal and/or the far and/or the near and/or the prism reference point.

Ophthalmic lenses and method of manufacturing ophthalmic lenses are disclosed. The lenses are manufactured with markers for aligning the lenses in a particular rotational alignment with respect to a spectacle frame. The lenses can also be provided with scattering parts for defocus to prevent myopia.

The present disclosure relates to means of managing eye-length disorders, like myopia. The invention includes an apparatus and methods for the prescription, selection, supply and fitting of permanent or impermanent optical films used in conjunction with standard single vision spectacles, wherein the apparatus and methods are configured with non-refractive opaque features, wherein the non-refractive opaque features facilitate an active rise in the overall retinal ganglion cell activity for the wearer, which may serve as an optical signal to decelerate, ameliorate, control, inhibit, or reduce the rate of myopia progression of the wearer.

A method for producing a semi-finished spectacle lens and a semi-finished spectacle lens includes identifying the semi-finished spectacle lens by applying a removable sticker having a unique code to the semi-finished spectacle lens. The semi-finished spectacle lens has an embossed code that is engraved into the semi-finished spectacle lens. The sticker is applied to at least partially cover the embossed code. The sticker can be applied directly onto the semi-finished spectacle lens early in the manufacturing process, for example immediately after molding or injection molding. The sticker can also be applied to the semi-finished spectacle lens before further surface treatment is carried out.

The present invention provides a device for an energizable Ophthalmic Lens with an event coloration mechanism. The event coloration mechanism may color or change color based on some predefined event. For example, a predefined constituent or predefined condition of the tear fluid may be indicative of the predefined event, and the event coloration mechanisms may interact with the tear fluid, accordingly. The event coloration mechanism may provide the energizable functionality of the Ophthalmic Lens in some embodiments. In others, the event coloration mechanism may be passive but may interact and interface with the electrical components of the Ophthalmic Lens, such as, for example, those included within the Media Insert. Event coloration mechanisms may be combined with additional functionalities that may be included in an energizable Ophthalmic Lens.

Contact lenses comprising designs/colorants may be utilized to enhance and/or highlight the appearance of the eyes upon which the contact lenses are positioned. These contact lenses comprise a substantially annular shaped clear layer on the front curve surface to completely encapsulate the designs/colorants within the contact lens. The annular shape provides no clear coat over the optic region thereby ensuring high optical quality.

Described herein are systems, devices, and methods to manufacture a feature onto the rim of an ophthalmic lens. In one embodiment, there are multiple lens rim features, and they are substantially restricted to the periphery of the lens. In alternative embodiments, the lens rim features are substantially restricted to either the top half or the bottom half of the periphery. In some embodiments, the features are added to a lens that has been finished for vision correction, whereas in other embodiments the features are added to a semi-finished lens. In one embodiment, there is a device for printing lens rim features onto an ophthalmic lens, and in another embodiment there is a system for printing such lens rim features. One embodiment is a method for printing a lens rim feature onto a lens, including the use of a device with a print-head and one or two grasping devices.

Contact lenses that comprise a multi-layer design may be utilized to enhance and/or highlight the appearance of the eyes upon which the contact lenses are positioned while maintaining a natural look. These exemplary designs each comprise three layers; namely, a unique limbal design graphic, a unique inner effect graphic and a unique outer effect graphic. The layers may be formed utilizing any number of design elements and design principles. Pearlescent pigments may be incorporated into one or more regions of a cosmetic contact lens to add a shiny, radiant and iridescent appearance thereto. More particularly, mica based pearlescent pigments coated with an oxide, for example, titanium dioxide or iron oxide, incorporated into one or more regions of the contact lens will result in the one or more regions having a natural, wet reflective appearance. Contact lenses comprising designs/colorants/pigments may be utilized to enhance and/or highlight the appearance of the eyes upon which the contact lenses are positioned. These contact lenses comprise a substantially annular shaped clear layer on the front curve surface to completely encapsulate the designs/colorants/pigments within the contact lens. The annular shape provides no clear coat over the optic region thereby ensuring high optical quality.