Abstract: Improved optical measuring devices and methods are disclosed for checking certain measurements taken of a patient's face before these measurements are used to create eyeglass lenses for the patient. Embodiments of the invention include a support frame receiving an eyeglass frame having demonstration lenses mounted therein. The eyeglass frame is held in place, and one or more mechanical structures are provided below the support frame which support one or more movable markers, typically one for each lens. The structures are moved according to the measurements taken of the patient's face. A stamping or marking mechanism is provided on each structure which is used to mark the pupil location on each respective lens after the structures are moved according to the patient measurements. The marked lenses are then taken to the patient for verification and modification of measurements, if necessary. Once the measurements have been verified, final lenses may be created.

Abstract: Improved optical measuring devices and methods are disclosed for checking certain measurements taken of a patient's face before these measurements are used to create eyeglass lenses for the patient. Embodiments of the invention include a receptacle or bracket for receiving an eyeglass frame having demonstration lenses mounted therein. The frame is held in place, and one or more mechanical structures are provided below the frame which support one or more movable markers, typically one for each lens. The structures are moved according to the measurements taken of the patient's face. A stamping or marking mechanism is provided on each structure which is used to mark the pupil location on each respective lens after the structures are moved according to the patient measurements. The marked lenses are then taken to the patient for verification and modification of measurements, if necessary. Once the measurements have been verified, final lenses may be created.

Abstract: A method for machining an optical lens via a trimming machine, includes: —a step of locking the optical lens, —a step of acquiring shape characteristics of the optical faces of the optical lens, —a step of generating an instruction for trimming the optical lens, and —a step of trimming the optical lens along a desired contour. The method also includes the following steps: —a step of generating an instruction for etching the optical lens depending on the acquired shape characteristics, and —a step of etching the optical lens along a line located inside the desired contour, during which a pointed etching tool of the trimming machine is controlled according to the etching instruction in such a way that the point of same continually slides against the optical face in order to score same along the line.

Abstract: The invention is directed to a colored contact lens designed for making a wearer's eyes to appear larger, bolder, and enhanced color while giving the wearer's eyes a very natural appearance. A colored contact lens of the invention comprising a first print of a first color and a second print of a second color, wherein the first print consisting of an annular ring of gradient dot matrix, wherein the second print comprises a limbal ring and an outer starburst pattern, wherein the limbal ring surrounds the outer starburst pattern, wherein the annular ring and the limbal ring have a substantially identical outer diameter and the annular ring has a larger inside diameter than the limbal ring, the first color and the second color are different or the same, wherein the first print and the second print are concentric with the center of contact lens.

Abstract: A method of preparing a water extractable silicon-containing biomedical device is disclosed. The method involves curing a monomer mixture comprising one or more silicon-containing biomedical device-forming monomers in the presence of a diluent to produce a silicon-containing biomedical device; wherein the diluent comprises a boric acid ester of a C1 to C8 monohydric alcohol.

Abstract: The present invention, as described above and as further defined by the claims below, provides methods for forming an Ophthalmic Lens that encapsulates a Rigid Insert, wherein the Rigid Insert may be tailored to correct specific astigmatic characteristics of an eye and apparatus for implementing such methods, as well as Ophthalmic Lenses formed with the Rigid Inserts.

Abstract: An eyeglass lens processing shape obtaining method for attaching a prescription lens having an edge thicker than an original lens and having refractive power to a rim of an eyeglass frame, in place of the original lens attached to the rim, the method includes: obtaining an outline of the original lens; obtaining an inner boundary of the rim on a surface of the original lens in a state where the original lens is attached to the rim; obtaining an external form processing shape of the prescription lens based on the outline of the lens; and obtaining a step processing shape of the prescription lens based on the inner boundary of the rim.

Abstract: Disclosed are methods, materials and systems for producing contact lenses and contact lenses produced using said methods, materials and systems. According to some embodiments, a contact lens produced by said methods, materials and systems includes an extra-ocular indicator (“EOI”) adapted to alter in color upon removal of said lens from an eye. The EOI may be at least partially composed of a pigment adapted to become relatively more visible when the contact lens is outside an eye than when the contact lens is placed in an eye.

Abstract: The different illustrative embodiments provide a method, computer system, and computer program product to fit a lens. The method comprises obtaining an image of the lens. The method also comprises identifying an edge of a lens on an eye in the image. The method also comprises associating a number of zones with the image of the lens based on the edge of the lens. The method also comprises identifying the value for each zone in the number of zones based on intensities within the lens. The method also comprises designing a new lens based on the value to reach a desired value.

Abstract: A method for producing spectacle lenses from raw lenses prefabricated in a non-cutting manner uses raw lenses having a central geometric axis standing vertically on them. The lens comprises a convex front side that is formed in a rotationally symmetrical manner about the central axis and is not to be reworked and an opposing back side that is to be reworked with a CNC machine. The front- and back side have at least one optical focal point in common. In order to rework the back side a prescription surface is calculated on the basis of a prescription and of the geometry of the front side. This surface forms a prescription lens in common with the front side, the focal points of which lens correct the visual error of the prescription holder. A spectacle lens with an optical center is produced from the prescription lens for use in an eyeglass frame.

Abstract: A contact lens having one or more fiducial marks that allow the measurement of lens rotation and centration. The lens may be a trial lens. The lenses can be used to apply correction factors for sphero-cylindrical refractive error, higher order aberrations, and corneal topography.

Abstract: A computer-implemented method of designing an iris region of a colored contact lens including providing an annular digital image representing at least a portion of an iris region of the eye. Applying a gradient fill algorithm to the digital image. And applying a halftoning algorithm to the digital image.

Abstract: A contact lens comprising first and second orientation indicia to determine an orientation of the contact lens.

Abstract: A method of preparing an ophthalmic lens (20) for mounting in an eyeglass frame, the ophthalmic lens including a memory mark (28) that is situated on one of its ophthalmic faces (22) and that forms a code storing in digital form at least one item of information relating to a mechanical, geometrical, or optical characteristic of the ophthalmic lens. The method includes three steps: a) acquiring a raw image of at least a portion of the optical face of the ophthalmic lens on which an image of the memory mark appears; b) processing the raw image acquired in step a) in order to decode the information stored in the code; and c) centering and then shaping the ophthalmic lens as a function of the information decoded in step b).