Abstract: There is described a process for manufacturing an ophthalmic lens and an apparatus for forming an ophthalmic lens, in particular a silicone hydrogel contact lens, wherein in a mold assembly a first and a second mold half (101, 102) are first arranged in an intermediate closed position in which the mold surfaces of the two mold halves are spaced apart from each other at a distance increase (d1) of preferably 1 to 100 ?m relative to a final distance (d0) in a final closed position, and wherein, during curing of the lens forming material (202), the mold surfaces (105, 106) of the mold halves (101, 102) are actively or passively moved or moving from the intermediate closed position to the final closed position, where the distance increase (d1) is 0.

Abstract: A method and system to provide for increased signal intensity and improved signal quality in Fourier-domain optical coherence tomography (FDOCT) by capturing the real and virtual images of an object being imaged by FDOCT in sequence or consecutively.

Abstract: This invention relates to an apparatus for measuring a sample contact lens. In particular, the present invention has a housing to hold a sample contact lens to be measured, one or more movement stages connected to the housing, and an interferometer.

Abstract: Described herein are methods for imaging ocular devices. The methods generally involve (a) applying a scattering agent to the ocular device; and (b) imaging the ocular device using optical coherence tomography (OCT). The methods described herein provide useful structural information about the surface of the device with high sensitivity.

Abstract: There is described a process for manufacturing an ophthalmic lens and an apparatus for forming an ophthalmic lens, in particular a silicone hydrogel contact lens, wherein in a mold assembly a first and a second mold half (101, 102) are first arranged in an intermediate closed position in which the mold surfaces of the two mold halves are spaced apart from each other at a distance increase (d1) of preferably 1 to 100 ?m relative to a final distance (d0) in a final closed position, and wherein, during curing of the lens forming material (202), the mold surfaces (105, 106) of the mold halves (101, 102) are actively or passively moved or moving from the intermediate closed position to the final closed position, where the distance increase (d1) is 0.

Abstract: There is described a process for manufacturing an ophthalmic lens and an apparatus for forming an ophthalmic lens, in particular a silicone hydrogel contact lens, wherein in a mold assembly a first and a second mold half (101, 102) are first arranged in an intermediate closed position in which the mold surfaces of the two mold halves are spaced apart from each other at a distance increase (d1) of preferably 1 to 100 ?m relative to a final distance (d0) in a final closed position, and wherein, during curing of the lens forming material (202), the mold surfaces (105, 106) of the mold halves (101, 102) are actively or passively moved or moving from the intermediate closed position to the final closed position, where the distance increase (d1) is 0.

Abstract: A contact lens having nanoparticles integrated within, or deposited onto, the contact lens. A method for altering the optical density and spectral transmission or reflection response of a contact lens. The method includes obtaining a nanoparticle solution having a predetermined concentration. The method further includes exposing the contact lens in the nanoparticle solution for a predetermined period of time. A method for manufacturing a contact lens further includes exposing contact lens material to nanoparticles for a predetermined period of time to alter the optical density and spectral transmission or reflection response of the contact lens material. A contact lens may be formed after the material is exposed to the nanoparticles.

Abstract: Described herein are methods for imaging ocular devices. The methods generally involve (a) applying a scattering agent to the ocular device; and (b) imaging the ocular device using optical coherence tomography (OCT). The methods described herein provide useful structural information about the surface of the device with high sensitivity.

Abstract: There is described a process for manufacturing an ophthalmic lens and an apparatus for forming an ophthalmic lens, in particular a silicone hydrogel contact lens, wherein in a mold assembly a first and a second mold half (101, 102) are first arranged in an intermediate closed position in which the mold surfaces of the two mold halves are spaced apart from each other at a distance increase (d1) of preferably 1 to 100 ?m relative to a final distance (d0) in a final closed position, and wherein, during curing of the lens forming material (202), the mold surfaces (105, 106) of the mold halves (101, 102) are actively or passively moved or moving from the intermediate closed position to the final closed position, where the distance increase (d1) is 0.

Abstract: This invention relates to an apparatus and method for measuring the thickness of mold components and/or lenses during a manufacturing process. In particular, the present invention uses fiber optic interferometry to measure the center thickness of ophthalmic lenses created by a double-sided molding process.

Abstract: The invention relates to an apparatus and method for non-contact/non-destructive measurement of the geometry of molded ophthalmic lenses and the precision molds and tooling used in the manufacture of the ophthalmic lenses. In particular the present system uses micro computed tomography to measure the geometries.

Abstract: The present invention relates to a non-contact/non-destructive method and apparatus for measuring the thickness of an ophthalmic lens. The present invention also provides a method for inspecting or measuring the base curve of a lens.

Abstract: The present invention provides a method for converting a desired lens design to a geometry of a contact lens, preferably a customized contact lens or a contact lens having a complex surface design, to be produced in a computer-controlled manufacturing system.

Abstract: The present invention provides a contact lens having an orientation feature that does not provide an prism optical distortion and can maintain a predetermined orientation of the lens on an eye. A contact lens of the invention comprises an anterior surface and an opposite posterior surface. The anterior surface includes a vertical meridian, a horizontal meridian, a central optical zone, a blending zone extending outwardly from the central optical zone, a peripheral zone surrounding the blending zone, and an edge zone circumscribing and tangent to the peripheral zone. The presence of the blending zone ensures that the peripheral zone, the blending zone and the central optical zone are tangent to each other.