The lens comprises: a first transparent substrate that includes a diffraction region in which a plurality of convex strips and groove sections are formed in alternation in concentric circles; a second transparent substrate that faces the first transparent substrate; a liquid crystal layer disposed in a space present between the diffraction region and the second transparent substrate; and a first transparent electrode and a second transparent electrode that impress a voltage on the liquid crystal layer. The diffraction region comprises a first diffraction region and a second diffraction region that is disposed in at least part of a portion different from the first diffraction region. The space comprises: groove-shaped spaces present between the groove sections and the second transparent substrate; and a communicating space disposed between at least part of the convex shapes of the second diffraction region and the second transparent substrate, and communicating between neighboring groove-shaped spaces.

A method implemented by computer means for determining an optical function of an ophthalmic lens adapted to a wearer, the method comprising: a wearer data providing step, during which wearer data comprising at least an indication of the hearing sensitivity of the wearer and an indication of the ophthalmic prescription of the wearer are provided, an optical function determining step, during which an optical function adapted to the wearer is determined based at least on the wearer data.

A method for assessing the similarity between a power profile of a manufactured optic device and a nominal power profile upon which the power profile of the manufactured optic device is based. The method comprises measuring the power profile of manufactured optic device, identifying a region of interest from the measured power profile of manufactured optic device, and applying an offset to the measured power profile to substantially minimize a statistical quantifier for quantifying the similarity between the nominal power profile and the offset measured power profile. The method further comprises comparing the offset and the statistical quantifier to predefined quality control metrics, determining whether the measured power profile meets the predefined quality control metrics based, at least in part on the comparison. In exemplary embodiments, the method may further comprise determining whether to associate the manufactured optic device with another nominal power profile, if the measured power profile does not meet the predefined quality control metrics.

Provided are a resin molded body and applications thereof. The resin molded body includes a resin layer containing a resin and a compound represented by Formula (1), and on at least one surface of the resin layer, a protective layer that contains at least one substance selected from the group consisting of urethane resin, acrylic resin, and polysiloxane. In Formula (1), Het.sup.1 represents a divalent 5-membered or 6-membered aromatic heterocyclic residue. X.sup.a, X.sup.b, X.sup.c, and X.sup.d each independently represent a hetero atom, and Y.sup.a, Y.sup.b, Y.sup.c, Y.sup.d, Y.sup.e, and Y.sup.f each independently represent a hetero atom or a carbon atom. A ring bonded to Het.sup.1 may have a double bond at any position.

A method of calculating an optical system (OS) of an ophthalmic lens according to a given spectacle frame, said ophthalmic lens comprising a back surface (BS) and a front surface (FS) arranged to deliver an ophthalmic vision image (VI), a light-guide optical element having a proximal surface (PS) and a distal surface (DS), said light-guide optical element being arranged to output a supplementary image (SI), wherein the method comprises the steps of: providing at least a morpho-geometrical parameter data of the frame or of the light-guide optical element; optimizing the optical system (OS) according to at least the morpho-geometrical parameter data as a target.

Devices/techniques coupleable to patient sensors, ambient environment, and external sensory input. Devices/techniques receive/maintain information; correlate received/maintained information with measures associated with detecting/monitoring, predict, prevent/treat, and train/reward patient self-care, for dry eyes. Devices/techniques detect/monitor, predict, and prevent/treat dry eyes in real time; and train/reward patients to conduct self-care for dry eyes. The devices/techniques provide adjusted sensory inputs to prevent/treat dry eyes, or to train/reward patients to conduct self-care for dry eyes. The devices/techniques cooperate with other devices, including devices worn by nearby patients, to receive/maintain information about the ambient environment, or communicate with medical personnel. The devices/techniques adjust parameters they use, in response to received information that differs from predictions, to provide superior behavior, and communicate with other devices and medical personnel. Devices/techniques are combined with devices/techniques that perform similar functions for other conditions, migraines/photophobia, neuro-opthalmic disorders, and other ocular conditions, and for combinations of dry eyes with other conditions.

Devices/techniques coupleable to patient sensors, ambient environment, and external sensory input. Devices/techniques receive/maintain information; correlate received/maintained information with measures associated with detecting/monitoring, predict, prevent/treat, and train/reward patient self-care, for dry eyes. Devices/techniques detect/monitor, predict, and prevent/treat dry eyes in real time; and train/reward patients to conduct self-care for dry eyes. The devices/techniques provide adjusted sensory inputs to prevent/treat dry eyes, or to train/reward patients to conduct self-care for dry eyes. The devices/techniques cooperate with other devices, including devices worn by nearby patients, to receive/maintain information about the ambient environment, or communicate with medical personnel. The devices/techniques adjust parameters they use, in response to received information that differs from predictions, to provide superior behavior, and communicate with other devices and medical personnel. Devices/techniques are combined with devices/techniques that perform similar functions for other conditions, migraines/photophobia, neuro-opthalmic disorders, and other ocular conditions, and for combinations of dry eyes with other conditions.

A contact lens for application in practice of orthokeratology on an eye, including a curved shell having a concave surface and a convex surface. The concave surface includes a carrier zone and a back shaping zone, the back shaping zone having a first curvature and the carrier zone having at least one second curvature. The curved shell has a geometric center and the back shaping zone has a shaping zone center and the back shaping zone center is offset peripherally from the geometric center. The curved shell can have an overall diameter that approximates a corneal limbal diameter of the eye to which the contact lens is to be applied.

A contact lens for application in practice of orthokeratology on an eye, including a curved shell having a concave surface and a convex surface. The concave surface includes a carrier zone and a back shaping zone, the back shaping zone having a first curvature and the carrier zone having at least one second curvature. The curved shell has a geometric center and the back shaping zone has a shaping zone center and the back shaping zone center is offset peripherally from the geometric center. The curved shell can have an overall diameter that approximates a corneal limbal diameter of the eye to which the contact lens is to be applied.

The disclosure describes an electrowetting contact lens comprising including an electrowetting cell. The cell includes first and second optical windows that form a sealed enclosure. A first electrode is formed on the first optical window, and a second electrode is formed on the second optical window. The first and second electrodes include an electrically conductive layer, and the first electrode includes at least one dielectric layer sandwiched between the relevant optical window and the at least one dielectric layer. Oil and saline layers are positioned in the sealed enclosure so that the oil is in contact with one electrode and the saline is in contact with the other electrode. A protective coating encloses the electrowetting cell, and a contact lens material encloses the sealing material. Other embodiments are disclosed and claimed.