Abstract: An optical device including an active programmable lens having an adjustable optical power depending on a prescription of a wearer and being relative to a vision distance and/or direction of an eye of the wearer, a vision sensor adapted to measure vision data relating to the vision distance and/or direction of the eye, and an optical power controller that includes a memory storing computer executable instructions and adapted to store measured vision data and two predetermined optical power states corresponding to an optical power relative to a range of vision distance and/or direction of the eye, and a processor for executing the stored computer executable instructions, which include instructions for adjusting the adjustable optical power between the predetermined optical power states with a resolution smaller than or equal to 0.25D when the vision data passes from one range of vision distance and/or direction to another.

Abstract: An optical device including an active programmable lens having an adjustable optical power depending on a prescription of a wearer and being relative to a vision distance and/or direction of an eye of the wearer, a vision sensor adapted to measure vision data relating to the vision distance and/or direction of the eye, and an optical power controller that includes a memory storing computer executable instructions and adapted to store measured vision data and two predetermined optical power states corresponding to an optical power relative to a range of vision distance and/or direction of the eye, and a processor for executing the stored computer executable instructions, which include instructions for adjusting the adjustable optical power between the predetermined optical power states with a resolution smaller than or equal to 0.25 D when the vision data passes from one range of vision distance and/or direction to another.

Abstract: An apparatus for detecting mis-adaptation of an optical device to a wearer includes processing circuitry configured to receive and store over time head data relative to the head of the wearer when wearing and using the optical device, process the head data based on head data patterns associated with known mis-adaptation of an optical device to the wearer of said optical device, and detect mis-adaptation of the optical device to the wearer by matching the received and stored head data with head data patterns associated with mis-adaptation.

Abstract: A lens element intended to be worn in front of an eye of a wearer including at least a first and a second set of optical elements providing respectively a first and a second optical function. When worn by a wearer, an optical element of the first set is located at a greater distance from the center of rotation of the eye than an optical element of the second set. At least some optical elements of the second set are disposed with respect to the optical elements of the first set of the lens element to provide according to a respective first and a second gaze direction on different zones of the retina of the eye of the wearer distinct cumulative optical effects.

Abstract: A lens element intended to be worn in front of an eye of a wearer having at least a first and a second set of optical elements providing respectively a first and a second optical function. When worn by a wearer, an optical element of the first set is located at a greater distance from the center of rotation of the eye than an optical element of the second set. At least some of the optical elements of the first set and the second set are disposed in a mutual relationship in such a way that, for at least one gaze direction, a first and a second cumulative optical effect are provided at the same time for respective at least first and second incoming light beams.

Abstract: A system for determining refraction features of both first and second eyes of a subject including a light field display device, a system of localization of the positions of the first and second eyes of the subject, the light field display device generating a first light field directed selectively toward the first eye, and, respectively, a second light field directed selectively toward the second eye, control circuitry that adjusts the first light field as a function of at least a first refraction parameter associated with at least a first optical aberration for the first eye and the control circuitry adjusting said second light field as a function of at least a second refraction parameter associated with at least a second optical aberration for the second eye.

Abstract: The invention relates to an optical device (10) adapted to be worn by a wearer comprising at least: —a programmable lens (20) having an adjustable optical function and extending between at least one eye of the wearer and the real world scene when the optical device is worn by the wearer, —an optical function controller (30) comprising —a memory (32) storing at least computer executable instructions; and —a processor (34) for executing the stored computer executable instructions so as to control the optical function of the programmable lens (20), wherein the computer executable instructions comprise instructions for adjusting the optical function of the programmable lens (20) over a period of time determined so that the wearer does not perceive the adjustment of the optical function.

Abstract: A method for determining a position variation of an eyewear equipment worn by a wearer includes obtaining reference data representing a reference position of an eyewear equipment worn by the wearer, the eyewear equipment including at least one ophthalmic lens and a frame on which the at least one ophthalmic lens is mounted, determining at least one reference position parameter indicative of a reference position of the eyewear equipment on the face of the wearer based on the reference data, obtaining current data representing a current position of the eyewear equipment worn by the wearer, determining at least one current position parameter indicative of a current position of the eyewear equipment in front of the eyes of the wearer based on the current data, and comparing the reference and current positions parameters to determine a position variation of the eyewear equipment worn by the wearer.

Abstract: Disclosed is a method for determining an eye parameter of a user of a display device, the eye parameter relating to a dioptric parameter of an ophthalmic lens to be provided to the user, the method including: a display device providing step, during which a binocular display device is provided to the user,—an image display step, during which an image is displayed to the user when using the display device; a display parameter modifying step, during which at least one parameter of the display device is modified so as to modify the virtual display distance of the perceived image, wherein the display parameter modifying step is repeated until image subjective quality of the perceived image is perceived by the user as optimal; and an eye parameter determining step during which an eye parameter is determined based on the parameter of the display device.

Abstract: An ophthalmic set for myopia progression control comprises spectral filtering means arranged for being effective on light that enters a user's eye. The spectral filtering means selectively reduce blue-green light intensity, and possibly also amber light intensity. Preferably, said spectral filtering means are combined with wavefront modifying means within the ophthalmic set for increased efficiency in slowing-down myopia progression for the user. In possible embodiments, the spectral filtering means and wavefront modifying means are combined in spectacle lenses (1, 2), and the wavefront modifying means are comprised of microlenses (21) or light-diffusing elements.

Abstract: An ophthalmic set for myopia progression control includes a first component suitable for varying an amount of light that has wavelength values included in a modulation spectral range and enters an eye of a user. It further includes a control unit configured for controlling the first component so that light with wavelength values in the modulation spectral range enters the user's eye with varied intensity during daytime. The first component may include light sources and/or spectral filters, in particular arranged so as to be fitted on the user's face during appropriate durations. Preferably, light with wavelength values included between 360 nm and 520 nm, or between 440 nm and 520 nm, is increased in the morning and reduced in the evening.

Abstract: A system, method, and computer readable medium for determining at least one feature of at least one lens mounted in a spectacle frame. The system includes a non-point light pattern generating device configured to generate a predefined non-point light pattern, and arranged to have the predefined non-point light pattern reflected on the at least one lens, an image acquisition device configured to acquire an image of the spectacle frame including an image of the reflected non-point light pattern, and a processing unit configured to determine at least the contour of the at least one lens in function of at least one feature of the image of the reflected non-point light pattern.

Abstract: A method for determining an ophthalmic lens adapted to a wearer, including: providing wearer data including at least an indication of a prescription of the wearer; providing a locomotion scenario including at least an input locomotion parameter and visual environment data indicative of a visual environment, the locomotion parameter including at least movement data indicative of at least translation movements of the wearer's head; providing an output parameter of a locomotion parameter of the wearer or an optical parameter of the ophthalmic lens having an impact on a locomotion parameter of the wearer; determining an ophthalmic lens adapted to the wearer based at least on the wearer data to have the output parameter as close as possible to the target value of the output parameter when carrying out the locomotion scenario using the ophthalmic lens, wherein the output parameter is retinal flow of the wearer.

Abstract: A device for simulating a behavior of a mammal in an environment by a virtual mammal includes a mobile head and at least one mobile eye including a first input for successive data representative of eye poses, a second input for mobility action instructions, a memory for storing information on the environment and on stabilization constraints, at least one processor assessing a current part of the environment and recording information on said current part, triggering successive movements of the head and of the eye(s) in function of said mobility action, controlling a dynamic adjustment of the successive movements of the eye(s) with respect to the successive movements of the head in function of the successive data and by using the stabilization constraints. The device further comprises a third input for training data representative of a training movement sequence of the head and the eye(s) associated with a training environment.

Abstract: Disclosed is a method for determining an optical system intended to equip a subject, the method including the steps of: —determining an index of sensitivity indicating, when the subject is placed in an environment including surfaces and/or borders forming globally a geometry of this environment; and landmarks associated with specific locations within the environment, how the subject relies on the global geometry and/or on the local landmarks of the environment to navigate within the environment; and—determining the optical system based on this index of sensitivity. The invention also relates to an ophthalmic lens and to an ophthalmic filter determined by such method.

Abstract: A device for evaluating a performance of a target visual equipment for a visual task includes: at least one input adapted to obtain data) representative as a function of time of measurements of at least one parameter associated with an initial wearer of an initial visual equipment performing the task in a scene, obtain a model of the scene, of a target wearer; at least one processor configured for virtually performing the task with the target equipment by using the scene and target wearer models, and by applying the representative data) as a function of time to the target wearer model; determining, on the basis of the virtual performing, at least one parameter of interest; providing the same, to determine to which extent the target equipment is appropriate for the target wearer, by evaluating the performance of the target equipment as a function of the parameter of interest.

Abstract: This method for predicting at least one eye gazing parameter of a person wearing visual equipment includes steps of: measuring data of at least two individuals wearing visual equipment, such data including at least head motion parameters and eye gazing parameters of the individuals; measuring head motion parameters of the person in real-life conditions; comparing the head motion parameters of the person with the head motion parameters of the at least two individuals; and predicting the at least one eye gazing parameter of the person at least on the basis of the results of the comparing step and of the eye gazing parameters of the at least two individuals.

Abstract: Disclosed is a measurement method for determining a value of a visual correction need for near vision of an individual in a natural posture for near vision. A recognizing limit distance is determined so that the individual is able to recognize at least one predetermined symbol farther than the limit distance relatively to the individual and unable to recognize the at least one predetermined symbol closer to the individual than the limit distance. A portable medium displaying the predetermined symbol is displaced in front of the face and eyes of the individual to change a frontal distance between his/her eyes and the portable medium and in which when a recognizing limit distance is detected by the individual, the limit distance is measured and the value of the visual correction need is determined from the measured limit distance, wherein the visual correction need includes an accommodation compensation need.

Abstract: Disclosed is a method including the steps of: a) illuminating a pupil of the eye of a subject by a light source; b) acquiring at least one picture of the pupil including an image of the reflection of the light source on the retina of the eye, by means of an image-capture apparatus; and c) and determining a refraction feature of the eye from at least a geometrical feature, a positional feature, or an intensity distribution of the image of the reflection of the light source. Optical distances between the pupil and, respectively, the light source and the image-capture apparatus, are different. An associated device is also described.

Abstract: A method for determining a component of an ophthalmic equipment, the method including acquiring a set of parameter values relating to the given wearer, processing the acquired set of parameter values to infer a group, the given wearer belonging to the inferred group and the inferred group belongs to a plurality of pre-established groups, the pre-established groups being elaborated based on respective sets of parameter values of a plurality of reference wearers. The method further including determining, based on the inferred group, at least a feature enabling to determine a component of an ophthalmic equipment of the given wearer, and determining a component of an ophthalmic equipment to be used by the wearer based on the at least a determined feature, each set of parameters values of the plurality of reference wearers including parameter values belonging to at least two distinct categories.