Abstract: Eyewear (1) for a subject having an eye provided with a myopia control solution, said myopia control solution inducing a temporal variation of an ocular feature of said eye, said eyewear comprising: —at least one ophthalmic lens (100) having an adjustable optical feature, to be placed in front of said eye of said subject for improving the vision of the subject; —a control unit (200), comprising one or more memories (220) and one or more processors (210), adapted to control said ophthalmic lens by setting said adjustable optical feature to a current value (CV); said one or more memories having in memory data (221) relative to said temporal variation of said ocular feature of said eye, said one or more processors being programmed to determine said current value of said adjustable optical feature based on said data.

Abstract: The invention relates to a method for determining an ophthalmic lens for a wearer and suitable for correcting the wearer's vision, comprising c) determining a virtual lens by an optimization process involving calculating iteratively a surface of the virtual lens so as to match target optical characteristics of a target lens, checking whether peripheral defocus values of the virtual lens satisfy a predetermined criterion, and if the predetermined criterion is not satisfied, reiterating the calculation of the surface of the virtual lens after modifying the target lens of the previous iteration. The determined ophthalmic lens is defined as being the virtual lens at the end of the optimization process. The invention also relates to an ophthalmic lens for a wearer for correcting the wearer's vision and intended to reduce peripheral defocus.

Abstract: A calculation module, system, and computer-implemented method for determining at least one cause of a visual fatigue of a patient. The calculation module obtains values associated respectively with physiological parameters of the patient, obtains causality coefficients associated respectively with the physiological parameters, normalizes the values to obtain normalized values associated respectively with the physiological parameters, determines normalized scores associated respectively with the physiological parameters, based on the causality coefficients and the normalized values, and selects at least one of the physiological parameters, using the normalized scores, as the at least one cause of the visual fatigue.

Abstract: An optical article includes a front face adapted to receive incident optical beams and a back face through which transmitted optical beams exit to reach an eye, wherein the front face includes an interferential multilayer coating including a stack of dielectric layers. The interferential multilayer coating provides the optical article with a mean visible light reflection factor Rv that is lower than or equal to 2.0% over a range of angle of incidence included between 0 and 20 degrees, and that is higher than or equal to 2.0% over a range of angle of incidence included between 40 degrees and 60 degrees, the optical article having a higher mean visible light transmittance for low incidence angles and a lower mean visible light transmittance for high incidence angles.

Abstract: A computer-implemented method, an apparatus, a system and a computer program for controlling a sightedness impairment of a subject, the method comprising the steps of receiving (201) an image to display to the subject, determining (202) a spatial frequency power spectrum of the received image, generating (203) an intermediate image by modifying a slope of the spatial frequency power spectrum of the received image, generating (204) a modified image based on the intermediate image and commanding (205) a display to the subject of the modified image.

Abstract: An optical lens intended to be worn in front of an eye of a wearer having at least one prescribed refractive power Px. The optical lens includes a refraction area having a refractive power based on the prescribed refractive power Px for the eye of the wearer and including at least the central zone of the optical lens, and a plurality of optical elements having an optical function of not focusing an image on the retina of the eye of the wearer. The optical elements are arranged based at least on the prescribed refractive power Px and the shape of the retina of the wearer.

Abstract: An aspect of the disclosure relates to a method of determining an attitude of an eyewear. The method may include: detecting a light signal reflected from the eyewear with a digital device including a light sensor for a non-visible wavelength range; and calculating, using the light signal, an attitude of the eyewear. The attitude may be at least one of: a yaw angle, a pitch angle, a roll angle. A second aspect of the disclosure relates to an eyewear including at least a first lens. The first lens may include a first coating having reflection in the non-visible range of wavelengths. The first coating may further include a pattern with an orientation. A third aspect of the disclosure relates to a computer program product including instructions, which, when the program is executed by a digital device, causes the digital device to carry out the method.

Abstract: A method for obtaining an optical prescription. The method includes determining a value of a fatigue parameter for at least two intermediate optical prescriptions among a plurality of intermediate optical prescriptions, the fatigue parameter associated with a visual fatigue level of a subject carrying out a visual task involving any kind of visual content, wherein each determined value of the fatigue parameter is associated with a respective one of the plurality of intermediate optical prescriptions; comparing the determined values of the fatigue parameter; and obtaining the optical prescription, based on the comparison of the determined values of the fatigue parameter. A system for obtaining an optical prescription is also disclosed.

Abstract: The invention relates to a method for determining an ophthalmic lens for a wearer and suitable for correcting the wearer's vision, comprising c) determining a virtual lens by an optimization process involving calculating iteratively a surface of the virtual lens so as to match target optical characteristics of a target lens, checking whether peripheral defocus values of the virtual lens satisfy a predetermined criterion, and if the predetermined criterion is not satisfied, reiterating the calculation of the surface of the virtual lens after modifying the target lens of the previous iteration. The determined ophthalmic lens is defined as being the virtual lens at the end of the optimization process. The invention also relates to an ophthalmic lens for a wearer for correcting the wearer's vision and intended to reduce peripheral defocus.

Abstract: An eyewear, including a first receptacle and a second receptacle; a first lens element received in the first receptacle; and a light sensor configured to detect incident light and provide a sensor signal based on the detected incident light. The eyewear further includes an analysis module. The analysis module is operably coupled to the light sensor to receive the sensor signal from the light sensor, and operably coupled to the variable optical filter structure to provide a control signal to the variable optical filter structure. The analysis module is configured to control the optical state of the variable optical filter structure thereby adjusting an illuminance ratio of light transmitted by the first lens element to light transmitted at a position of the second receptacle. Further provided is a method for adjusting a variable optical filter system for an eyewear, and a method and computer program for controlling the eyewear.

Abstract: A method for determining an optical design of a pair of progressive addition lenses to be worn in front of eyes of a wearer, including selecting a starting pair of progressive addition lenses suitable for the near dioptric corrections and the far dioptric corrections; determining, for a given locomotion posture of the wearer, in which the wearer wears the starting pair of progressive addition lenses, a set of differences in prismatic deviation induced by the starting pair of progressive addition lenses between a left eye and a right eye of the wearer over a set of gaze directions; and determining said optical design based on the near and far dioptric corrections, the set of differences, and at least one binocular motility parameter.

Abstract: A computer-implemented method, an apparatus, a system and a computer program for controlling a sightedness impairment of a subject, the method comprising the steps of receiving (201) an image to display to the subject, determining (202) a spatial frequency power spectrum of the received image, generating (203) an intermediate image by modifying a slope of the spatial frequency power spectrum of the received image, generating (204) a modified image based on the intermediate image and commanding (205) a display to the subject of the modified image.

Abstract: An optical lens intended to be worn in front of an eye of a wearer having at least one prescribed refractive power Px. The optical lens includes a refraction area having a refractive power based on the prescribed refractive power Px for the eye of the wearer and including at least the central zone of the optical lens, and a plurality of optical elements having an optical function of not focusing an image on the retina of the eye of the wearer. The optical elements are arranged based at least on the prescribed refractive power Px and the shape of the retina of the wearer.

Abstract: The disclosure concerns a system and methods for detecting a body response to a visual stimulus. The system includes an eyewear delivering a left visual stimulus via a left side of the eyewear and a right visual stimulus via a right side of the eyewear. The system further includes a sensor configured to measure a body posture of a subject's body when the subject is wearing the eyewear. The system further includes a controlling circuit operably coupleable to the eyewear and to the sensor, so that when operably coupled, the controlling circuit: receives measurements of the body posture from the sensor, provides a body posture response information based on the measurements of the body posture, and determines a deviation of the body posture response information to a reference, where the reference is based on the left visual stimulus and the right visual stimulus.

Abstract: Eyewear (1) for a subject having an eye provided with a myopia control solution, said myopia control solution inducing a temporal variation of an ocular feature of said eye, said eyewear comprising: —at least one ophthalmic lens (100) having an adjustable optical feature, to be placed in front of said eye of said subject for improving the vision of the subject: —a control unit (200), comprising one or more memories (220) and one or more processors (210), adapted to control said ophthalmic lens by setting said adjustable optical feature to a current value (CV); said one or more memories having in memory data (221) relative to said temporal variation of said ocular feature of said eye, said one or more processors being programmed to determine said current value of said adjustable optical feature based on said data.

Abstract: An optical article includes a front face adapted to receive incident optical beams and a back face through which transmitted optical beams exit to reach an eye, wherein the front face includes an interferential multilayer coating including a stack of dielectric layers. The interferential multilayer coating provides the optical article with a mean visible light reflection factor Rv that is lower than or equal to 2.0% over a range of angle of incidence included between 0 and 20 degrees, and that is higher than or equal to 2.0% over a range of angle of incidence included between 40 degrees and 60 degrees, the optical article having a higher mean visible light transmittance for low incidence angles and a lower mean visible light transmittance for high incidence angles.

Abstract: An eyewear for a user seeing an image when wearing the eyewear. The eyewear may include a light adjusting means configured to provide a projection light which is perceived by a user's eye when facing a first surface of the light adjusting means, such that the user may see a modified image which is modified from an original image. The light adjusting means may be configured to provide a modified amount of positive contrast signal, for a retina of an eye of the user, in the modified image as compared to the original image.

Abstract: A method of evaluating the efficiency of a myopia control solution for a person. The method includes providing an initial value of a prolateness indicator of at least one eye of the person, determining a second value of the prolateness indicator of the at least one eye of the person after having the person use the myopia control solution over a given period of time, and evaluating the efficiency of the myopia control solution by comparing the evolution between the initial and second values of the prolateness indicator of the at least one eye with a value of reference.

Abstract: This computer-implemented method for providing an automated prediction of a change of a state of fatigue of a subject carrying out a visual task involving any kind of visual content comprises: providing a plurality of input data, relating to the subject, to a fatigue state change predictive model, wherein the plurality of input data comprises at least one subjective measurement relating to the subject and/or at least one objective measurement relating to the subject and/or at least one other subject-related datum; obtaining, by a processor implementing the model, a value representing a level of change of the state of fatigue of the subject.

Abstract: An illumination system adapted for an eyewear that includes a light source configured to emit a first light including a power spectrum having full width at half maximum of less than 100 nm in a first range of wavelengths and a second light including a power spectrum having full width at half maximum of less than 100 nm in a second range of wavelengths, the power spectrum of the first light and the power spectrum of the second light differ from each other, and the light source is further configured to emit pulses of light with a pre-determined time function. The pre-determined time function comprises a plurality of packets, each packet of the plurality of packets being followed by a packet interval, and each packet including a pulse alternation between a pulse of the first light and a pulse of the second light.