Method for optimizing an optical lens equipment for a wearer Method for optimizing an optical lens equipment for a wearer, the method comprising:an eye tracking device providing step, during which a spectacle frame mounted eye tracking device is provided to the wearer, a wearer parameter monitoring step, during which at least one parameter relating to the eyes of the wearer is monitored using the eye tracking device andan optimization step during which the optical lens equipment is optimized based at least partly on the base of the monitoring of the at least one parameter during the wearer parameter monitoring step.

Method to establish the size of the zones of near A.sub.c, far A.sub.L and intermediate A.sub.i vision of a progressive lens by generating, thanks to virtual reality, a gaze map of the user while following a stimulus in at least two planes at two different distances. Once the gaze maps have been made in those two planes or more, the area of each zone is calculated from the maximum horizontal and vertical amplitudes and the points of maximum frequency. In this way, the lens is adapted to the way a user looks.

A method for simulating an ophthalmic lens on an eye of a subject viewing a virtual scene using a light field display including a light field window. The method includes calculating a virtual ray between a point of the virtual scene and a point of an eye pupil plane, the virtual ray passing through a virtual lens and being defined on the basis of a model providing a deviation angle of the virtual ray through the virtual lens, repeating the calculating for a plurality of virtual rays passing through the virtual lens and joining couples of one point of the virtual scene and another point of the eye pupil plane, determining a light field representing a modified virtual scene, and generating the light field representing the modified virtual scene on the light field window towards the eye of the subject.

A progressive addition lens, a manufacturing method and a design method therefor, and a progressive addition lens manufacturing system, capable of flexibly adapting to an actual use state of a wearer and are optimal for each wearer, for determining a main line of sight considering not only convergence of the eye occurring with near vision including passive accommodative power but also convergence of the eye induced by using an accommodative power margin of the eye. The design method includes a first main line of sight calculation step of calculating a first main line of sight, where accommodative convergence caused by use of the accommodative power margin is considered, based on lens design information including at least information of accommodative power of the eye and a final main line of sight determination step of determining a final main line of sight of a lens from the first main line of sight.

Methods for augmented reality, and to lenses, systems and methods for improving visual comfort of a wearer equipped with a head-mounted device configured for display of information content.

A method for producing a customized progressive ophthalmic lens intended for a wearer having a prescription for a wearer's eye corresponding to said lens, the method comprising the following steps: a) providing an initial progressive ophthalmic lens design having a meridian line; b) providing binocular convergence data for the wearer; and c) modifying the initial design so that the meridian line is laterally shifted in position with respect to said initial design, for matching the convergence data provided at step b), for said prescription, and the modified design as resulting from step c) is used for the customized lens, wherein step b) comprises the following substeps: b1) providing a visual stimulus in a sagittal plane of the wearer; and b2) moving the visual stimulus within the sagittal plane between a predetermined maximum distance and a predetermined minimum distance.

An eyeglasses lens evaluation device includes a fixation point setting part to set a fixation point on an evaluation target space and set a line of sight passing position on eyeglasses lenses when a wearer wears the eyeglasses lenses and looks at the fixation point, an apparent position calculating part to calculate an apparent position of each of a plurality of evaluation points set on the evaluation target space in a state where the wearer wears the eyeglasses lenses and fixates the wearer's eyes on the fixation point via the line of sight passing positions, a difference calculating part to calculate, for each of the plurality of evaluation points, a difference between the apparent position and a reference position, and an evaluation index calculating part to calculate an evaluation index by taking statics of the difference for each of the plurality of evaluation points calculated by difference calculating part.

The present disclosure provides orthokeratology lenses and a manufacturing method thereof. The manufacturing method includes: acquiring parameters of diseased eyes; constructing a cornea model based on the parameters of the diseased eyes, and obtaining control point data of an orthokeratology lenses model according to the parameters of the diseased eyes and the cornea model; constructing the orthokeratology lenses model adaptively on a surface of the cornea model based on the control point data; and manufacturing orthokeratology lenses for the diseased eyes in accordance with the orthokeratology lenses model. By freely adjusting control points and changing a spline surface parameter, more customization requirements can be met.

A lens blank includes a first layer and a second layer. The first layer has an anterior surface and a posterior surface and is formed of a base material and one or more energy absorptive dyes generally uniformly dispersed throughout the base material. The one or more dyes are configured to absorb electromagnetic energy. The second layer is bonded or permanently attached to the posterior surface of the first layer and is formed of a generally clear base material.

A lens blank includes a first layer and a second layer. The first layer has an anterior surface and a posterior surface and is formed of a base material and one or more energy absorptive dyes generally uniformly dispersed throughout the base material. The one or more dyes are configured to absorb electromagnetic energy. The second layer is bonded or permanently attached to the posterior surface of the first layer and is formed of a generally clear base material.