Method for determining a dioptric parameter of an ophthalmic lens to be provided to a person

    公开(公告)号:AU2017300606B2

    公开(公告)日:2022-08-18

    申请号:AU2017300606

    申请日:2017-07-18

    Applicant: ESSILOR INT

    Abstract: Method for determining a dioptric parameter of a person, for example of an ophthalmic lens to be provided to a person, the method comprising: - a set-up step, during which a test optical element having a dioptric function having a specific value of the dioptric parameter to be determined is provided to the person and the person is required to look at a visual target using the test optical element, - a data collecting step, during which evaluation data and certitude data are collected, the evaluation data being indicative of the visual assessment expressed by the person looking at the visual target using the test optical element and certitude data being indicative of the degree of certainty of the person upon expressing the visual assessment, wherein the set-up and data collecting steps are repeated by varying the value of the dioptric parameter of the test optical element, and the method further comprises: - a global analyzing step, during which for each value of the dioptric parameter tested during the set-up and data collecting step a value a degree of certainty of the person is determined and the value of the dioptric parameter of the person is determined based on the values of degree of certainty of the person.

    Método para induzir uma variação controlada de acomodação em um olho de um indivíduo

    公开(公告)号:BR112021026418A2

    公开(公告)日:2022-02-08

    申请号:BR112021026418

    申请日:2020-07-02

    Applicant: ESSILOR INT

    Abstract: método para introduzir uma variação controlade de acomodação em um olho de um indivíduo. apresente invenção refere-se a um método para induzir uma variação controlada de acomodação em um olho de um indivíduo, usando um sistema óptico disposto na frente de pelo menos um olho do indivíduo e compreendendo as seguintes etapas: a) exibir um cenário ambiental (1), b) exibir, neste cenário ambiental (1) exibido na etapa a), um alvo (2) visível pelo indivíduo através do referido sistema óptico, o referido alvo (2) sendo exibido de tal forma que seja percebido pelo indivíduo como estando se movendo para longe do referido indivíduo ou se movendo em direção ao referido indivíduo, dentro do referido cenário ambiental, c) fazer com que o indivíduo observe o referido alvo (2) móvel exibido na etapa b).

    METHOD FOR INDUCING A CONTROLLED VARIATION OF ACCOMMODATION IN AN EYE OF A SUBJECT

    公开(公告)号:CA3144897A1

    公开(公告)日:2021-01-14

    申请号:CA3144897

    申请日:2020-07-02

    Applicant: ESSILOR INT

    Abstract: The invention relates to a method for inducing a controlled variation of accommodation in an eye of a subject, using an optical system arranged in front of at least one eye of the subject and comprising the following steps: a) displaying an environmental scene (1), b) displaying, in this environmental scene (1) displayed in step a), a target (2) visible by the subject through said optical system, said target (2) being displayed in such a way that it is perceived by the subject as moving away from said subject or moving towards said subject within said environmental scene, c) having the subject observe said moving target (2) displayed in step b).

    APPAREIL ET PROCEDE DE MESURE DE REFRACTION OCULAIRE SUBJECTIVE DE HAUTE RESOLUTION EN PUISSANCE OPTIQUE SPHERIQUE ET/OU CYLINDRIQUE

    公开(公告)号:FR3059537B1

    公开(公告)日:2019-05-17

    申请号:FR1662083

    申请日:2016-12-07

    Applicant: ESSILOR INT

    Abstract: L'invention concerne un appareil de mesure de réfraction oculaire subjective comprenant un dispositif de visualisation configuré pour afficher au moins un optotype et un système optique réfractif (11, 21) disposé entre un œil d'un observateur et le dispositif de visualisation, le système optique réfractif ayant une puissance optique variable suivant un pas minimum déterminé. Selon l'invention, le dispositif de visualisation comporte en outre des moyens supplémentaires de variation de puissance optique adaptés pour générer une variation de puissance optique sphérique et/ou cylindrique de manière à ce que le dispositif de visualisation et le système optique réfractif forment une première image de l'optotype avec une première puissance optique totale et, respectivement, une deuxième image de l'optotype avec une deuxième puissance optique totale, la variation de puissance optique entre la première puissance optique totale et la deuxième puissance optique totale étant inférieure au pas minimum déterminé.

    A METHOD FOR PROVIDING A SPECTACLE OPHTHALMIC LENS BY CALCULATING OR SELECTING A DESIGN

    公开(公告)号:CA2779557C

    公开(公告)日:2019-02-26

    申请号:CA2779557

    申请日:2010-11-15

    Applicant: ESSILOR INT

    Abstract: A method for providing a spectacle ophthalmic lens to a wearer, the method comprising the following consecutive steps: measuring the visual acuity value(s), VA, of the eye(s) of the wearer or the binocular visual acuity value, VAbino, of both eyes of the wearer where the eye(s) of the wearer is (are) substantially free of low order aberrations or is (are) corrected of low order aberrations; calculating thanks to computer means a design of the spectacle ophthalmic lens or selecting a design in a spectacle ophthalmic lens design data base by adapting the management of residual astigmatism based on the measured visual acuity value(s) of the eye(s) of the wearer.

    METHOD FOR DETERMINING ASTIGMATISM OF AN EYE OF A PERSON

    公开(公告)号:CA3060367A1

    公开(公告)日:2018-11-08

    申请号:CA3060367

    申请日:2018-05-02

    Applicant: ESSILOR INT

    Abstract: Method for determining the cylinder of an ophthalmic lens to be mounted on a spectacle frame, the method comprising -a measuring device providing step during which a measuring device adapted to run a Jackson cross cylinder procedure is provided, -a first vector determining step, during which the components of a first vector of the cylinder in a two-dimensional vector cylinder representation are determined, -a second vector determining step, during which the components of a second vector of the cylinder in the two-dimensional vector cylinder representation are determined wherein the second vector components being determined such that the Euclidian distance between first and second vector is independent of the value of the cylinder.

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