Method for providing a spectacle ophthalmic lens by calculating or selecting a design
AssigneeEssilor International (Compagnie Generale d'Optique)
InventorsGildas Marin, Martha Hernandez, Thierry Bonnin
Life of this patent
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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.
Claims14
A method, at least partly implemented by one or more computers, for providing a spectacle ophthalmic lens to a wearer, the method comprising:
- a) providing the wearer with an ophthalmic correction device so as to correct a low order (spherical and/or cylindrical) aberration of an eye of the wearer if said aberration is greater than 0.25 Diopter;
- b) measuring a visual acuity value of the eye of the wearer or a binocular visual acuity value of both eyes of the wearer where the eye of the wearer is substantially free of low order aberrations or is corrected according to step a);
- and
- c) calculating, using the one or more computers, a design of the spectacle ophthalmic lens or selecting a design in a spectacle ophthalmic lens design data base by adapting management of residual astigmatism based on the measured visual acuity value of step b), wherein the residual astigmatism is a difference between an astigmatism of the lens and a prescribed astigmatism corresponding to the aberration of the eye.
A method for manufacturing a spectacle ophthalmic lens for a wearer, the method comprising:
- a) providing the wearer with an ophthalmic correction device so as to correct a low order (spherical and/or cylindrical) aberration of an eye of the wearer if said aberration is greater than 0.25 Diopter;
- b) measuring a visual acuity value of the eye of the wearer where the eye of the wearer is substantially free of low order aberrations;
- c) calculating, using the one or more computers, a design of the spectacle ophthalmic lens or selecting a design in a spectacle ophthalmic lens design data base by adapting management of residual astigmatism based on the measured visual acuity value of the eye of the wearer and thus providing a personalized optical system for the wearer;
- d) providing a lens substrate;
- and
- e) manufacturing the spectacle ophthalmic lens according to the optical system corresponding to the calculated or selected design in step c), wherein the residual astigmatism is a difference between an astigmatism of the lens and a prescribed astigmatism corresponding to the aberration of the eye.
A non-transitory computer-readable medium including one or more sequences of instructions that, when executed, cause one or more processors to implement at least one step of a method comprising:
- a) providing the wearer with an ophthalmic correction device so as to correct a low order (spherical and/or cylindrical) aberration of an eye of the wearer if said aberration is greater than 0.25 Diopter;
- b) measuring a visual acuity value of the eye of the wearer or a binocular visual acuity value of both eyes of the wearer where the eye of the wearer is substantially free of low order aberrations or is corrected according to step a);
- c) calculating, using the one or more computers, a design of the spectacle ophthalmic lens or selecting a design in a spectacle ophthalmic lens design data base by adapting management of residual astigmatism based on the measured visual acuity value of step b), wherein the residual astigmatism is a difference between an astigmatism of the lens and a prescribed astigmatism corresponding to the aberration of the eye.
A non-transitory computer-readable medium including one or more sequences of instructions that, when executed, cause one or more processors to implement at least one step of a method comprising:
- a) providing the wearer with an ophthalmic correction device so as to correct a low order (spherical and/or cylindrical) aberration of an eye of the wearer if said aberration is greater than 0.25 Diopter;
- b) measuring a visual acuity value of the eye of the wearer where the eye of the wearer is substantially free of low order aberrations;
- c) calculating, using the one or more computers, a design of the spectacle ophthalmic lens or selecting a design in a spectacle ophthalmic lens design data base by adapting management of residual astigmatism based on the measured visual acuity value of the eye of the wearer and thus providing a personalized optical system for the wearer;
- d) providing a lens substrate;
- and
- e) manufacturing the spectacle ophthalmic lens according to the optical system corresponding to the calculated or selected design in step c), wherein the residual astigmatism is a difference between an astigmatism of the lens and a prescribed astigmatism corresponding to the aberration of the eye.
Dependencies are inferred from the claim text.