Essilor International

Essilor International (Compagnie Generale D'optique)

Carlos Dorronsoro

Gildas Marin

Martha Hernandez

Laurent Calixte

Susana Marcos Celestino

Susana Marcos

Mirian Velasco

Pablo De Gracia Pacheco

A method for determining an ophthalmic lens having unwanted astigmatism, the ophthalmic lens being adapted to a wearer, the method including: a wearer prescription data providing during which wearer prescription data indicative of an ophthalmic prescription of the wearer are provided; a wearer focal data providing during which wearer focal data indicative of the wearer preferred image focal plan are provided; an ophthalmic lens determining during which the ophthalmic lens is determined based on the prescription of the wearer and the wearer focal data to reduce impact of unwanted astigmatism of the ophthalmic lens for the wearer.

Method for determining an ophthalmic lens having unwanted astigmatism

A method implemented by computer means for optimizing the design of a spectacle ophthalmic lens comprising: a) providing the residual astigmatism value and orientation data of a spectacle ophthalmic lens design for at least one gaze direction; b) providing the astigmatism and coma values and orientations data of an eye of a wearer; c) providing an optimized spectacle ophthalmic lens comprising adapting the management of astigmatism and coma of an lens-eye system based on a combination of the astigmatism and coma of the lens-eye system so as to improve the acuity versus distortion for the wearer's eye and where the lens-eye system consists of the spectacle ophthalmic lens design and the wearer's eye, with the proviso that the RMS value of the astigmatism of the lens-eye system is equal or greater to 0.025 &#x3bc;m and that the RMS value of the coma of the lens-eye system is equal or greater to 0.025 &#x3bc;m. A computer program product carrying out at least one of the steps.

Method for providing a spectacle opthalmic lens by calculating for selecting a design

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Madrid, Spain

Carlos Dorronsoro