Essilor International (Compagnie Generale D'optique)

Diane De Gaudemaris

Cyril Guilloux

Marie-Anne Berthezene

Céline Carimalo

A method for the determination by optical optimization of a personalized progressive ophthalmic lens intended to be inserted into a frame chosen by a given wearer for whom a power addition has been prescribed in near vision, the method comprising the stages of: The method makes it possible to retain the proportion of the distribution between the far-vision, near-vision and intermediate-vision zones whatever the size and the shape of the frame chosen.

Method for the determination of a progressive ophthalmic lens

A method for determining an ophthalmic lens includes choosing an initial lens with a first face and a second face and defining an initial surface for the second face of the lens with a central zone of diameter Dand a peripheral zone of inner diameter Dgreater than the diameter Dof the central zone, each point of the central zone and the peripheral zone having an altitude defined with respect to an axis (Z) normal to the second face of the lens and having the centre of the central zone as its origin, the altitude of the peripheral zone being defined as the minimum of the points situated on the diameter D; the peripheral zone having a maximum radius of curvature comprised between the maximum radius of curvature of the first face and the maximum radius of curvature of the central zone.

Method for determining an ophthalmic lens

A method for the determination by optical optimization of a personalized progressive ophthalmic lens intended to be inserted into a frame chosen by a given wearer for whom a power addition has been prescribed in near vision, the method comprising the stages of: The method allows the design of the lens to be adapted to the size and the shape of the frame chosen.

A method for the determination of a progressive ophthalmic lens for a given wearer comprises the stages of:

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Diane De Gaudemaris