Essilor International

Essilor International (compagnie Generale D'optique)

New Jersey Institute of Technology

Bérangère Granger

Carlos Rego

Gilles Baillet

Sébastien Fricker

Loïc Quere

Cédric Begon

Olivier Roussel

Tara Lynn Alvarez

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: b) providing a visual stimulus in a sagittal plane of the wearer; and b) moving the visual stimulus within the sagittal plane between a predetermined maximum distance and a predetermined minimum distance.

Method for producing a customized progressive ophthalmic lens

Method for determining the acceptance of progressive addition lenses of a wearer, the method comprising: a fusional vergence parameter providing step during which at least one fusional vergence parameter representing the fusional vergence of the wearer is provided, an acceptance determining step during which the value of the at least one fusional vergence parameter is compared to a predetermined threshold value so as to determine the probability of acceptance of progressive addition lens of the wearer.

Method for determining the acceptance of progressive addition lenses

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Charenton le Pont, France

Bérangère Granger