A - Human Necessities – 61 – B
Patent
A - Human Necessities
61
B
A61B 3/10 (2006.01) G02C 7/06 (2006.01)
Patent
CA 2581650
A method for the determination of a progressive ophthalmic lens for a given wearer comprises the stages of: - determining the axial length (LA) of the wearer's eye, - determining an ergorama associating a sight point with each direction of viewing under wearing conditions. - determining power and resulting astigmatism defect targets for each direction of viewing under wearing conditions, the targets being a function of the axial length of the wearer's eye. - calculating the power required on the lens for each direction of viewing by successive iterations in order to obtain the target power defect and the target resulting astigmatism.
Berthezene Marie-Anne
Carimalo Celine
de Gaudemaris Diane
Guilloux Cyril
Essilor International (compagnie Generale D'optique)
Gowling Lafleur Henderson Llp
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