Method for the determination of a progressive ophthalmic lens

Details Method for the determination of a progressive ophthalmic lens Method for the determination of a progressive ophthalmic lens

2007-02-27

2010-06-08

Mack, Ricky L (Department: 2873)

Optics: eye examining, vision testing and correcting

Spectacles and eyeglasses

Ophthalmic lenses or blanks

C351S159000

Reexamination Certificate

active

07731359

ABSTRACT:
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:determining at least one parameter representing the frame chosen by the wearer;measuring parameters representing the wearer's head-eye behavior;weighting the parameters representing the wearer's head-eye behavior with the parameter representing the frame chosen by the wearer;determining power and resulting astigmatism defect targets for each direction of viewing under wearing conditions, the targets being associated with an individual merit function taking into account the weighted head-eye coordination parameters.The method allows the design of the lens to be adapted to the size and the shape of the frame chosen.

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