method for comparing a first ophthalmic lens with a second ophthalmic lens

摘要

The present invention relates to a method, implemented by computer means, for comparing a first ophthalmic lens with a second ophthalmic lens, the method comprising: a step of providing a first optical function, during which a first function is provided optics of a first ophthalmic lens 11, the first optical function comprising at least a first set of values of an optical parameter gj, the values of the first set of values corresponding to the values of said optical parameter of the first ophthalmic lens in a set of directions of the look; a step of providing a second optical function, during which a second optical function of a second ophthalmic lens 12 is provided, the second optical function comprising at least a second set of values of the optical parameter gj, the values of the second set of values corresponding to the values of said optical parameter of the second ophthalmic lens in the set of gaze directions; - a subset determination step, during which at least one first subset and a second subset of look directions are selected within the set of look directions, each subset of look directions comprising at least two look-specific look directions. said subset; a comparison step, during which, for each subset of gaze directions, the value of the optical parameter of the first optical function and the second optical function is compared using a comparison function associated with said optical parameter; an assignment step, during which a subset state is assigned to each subset of look directions, the subset state being based on comparing the value of the comparison function with at least two threshold values t1 and t2 associated with said optical parameter, where the subset state is selected from at least three levels.