Patent ID: 8870375

Claim:
A method for calculating or optimizing an ophthalmic lens design comprising the steps of: providing a given ophthalmic lens design; and assessing the given design by computer means comprising a media suitable for storing electronic instructions realizing the following steps: a) selecting a prescription and optionally design particularity parameters set comprising a plurality of prescription parameters in the list consisting of spherical power (SPH), cylindrical power (CYL), cylinder axis (AXE), addition power (ADD) with the proviso that the ophthalmic lens is a progressive addition lens (PAL) and selecting a prescription and optionally design particularity range for each selected prescription and optionally design particularity parameter so as to define the prescription and optionally design particularity domain; b) meshing the prescription and optionally design particularity domain so as to obtain a representative sample of coordinates within the prescription and optionally design particularity domain and thus providing a plurality of meshing coordinates where each coordinate consists of a series of values of the selected prescription and optionally design particularity parameters within their prescription and optionally design particularity range; c) providing an assessment criterion for the selected optical feature of the ophthalmic lens design; d) calculating the assessment criterion value for each meshing coordinate of step b); and e) providing a sensory representation of the assessment criterion values over the prescription and optionally design particularity domain.