Methods for determining the value of an object's overall sensitivity parameter, methods of using this value, and a system for determining the value

摘要

The present invention is a method of determining a value of an overall sensitivity parameter (Sgsph, Sgcyl, Sgaxis, Sgasr, Sg J0, SgJ45, Soverall) of a subject, wherein the overall sensitivity parameter is at least ophthalmic that is disposed in front of at least one eye of the subject. Is proportional to the sensitivity of the object to variations in at least a ray refractive optical characteristic of the lens, a) at least in proportion to the sensitivity of the object to variations in the first ray refractive optical characteristic of the first ophthalmic lens, 1 determining a single value of the sensitivity parameter (100), b) a single of the at least second sensitivity parameter of the object in proportion to the sensitivity of the object to variations in the second ray refractive optical characteristic of at least a second ophthalmic lens Determining a value (110), wherein each of the first and second sensitivity parameters is each associated with a minimum variation of the first and second ray refractive optical feature that can be detected by an object, c) A method comprising the step 120 of using computing means to determine said value of an overall sensitivity parameter taking into account the combination of said single values of first and second sensitivity parameters. The invention also relates to methods of using such values and systems for performing such methods.