Patent ID: 8506084

Claim:
A method for at least one of checking and determining user data of a spectacle lens user, comprising using a microprocessor to perform the following: providing subjective data of a spectacle lens user, wherein the subjective data including at least subjective refraction data; providing objective refraction data of the spectacle lens user; comparing at least a subset of the subjective refraction data with at least a subset of the objective refraction data, and determining a comparative result; and changing one or more values of the subjective refraction data so that at least the subset of the subjective refraction data matches the objective refraction data on the basis of the comparative result provided that the comparative result fulfills at least one predetermined comparative condition, and otherwise, at least one of maintaining at least the subset of the subjective refraction data and providing a message containing the comparative result, wherein at least two of the subjective refraction data, the matched subjective refraction data and the objective refraction data are combined to form combined refraction data, and wherein the combined refraction data designated as P K are calculated by addition of the objective refraction data designated as P obj with the subjective refraction data designated as P sub as follows: P K =G obj P obj +G sub P sub wherein: G = ( g 1 0 0 0 g 2 0 0 0 g 3 ) , ⁢ 0 < g i < 1 , ⁢ G obj + G sub = 1 and wherein: P = ( M J 0 J 45 ) with P representing various power vector possibilities, and M = sph + zyl 2 J 0 = - zyl 2 ⁢ cos ⁢ ⁢ 2 ⁢ A , ⁢ J 45 = - zyl 2 ⁢ sin ⁢ ⁢ 2 ⁢ A with M, J 0 and J 45 representing an eye's objective refraction values.