Computer-implemented method for calculating or evaluating a spectacle lens for an eye of a spectacle wearer for the purpose of manufacturing this spectacle lens, comprising the steps of a) providing an assignment V (Δ U s , j ( i )) of at least one aberration Δ U s,j of a spectacle lens system to the visual acuity of the spectacle wearer or an average spectacle wearer when viewing an object through the spectacle lens system, b) determining or prescribing an objective function F s = ∑ G s , j , i V V actual ΔU s , j i − V nominal ΔU s , j i 2 + ... for the lens to be calculated or the lens to be evaluated, in which the assignment from step (a) is to be evaluated, c) calculating or evaluating the spectacle lens to be calculated or evaluated by evaluating the objective function, wherein the objective function is evaluated at least once, the subscript s evaluating its evaluation area of the at least one imaging property or aberration; the subscript i, with i = 1, 2, 3, ..., N, an evaluation point on the evaluation surface; the subscript j , j ≥ 1 the j-th mapping property or aberration; V actual (Δ U s , j ( i )) the visual acuity, which is determined on the basis of an assignment and the actual value of the at least one imaging property of the spectacle lens to be optimized or evaluated at the i-th evaluation point; and V nominal (Δ U s,j ( i )) denotes the corresponding nominal value of the visual acuity. a) providing an assignment V (Δ U s , j ( i )) of at least one aberration Δ U s,j of a spectacle lens system to the visual acuity of the spectacle wearer or an average spectacle wearer when viewing an object through the spectacle lens system, b) determining or prescribing an objective function F s = ∑ G s , j , i V V actual ΔU s , j i − V nominal ΔU s , j i 2 + ... for the lens to be calculated or the lens to be evaluated, in which the assignment from step (a) is to be evaluated, c) calculating or evaluating the spectacle lens to be calculated or evaluated by evaluating the objective function, wherein the objective function is evaluated at least once, the subscript s evaluating its evaluation area of the at least one imaging property or aberration; the subscript i, with i = 1, 2, 3, ..., N, an evaluation point on the evaluation surface; the subscript j , j ≥ 1 the j-th mapping property or aberration; V actual (Δ U s , j ( i )) the visual acuity, which is determined on the basis of an assignment and the actual value of the at least one imaging property of the spectacle lens to be optimized or evaluated at the i-th evaluation point; and V nominal (Δ U s,j ( i )) denotes the corresponding nominal value of the visual acuity. the subscript s evaluating its evaluation area of the at least one imaging property or aberration; the subscript i, with i = 1, 2, 3, ..., N, an evaluation point on the evaluation surface; the subscript j , j ≥ 1 the j-th mapping property or aberration; V actual (Δ U s , j ( i )) the visual acuity, which is determined on the basis of an assignment and the actual value of the at least one imaging property of the spectacle lens to be optimized or evaluated at the i-th evaluation point; and V nominal (Δ U s,j ( i )) denotes the corresponding nominal value of the visual acuity. <EOS>