Computer-implemented method for calculating or optimising a spectacle lens comprising the steps: • specifying at least one surface for the spectacle lens to be calculated or optimised; • determining the course of a principal ray through at least one viewing point (i) of the at least one surface; • determining a first primary set (s io) and a second primary set (e iok) of coefficients of the local aberration of a local wavefront extending from the at least one viewing point (i) in a surrounding area of the principal ray, wherein the first primary set of coefficients (s io) defines the spherical and astigmatic aberration of the extending local wavefront and the second primary set of coefficients (e iok) defines a further aberration of higher order (k > 2) of the extending local wavefront; • specifying at least one function e pk = f (e ok), which assigns to a second primary set of coefficients (e ok) a second secondary set of coefficients (e pk), which defines the aberration of higher order of a propagated wavefront; • determining an aberration of higher order of a local wavefront propagated along the principal ray and extending from the at least one viewing point (i) as a function of at least the second primary set of coefficients (e iok) on the basis of the specified function e pk = f (e ok); and • calculating or optimising the at least one surface of the spectacle lens taking into consideration the determined aberration of higher order of the propagated local wavefront, wherein the function e pk = f (e ok) is specified as a linear function e px =B k (e ok + r k), in which the proportionality term B k is dependent on the first primary set of coefficients (s io), but not on the second primary set of coefficients (e ok). • specifying at least one surface for the spectacle lens to be calculated or optimised; • determining the course of a principal ray through at least one viewing point (i) of the at least one surface; • determining a first primary set (s io) and a second primary set (e iok) of coefficients of the local aberration of a local wavefront extending from the at least one viewing point (i) in a surrounding area of the principal ray, wherein the first primary set of coefficients (s io) defines the spherical and astigmatic aberration of the extending local wavefront and the second primary set of coefficients (e iok) defines a further aberration of higher order (k > 2) of the extending local wavefront; • specifying at least one function e pk = f (e ok), which assigns to a second primary set of coefficients (e ok) a second secondary set of coefficients (e pk), which defines the aberration of higher order of a propagated wavefront; • determining an aberration of higher order of a local wavefront propagated along the principal ray and extending from the at least one viewing point (i) as a function of at least the second primary set of coefficients (e iok) on the basis of the specified function e pk = f (e ok); and • calculating or optimising the at least one surface of the spectacle lens taking into consideration the determined aberration of higher order of the propagated local wavefront, wherein the function e pk = f (e ok) is specified as a linear function e px =B k (e ok + r k), in which the proportionality term B k is dependent on the first primary set of coefficients (s io), but not on the second primary set of coefficients (e ok).