1. A method for calculating design parameters D j , j=1,. .. , M of a progressive spectacle lens design on the basis of a predetermined design polygon and manufacturing a progressive spectacle lens, the method comprising: specifying a point P Design within the predetermined design polygon, wherein the point P Design defines the spectacle lens design; determining a value D j (P Design ) of each design parameter D j , j=1,. .. , M, of the spectacle lens design at the point P Design by an interpolation of one or more predetermined values D j (P Corner ), j=1,. .. , M at respective corner points P Corner , determining a spatial distribution of target values of at least one imaging property or aberration of the progressive spectacle lens, wherein each point P within the predetermined design polygon defines one design that is characterized by design values D j (P), D j (P Corner ), j=1,. .. , M of the design parameters characterize the design at the respective corner points P Corner of the predetermined design polygon, M designates the number of design parameters, and the progressive spectacle lens design comprises target values for the spatial distribution of the at least one imaging property or aberration of the progressive spectacle lens, and manufacturing the progressive spectacle lens in accordance with the spectacle lens design.