Computer-implemented method for generating a target design which considers an astigmatic power according to the prescription and is suitable when producing a spectacle lens with the astigmatic power according to the prescription for the optimization thereof and specifies a distribution of image aberrations over the spectacle lens or of surface properties of the spectacle lens, said method comprising: - provision of an initial target design in which the prescription for the distribution of image aberrations over the spectacle lens or of surface properties of the spectacle lens is based on a certain spherical initial value and which does not consider the astigmatic power of the spectacle lens according to the prescription or indirectly considers it by virtue of the spherical equivalent being used as the spherical initial value; characterized in that the target design is generated by correcting the initial target design on the basis of a correction target design which directly considers the astigmatic power of the spectacle lens according to the prescription and in which the prescription for the distribution of image aberrations over the spectacle lens or of surface properties of the spectacle lens is based on the cylinder value and the sphere value from the prescription for the user, wherein - the correction target design is formed on the basis of a first target design, the prescription of which for the distribution of image aberrations over the spectacle lens or of surface properties of the spectacle lens is based on the cylinder value from the prescription for the user, and a second target design, the prescription of which for the distribution of image aberrations over the spectacle lens or of surface properties of the spectacle lens is based on the certain spherical initial value, by subtracting the second target design from the first target design, and - the initial target design is corrected on the basis of the correction target design by adding the initial target design and the correction target design. - provision of an initial target design in which the prescription for the distribution of image aberrations over the spectacle lens or of surface properties of the spectacle lens is based on a certain spherical initial value and which does not consider the astigmatic power of the spectacle lens according to the prescription or indirectly considers it by virtue of the spherical equivalent being used as the spherical initial value; - the correction target design is formed on the basis of a first target design, the prescription of which for the distribution of image aberrations over the spectacle lens or of surface properties of the spectacle lens is based on the cylinder value from the prescription for the user, and a second target design, the prescription of which for the distribution of image aberrations over the spectacle lens or of surface properties of the spectacle lens is based on the certain spherical initial value, by subtracting the second target design from the first target design, and - the initial target design is corrected on the basis of the correction target design by adding the initial target design and the correction target design.