Method for producing a spectacle lens for an imaging optical unit for generating a virtual image of an initial image represented on an image generator, which has an inner surface, facing the eye, and an outer surface, facing away from the eye, and in which an input coupling section for coupling an imaging beam path in between the inner surface and the outer surface and an output coupling structure for coupling the imaging beam path out of the spectacle lens in the direction of the eye are provided, wherein the input coupling section is arranged in the spectacle lens such that an imaging beam path, coupled into the spectacle lens through the input coupling section, is guided to the output coupling structure by way of reflections between the inner surface and the outer surface of the spectacle lens, wherein - situated between the input coupling section and the output coupling structure in the spectacle lens is a periphery adaptation that is implemented by a corresponding shape of the inner surface, - in that region of the spectacle lens through which the eye looks when it looks straight ahead, the inner surface has substantially a curvature that is approximated to the curvature of a typical inner surface of a spectacle lens with or without correction of a refractive error to such an extent that it does not induce any optical aberrations that are perceivable when looking straight ahead, and, in the region of the periphery adaptation, it has a shape that deviates more strongly from the curvature of the typical inner surface and makes possible the guidance of an imaging beam path, which has been coupled into the spectacle lens through the input coupling section, by way of reflections between the inner surface and the outer surface of the spectacle lens to the output coupling structure, and characterized in that - the entire inner surface of the spectacle lens is a single free-form surface, wherein the method comprises the steps of: - providing a spectacle lens semifinished product from a glass material, wherein the spectacle lens semifinished product already has the output coupling structure, the outer surface of the spectacle lens to be produced and an unfinished inner surface of the spectacle lens to be produced; - producing the spectacle lens from the spectacle lens semifinished product, wherein a CNC process is used to produce the inner surface of the spectacle lens from the unfinished inner surface of the spectacle lens semifinished product on the basis of stored CNC data, which are defined for the entire inner surface in the same coordinate system, in a single method step. - situated between the input coupling section and the output coupling structure in the spectacle lens is a periphery adaptation that is implemented by a corresponding shape of the inner surface, - in that region of the spectacle lens through which the eye looks when it looks straight ahead, the inner surface has substantially a curvature that is approximated to the curvature of a typical inner surface of a spectacle lens with or without correction of a refractive error to such an extent that it does not induce any optical aberrations that are perceivable when looking straight ahead, and, in the region of the periphery adaptation, it has a shape that deviates more strongly from the curvature of the typical inner surface and makes possible the guidance of an imaging beam path, which has been coupled into the spectacle lens through the input coupling section, by way of reflections between the inner surface and the outer surface of the spectacle lens to the output coupling structure, and characterized in that - the entire inner surface of the spectacle lens is a single free-form surface, wherein the method comprises the steps of: - providing a spectacle lens semifinished product from a glass material, wherein the spectacle lens semifinished product already has the output coupling structure, the outer surface of the spectacle lens to be produced and an unfinished inner surface of the spectacle lens to be produced; - producing the spectacle lens from the spectacle lens semifinished product, wherein a CNC process is used to produce the inner surface of the spectacle lens from the unfinished inner surface of the spectacle lens semifinished product on the basis of stored CNC data, which are defined for the entire inner surface in the same coordinate system, in a single method step. - providing a spectacle lens semifinished product from a glass material, wherein the spectacle lens semifinished product already has the output coupling structure, the outer surface of the spectacle lens to be produced and an unfinished inner surface of the spectacle lens to be produced; - producing the spectacle lens from the spectacle lens semifinished product, wherein a CNC process is used to produce the inner surface of the spectacle lens from the unfinished inner surface of the spectacle lens semifinished product on the basis of stored CNC data, which are defined for the entire inner surface in the same coordinate system, in a single method step.