The article proposes a method for the synthesis of aplanatic gradient lenses, which are limited by spherical surfaces. Gradient lenses with the axial linear refractive index were derived from homogeneous lenses with the corrected third-order coma at the location of the entrance pupil in the plane of the lens. The effectiveness of this method of synthesis is shown on the basis of two types of gradient aplanatic lenses. One type had a gradient layer adjacent to the first surface, the other type had a gradient layer on the entire axial thickness of the lens.