Abstract: In a method for measuring optical lens surfaces, a measuring beam is generated by an extended light source, collimated via an optical arrangement, and detected using an optical detector after reflection on a lens surface to be measured. An aperture delimiting the measuring beam is inserted between the light source and the optical detector and acts as a vignetting field stop. The field stop is imaged onto the optical detector out of focus as a first light spot by the measuring beam after reflection on a first lens surface. The optical detector simultaneously also detects at least a second light spot obtained by reflection of the measuring beam on a second lens surface. An angle of each lens surface with respect to the optical axis of the measuring beam can be simultaneously determined for both lens surfaces from the intensity distribution of the two light spots.