1. A method for measuring at least one morpho-geometric parameter of a spectacle wearing individual, said method employing a stand-alone information-processing device having a screen, a target, a compact image-acquisition system provided with a means for determining its inclination and connected to said screen, and a processor allowing the image-acquisition system to be controlled and the images obtained to be processed, said method comprising the steps of: adjusting the inclination of the image-acquisition system so that it remains in a permissible angular range, said image-acquisition system being equipped with a device for compensating for its inclination, so as to obtain an image of the eyes of the individual, which image is always centered on the screen whatever the inclination of said system in the permissible angular range; adjusting the height of the image-acquisition system that the individual can view the target along a substantially horizontal vision axis; the individual observing the target in a comfortable position that requires no particular effort to adopt, the spectacles occupying a natural position on the face of the individual; acquiring at least one image of the eyes and of the frame in said observation position by means of the image-acquisition system; processing said at least one image using the processor in order to determine each morpho-geometric parameter of the individual from the position of their pupils and the inclination of their spectacles; and returning the results of the measurements.