A method for acquiring and processing images of the ocular fundus by means of a portable electronic device (1), wherein the portable electronic device comprises a photographic camera or video camera (2) capable of acquiring a plurality of images at a predetermined frequency, and a processor capable of processing these images, the method comprising : - acquiring a plurality of images of the ocular fundus by means of the photographic camera or video camera of the electronic device, - mapping certain images selected from the plurality of acquired images, wherein the selected images are positioned relative to one another so as to form a map of the ocular fundus formed by the assembly of the selected images, and the positioning of each image relative to the other, previously selected, images is carried out within a maximum time interval of 125 milliseconds, and joining the selected images or images corresponding to them according to the mutual positioning defined by the mapping, so as to generate a single image of the ocular fundus.