The invention concerns a method for helping determine the vision parameters of a subject (100), comprising the following steps: —taking (120) two images (11, 12) from two different angles of the face of the subject by means of a camera (10), the subject (S) being in a natural distant vision position, —determining (130) the inclination of the camera (10) relative to the ground at the time when the images are taken, —deducing therefrom (140) the inclination and the direction of the face of the subject (S), characterized in that the camera is arranged outside a foveal area of the subject when the images (11, 12) are taken (120).
