Method of shaping an ophtalmic lens

A shaping method for shaping an ophthalmic lens for mounting in a mixed surround of an eyeglass frame, the method comprising:

• a) a step of acquiring a longitudinal profile characterizing the shape desired for the outline of said ophthalmic lens;
• b) a step of subdividing said longitudinal profile into a final first arc associated with a first segment of the mixed surround and a second arc distinct from said final first arc, in which step the positions of two initial singular points of the longitudinal profile are acquired that characterize the positions of the two ends of the first segment of said mixed surround;
• c) a first finishing step of finishing the ophthalmic lens, during which a first portion of its outline is brought to the shape of the final first arc;
• and
• d) a second finishing step of finishing the ophthalmic lens during which a second portion of its outline is brought to the shape of the second arc;
• said first and second finishing steps being performed in such a manner that the edge face of the ophthalmic lens presents transverse profiles of shapes that are different over the first and second portions of the outline of the ophthalmic lens;
• wherein, in step b), the position of at least one of the two initial singular points is corrected in such a manner as to obtain two final singular points that define said final first arc, which arc is truncated so that its length is shorter than that of an initial first arc of the longitudinal profile extending between the two initial singular points of the longitudinal profile.