The invention relates to a method for trimming an ophthalmic eyeglass lens (10; 20) according to a desired outline (E, F), the lens (10; 20) comprising a substrate (11; 21) and a coating film (12; 22). The method comprises a step of cutting out the lens (10; 20) using a first tool (30; 40) over at least the thickness of the coating film (12; 22), said cutout internally saving a useful center portion (12A; 22A) of the coating film (12; 22) having a closed outline (C; D) which is small relative to that of the original lens and which is calculated on the basis of said desired outline (E; F), followed by a step of trimming the edge of the substrate (11; 21) according to said desired outline (E; F) using a second tool (31; 41), without machining said center portion (12A; 22A), and a subsequent step of finishing the edge of the substrate (11; 21) without machining said center portion (12A; 22A).