A process for coating at least one geometrically defined surface of an optical article's substrate, said surface forming a Fresnel lens, comprising: (a) providing a removable carrier made of a plastic material and having an internal surface and an external surface, said internal surface optionally bearing a stack of one or more coatings having an exposed surface; (b) providing an optical article comprising a substrate having at least one geometrically defined surface forming a Fresnel lens; (c) depositing a curable coating composition onto either the at least one surface forming a Fresnel lens, the internal surface of the carrier, or the exposed surface of the coating stack borne by the carrier; (d) moving the carrier and the optical article relatively to each other to bring the deposited curable coating composition into contact with either the at least one surface forming a Fresnel lens, the internal surface of the carrier or the exposed surface of the coating stack borne by the carrier; (e) applying a pressure onto the external surface of the carrier to spread out the curable coating composition so as to cover said at least one surface forming a Fresnel lens; (f) curing the layer of curable coating composition; (g) withdrawing the removable carrier to recover the substrate of the optical article having at least one Fresnel lens forming surface coated with the cured coating composition and optionally with the transferred coating stack, wherein the following requirements are simultaneously satisfied: - the difference between the base curvature of the substrate and the base curvature of the carrier ranges from -0.3 to 0.3; - the pressure applied in step (e) is higher than or equal to 0.138 Bar; and - the ratio Rtb defined as: thickness of the carrier in millimeters / pressure applied in step (e) in Bar is higher than or equal to 1.85. (a) providing a removable carrier made of a plastic material and having an internal surface and an external surface, said internal surface optionally bearing a stack of one or more coatings having an exposed surface; (b) providing an optical article comprising a substrate having at least one geometrically defined surface forming a Fresnel lens; (c) depositing a curable coating composition onto either the at least one surface forming a Fresnel lens, the internal surface of the carrier, or the exposed surface of the coating stack borne by the carrier; (d) moving the carrier and the optical article relatively to each other to bring the deposited curable coating composition into contact with either the at least one surface forming a Fresnel lens, the internal surface of the carrier or the exposed surface of the coating stack borne by the carrier; (e) applying a pressure onto the external surface of the carrier to spread out the curable coating composition so as to cover said at least one surface forming a Fresnel lens; (f) curing the layer of curable coating composition; (g) withdrawing the removable carrier to recover the substrate of the optical article having at least one Fresnel lens forming surface coated with the cured coating composition and optionally with the transferred coating stack, - the difference between the base curvature of the substrate and the base curvature of the carrier ranges from -0.3 to 0.3; - the pressure applied in step (e) is higher than or equal to 0.138 Bar; and - the ratio Rtb defined as: thickness of the carrier in millimeters / pressure applied in step (e) in Bar is higher than or equal to 1.85.