A system for manufacturing ophthalmic lenses, in particular contact lenses or intraocular lenses, the system comprising: • at least one injection molding machine configured for manufacturing a cup bottom part and cup top part to form a cast mold comprising a cup bottom part and cup top part; • a cooling station; • a plurality of carriers which are transportable along a transport path through a part of the system; • a manipulator assembly (60, 70) which is configured for: ∘ taking a said cup bottom part and a said cup top part out of the at least one injection molding machine and placing them in the cooling station; and for ∘ taking the cup bottom part out of the cooling station and placing it on a carrier of said plurality of carriers that is in a carrier intake position, and configured for placing a said cup top part on the cup bottom part placed on the carrier; • an injection assembly which is arranged for injecting an amount of monomeric material into the cup bottom part; • a curing assembly provided with lamps emitting electromagnetic radiation which promotes the hardening of the monomeric material forming a lens; • a first optical inspection assembly which is disposed upstream of the injection assembly, which first optical inspection assembly is configured for determining at least one first optical cup part parameter of at least the cup part (202, 204) that bears the lens in a part of the system downstream of the curing assembly; • a second optical inspection assembly which is disposed after the curing assembly and which is configured for determining at least one optical combination parameter of the combination of the cured monomeric material formed into a lens and the cup part (202, 204) that bears the lens, the at least one combination parameter being of the same type as the at least one optical cup part parameter; • an electronic control provided with a calculation module for determining at least one optical lens parameter of the lens on the basis of the at least one cup part parameter and at least one combination parameter determined in the first and the second optical inspection assembly (140, 150), the at least one lens parameter being of the same type as the at least one cup part parameter. • at least one injection molding machine configured for manufacturing a cup bottom part and cup top part to form a cast mold comprising a cup bottom part and cup top part; • a cooling station; • a plurality of carriers which are transportable along a transport path through a part of the system; • a manipulator assembly (60, 70) which is configured for: ∘ taking a said cup bottom part and a said cup top part out of the at least one injection molding machine and placing them in the cooling station; and for ∘ taking the cup bottom part out of the cooling station and placing it on a carrier of said plurality of carriers that is in a carrier intake position, and configured for placing a said cup top part on the cup bottom part placed on the carrier; ∘ taking a said cup bottom part and a said cup top part out of the at least one injection molding machine and placing them in the cooling station; and for ∘ taking the cup bottom part out of the cooling station and placing it on a carrier of said plurality of carriers that is in a carrier intake position, and configured for placing a said cup top part on the cup bottom part placed on the carrier; • an injection assembly which is arranged for injecting an amount of monomeric material into the cup bottom part; • a curing assembly provided with lamps emitting electromagnetic radiation which promotes the hardening of the monomeric material forming a lens; • a first optical inspection assembly which is disposed upstream of the injection assembly, which first optical inspection assembly is configured for determining at least one first optical cup part parameter of at least the cup part (202, 204) that bears the lens in a part of the system downstream of the curing assembly; • a second optical inspection assembly which is disposed after the curing assembly and which is configured for determining at least one optical combination parameter of the combination of the cured monomeric material formed into a lens and the cup part (202, 204) that bears the lens, the at least one combination parameter being of the same type as the at least one optical cup part parameter; • an electronic control provided with a calculation module for determining at least one optical lens parameter of the lens on the basis of the at least one cup part parameter and at least one combination parameter determined in the first and the second optical inspection assembly (140, 150), the at least one lens parameter being of the same type as the at least one cup part parameter.