Electro-active ophthalmic device satisfying a prescription for 5 power correction(s), manufacturing method and use of a semi-finished hybrid lens

A method for manufacturing an ophthalmic device intended for a wearer and satisfying a prescription for at least one power correction and astigmatism for the wearer, the ophthalmic device comprising:

• at least one electro-active cell which comprises a rear shell and a front shell respectively defining for the ophthalmic device a backside surface proximal to at least one eye of the wearer and an opposite front surface, the rear shell and the front shell being provided with at least one pair of transparent electrodes and delimiting a sealed cavity,
• wherein the rear shell derives from a semi-finished hybrid ophthalmic lens comprising:
• a front mineral part having a first mineral face proximal to the front shell and a second mineral face opposite to the first mineral face, and
• a rear plastic part attached to the front mineral part, the rear plastic part having a front plastic face bonded to said second mineral face and an unsurfaced rear plastic face which defines said backside surface and is configured to impart said prescription to the ophthalmic device, after surfacing said semi-finished hybrid ophthalmic lens, the method comprising:
• a) manufacturing said semi-finished hybrid ophthalmic lens by attaching said rear plastic part having said unsurfaced rear plastic face to said front mineral part, wherein attaching said rear plastic part to said front mineral part is implemented by injection molding directly over said front mineral part, a thermoplastic transparent substrate of said rear plastic part;
• b) surfacing said semi-finished hybrid ophthalmic lens, to impart said prescription to said unsurfaced rear plastic face for obtaining said backside surface;
• and
• c) assembling said at least one electro-active cell by joining together the front shell and the rear shell comprising the semi-finished hybrid ophthalmic lens once surfaced.