A mold element (350) is fabricated (305, 310, 315) using a first mold (5) with which microstructures (323) are integrally formed in relief on the mold element (350). A lens (340) is cast (320, 325, 330, 335) using a second mold (7) that includes the mold element (350) such that the microstructures (337) are integrally formed on the lens (340).

A mold apparatus for manufacturing a spectacle lens has one plastic mold element determining the front surface of the spectacle lens and either one glass mold element or one metal mold element determining the back surface of the spectacle lens. Further, a method for manufacturing the mold apparatus and a method for manufacturing a spectacle lens with the mold apparatus are disclosed.

An ophthalmic device satisfying a prescription for at least one power correction for a wearer, a method for manufacturing the ophthalmic device, and a method for applying a semi-finished hybrid ophthalmic lens. The ophthalmic device includes at least one electro-active cell which includes a rear shell and a front shell defining a backside surface and an opposite front surface, the shells being provided with transparent electrodes and delimiting a sealed cavity. The rear shell derives from a semi-finished hybrid ophthalmic lens including 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.

Apparatus (1) for heat treatment of at least one lens body (3), the apparatus (1) comprising-at least one mold assembly (7) for casting a lens, each mold assembly (7) comprising a first mold member (9) and a second mold member (9), the first and second mold members (9) being arranged to hold the lens body (3) between them,at least one induction coil (15) disposed facing the at least one mold assembly (7), anda temperature control unit (17) configured to monitor a temperature in the mold assembly (7), wherein at least one from the first mold member (9) and the second mold member (9) comprises at least one metallic part (11, 25, 29) made of a metallic material, the induction coil (15) being configured to generate a magnetic field when supplied with electrical current and generate heat in each metallic part of each mold assembly (7).