Method for manufacturing spectacle lenses according to a prescription

A method for manufacturing a spectacle lens according to a prescription, the method comprising:

• providing a semi-finished spectacle lens blank having a first face possessing a final curvature, the first face being coated with a permanent top coating, and a second face opposite the first face;
• performing one of:
• blocking the first face being coated with the permanent top coating by mounting the semi-finished spectacle lens blank on a block piece such that the first face of the semi-finished spectacle lens blank faces the block piece;
• or
• fixing the semi-finished spectacle lens blank on a vacuum chuck or a holding chuck such that the first face of the semi-finished spectacle lens blank faces the vacuum chuck or the holding chuck;
• surfacing the blocked semi-finished spectacle lens blank or the fixed semi-finished spectacle lens blank on the second face to obtain a surfaced spectacle lens blank having a final curvature of the second face;
• deblocking the surfaced spectacle lens blank from the block piece or removing the surfaced spectacle lens blank from the vacuum chuck or the holding chuck prior to a subsequent coating step of the second face;
• and
• providing an outer surface of the first face being coated with the permanent top coating of the finished spectacle lens ready for use for a spectacles wearer and having a surface energy of less than 20 mJ/m2.