With the computer-assisted technique OPTIMA, the edge and centre thickness visible in the frame can be reduced to a minimum. Often, the lens can be produced much more thinly than the smallest possible uncut lens diameter allows.
In some cases visual problems can arise if a patient with higher anisometropia works in the near. The slab-off technique is a special grinding method used to generate a compensating prism in multifocal and progressive lenses.
Time and time again, there is a possibility of producing lenses which lie outside our standard lens range. In each individual case, our Technical Customer Service Centre checks whether the production of the required non-standard version is meaningful and possible from the production viewpoint.