Optimization
PreCalc is a special algorithm used when processing RX lenses in order to obtain ideal thicknesses for the selected frame.
PreCalc integrates several submitted informations in order to obtained the desired result. Regardless if lenses are monofocal or progressive, if Optimization is applied, it is possible to obtain the thinnest possible lens without compromising optical quality.
To produce RX lenses of optimum thickness and lens esthetics for the selected frame, it is necessary to submit the shape of the selected ocular, as well as the following data:
To produce a lens with optimal thickness the shape of the ocular must also be submitted.

















