Wave, with the designer's input, offers starting design options for single vision, toric, multifocal, ortho keratology and hybrid lens designs. Regardless of the design, Wave produces a lens that is thinner, more comfortable and better centered.
One of three lens types is selected after considering Rx and corneal shape: RSym, GSym or FForm (respectively Rotationally Symmetrical, Geometrically Symmetrical, Free Form asymmetric). Think of the types as spherical, toric and asymmetric toric.
The software always defaults to the simplest design: single vision Rotationally Symmetric. Up to a certain amount of astigmatism, this initial design may be sufficient. If the designer feels there is too much clearance in the simulated fluorescein, he may opt to design in the GSym mode for a full toric design. Taking this process a step further, for more extreme corneas, the designer make take full advantage of Wave's controls and enter the Free Form mode to design asymmetrically.
Learn more about lens types under "Lens Designs"
Optimizing a Wave fit is accomplished by adjusting the height of eight meridians. Depending on the selected geometry, the designer has differing control of the meridians.