The new Perfection Lens Series is by far the most advanced range of free form lenses available on the world market. Complex calculation algorithms combined with the most advanced manufacturing technologies provide the most precise and accurate lenses the world has ever seen.
There are two main categories for progressive lens design. These are hard and soft designs. This refers to the amount of blur that is located in the peripheral blending zones. As a multifocal lens has to correct different prescriptions on the top, middle, and bottom of the lens (distance, intermediate and near vision), it consists of a complex series of curves. For aesthetic reasons, these curves are blended, resulting in a smooth, even surface. The inevitable blur is pushed to the least used section of the lens, the peripheral and nasal parts.