According to wearers…

Essilor is the first optical lens company to use perception tests. Also called sensory tests, they are part of a scientific discipline that calls upon the five senses to assess the product quality. These tests make it possible to validate the correlation of scientific data from Essilor R&D and the perception of eyeglass wearers.

The tests are also used to compare the performances of Crizal products and those of its competitors. Here are a few results:

- Wearers voted Crizal Forte as the cleanest, easiest to clean, most transparent, and least dust-attracting lens on the market*

- Wearers also declare Crizal Forte provides the best resistance to scratches vs the market’s top competitors**

* Source: Sensory tests among 160 eyeglass wearers. Impressions drawn after cleaning lenses (soiled with artificial sebum) with a tissue.

** Source: Sensory test conducted among 100 eyeglass wearers in May 2008: Letter sharpness evaluated through a scratched lens, using the Bayer ISTM method