Sensory Analysis

Sensory Test is a scientific discipline through which a product’s attributes are perceived and analyzed through the 5 senses .It has been used in a number of disciplines including the hi- tech food and cosmetics industeries. With new Crizal A2 Essilor is the 1st company in the ophthalmic industry to use Sensory Test to make a connection between scientific data and eyeglass wearers’ perceptions of New Crizal A2 lenses.

•	Sensory analysis is a scientific discipline that applies principles of experimental design and statistical analysis.
•	Sensory analysis assess the sensory qualities of a product in terms of human senses : sight, touch, hearing, taste and smell.

Sensory Analysis Objectives

•	To optimize products at the conception stage
•	To understand the influence of certain properties of a product on the overall perception expressed by consumers
•	To prove clearly and quantifiably the superiority of new generations of products

Observation Methodologies

To measure sensations, 3 observation situations :

The visual perception through spectacles

The appearance of the lenses like an object that we manipulate and watch

The appearance of the lenses when the wearer of spectacles is seen by an observer (= judge)

Questions we Wanted Answered:

•	Do wearers perceive Crizal^® A2™ efficiently repels dust?
•	Is Crizal A2 percieved cleaner?
•	And most important, is lens transparency improved?

Sensory Test Results

Crizal^® A2™ vs Crizal® Alize™

22% less dusty cleaner more transparent

New Crizal^® A2™ was voted

Most Transparent Lens* in the market

Crizal A2 is best in class worldwide

*An independent study was conducted on 80 eyeglass wearers without glasses; 50% men, 50% women. Subject ranked lenses after visual inspection.

*Compared to best selling competitor - Sensory test conducted among 160 eyeglass wearers – End of 2007Appreciation, after cleaning with a tissue, of products soiled with artificial sebum