The new World Lens and Frame Demand Study 2018 of SWV is ready.
Data researched is for the year 2017.
A total of 67 countries representing 94.9% of the world GDP were researched in detail.
The 67 countries researched made up 79.3% of the total population of the world.
If you want to know more about the contents of this study, please contact SWV.