Hi SIRTOM

I simply entered "glasses technical drawings" in the Google image search.
At Pinterest you will find a lot of plans.
The eyeglass manufacturers don't like to give such measures away for fear of being copied.
I took the approximate measurements of my existing glasses and created a redesign.
For reference I took a figure from makehuman http://www.makehumancommunity.org, exported it as obj and imported it into Moi.