6 Secret Monopolies You Didn't Know Run the World | Cracked.com
Eyeglasses Monopoly~ Luxottica-Eyemed
Is the value proposition of 3-D printing eyewear in inventory management and limited made to order customization, or in fully consumer designed eyewear? - Technology and Operations Management
Sunglasses: One Company Owns The Entire Industry - prch
Does Luxottica Own 80% of the Eyeglass Industry? | Snopes.com
The spectacular power of Big Lens | Business | The Guardian