"The industry" is mainly Luxottica[1], a company that controls the majority of the world glasses market - prescription and non, production and retail, and even

"The industry" is mainly Luxottica[1], a company that controls the majority of the world glasses market - prescription and non, production and retail, and even (through a vision insurer) purchasing. There's a ton of "look at this horrible monopoly and how many damage they do!" type articles about. 1: https://en.wikipedia.org/wiki/Luxottica https://en.wikipedia.org/wiki/Luxottica