Why are glasses so expensive? The eyewear industry prefers to keep that blurry

Eyewear is a near-monopolistic, $100-billion industry dominated by a single company. That's why 1,000% markups for frames and lenses are commonplace.
Read more: https://www.latimes.com/business/lazarus/la-fi-lazarus-why-are-eyeglasses-so-expensive-20190122-story.html?source=Snapzu