I get mine at one of the myriad of online retailers, who seem to be outside the clutches of that corporation. There's no restrictions duties or tariffs on importing eyewear in the US and the prescription sheets are technical and specific enough to be fairly language independent.

The internet disrupts consumer by consumer and product by product, not industry by industry.

Going to a brick and mortar certainly appears cost prohibitive once you get used to paying $10 for stylish fitted pairs of prescription glasses.