One advantage that the eyeglass market has is massive tax favorability in the U.S. I believe it's still the case that prescription eyeglasses can be bought wit

One advantage that the eyeglass market has is massive tax favorability in the U.S. I believe it's still the case that prescription eyeglasses can be bought with pre-tax dollars under a "use it or lose it" flex savings plan. I assume vision plans, which often include large purchase credits for eyeglasses at least biennially, are also tax deductible benefits. The result is often relatively price-insensitive consumers who "have" to spend $200+ on glasses lest they not be taking full advantage of their benefit.