Costco did not take my Medicare Advantage optical. I still paid $360 for 2 pair of progressive with everything and transitional on one pair. The price for a reader only pair of glasses was $225, which I paid $25. One pair matching Costco specs would have been $364 even with $200 off due to insurance coverage.
Do not read so much, look about you and think of what you see there.
Richard Feynman-- letter to Ashok Arora, 4 January 1967, published in Perfectly Reasonable Deviations from the Beaten Track (2005) p. 230