Hi,

I just received possession of a new set of prescription sunglasses purchased at Costco. They have progressive lenses with polarization, antireflective coating, and light- adaptive tinting. Cost of the lenses was $160, total cost including frames was $225. In addition, they won't give you any static if you want to return them. When I priced these at a some optical shops, the lenses alone were quoted at $700 - $800. Can these Costco lenses be of the same quality at less that 1/4 the cost? If so, why is there such a huge markup at optical shops?

Please help.

I didn't find the right solution from the Internet.

References:-
https://www.bogleheads.org/forum/viewtopic.php?t=219259
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Thanks!

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