Prices for prescription eyeglasses vary enormously. You can easily spend $500 for a pair of single-vision glasses (not bifocals, not a weird prescription) at a boutique optician, less than $100 at discount chains like For Eyes, America's Best and, more recently, Warby Parker, and less than $50 -- sometimes much less -- at online outlets. Walmart, Target and Costco also have their own discount optical operations. I'd like to believe "you get what you pay for," but I would bet that most lenses come from a handful of manufacturers, and most frames aren't made from precious metals. Assuming they are made and fitted correctly, how different are cheap glasses from the top end?
via International Skeptics Forum http://bit.ly/2TEc8Hi
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