A few months ago, I bought my new glasses, prescription, at the Ray Ban store. They checked my eyes for free, and the glasses weren’t in some kind of “buy one get two free” deal. When it came to settling accounts, they didn’t ask if I wanted the scratch protection on the glasses.
I’m pretty sure that means the scratch guard is bullshit. And it makes me only want to buy from Ray Ban directly for the rest of my life.