• When fake Oakleys first became a thing, I remember people on STW saying that it was actually very hard to make polycarbonate lenses that didn't filter out UV - any truth in that?

  • yes - its inherent in the material, providing they are using polycarbonate (which they are likely to do as its cheap)

    The main differences are likely to be in the optical quality - ie distortion/flare etc.

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