They’re just regular (prescription) glasses. The sky looks normal through them. What’s the deal?

  • @DarkShaggy
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    613 months ago

    Most likely uv protective coating.

    • @Xaphanos
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      113 months ago

      Any coating might produce this through reflective destructive interference.

      • @DarkShaggy
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        23 months ago

        True but where I live in CA this would likely be the coating selected by the majority of people.