I have no idea of what materials meet those standards. My ophthalmologist always gives me a prescription for polycarbonate lenses for safety, though.
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Thread: sunglasses?
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02-10-2010, 12:54 PM #1
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02-10-2010, 01:23 PM #2
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Looks like for impact-resistant prescription lenses, it's either polycarbonate or Trivex. I'm guessing Trivex is probably a lot more expensive. It's supposed to be a lot better optically than polycarbonate.
Speed comes from what you put behind you. - Judi Ketteler
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