I hope these lenses do what they are supposed to do. I have a few Photochroms but I'm not sure how well they work. They are also very thin and light compared to OEM Rudy Project lenses. The lens size was slightly larger than the OEM lenses but after a bit of effort the lenses fit snugly in the frame and seem fine. The optical clarity is not as good as the original OEM lenses, but it is sufficient for my needs. I suspected UV blocking ability as well, but they blocked enough UV that my Transition lenses didn't darken, so I assume they do what they advertise. I am happy with the <$6 product and will purchase another pair in the future if needed.
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