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  • ryedaft@sh.itjust.works
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    5 months ago

    Transition lenses are the ones where you have reading lenses in the bottom and long distance lenses at the top? I guess they are for anyone who suffers both from myopia and hyperopia. Although you could just get contacts and a pair of reading glasses.

    • 9point6@lemmy.world
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      5 months ago

      Those are bifocals or varifocals.

      Transition lenses are the ones with a pigment that activates in bright light to turn them from regular glasses into sunglasses

      • ryedaft@sh.itjust.works
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        5 months ago

        Ah cool! Thank you. In my native language the word for varifocals would directly translate to transition lenses.

        I think my mom had some transition lenses back in the early nineties. The problem was that they were slow to go back to clear when you left the sun. So basically you got the equivalent of your glasses fogging up when you went inside, but in summer also. They might be better now.

        It’s probably more of a young thing because old people already tried them and gave up.