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Reactive lenses

  • 30-08-2006 5:48pm
    #1
    Closed Accounts Posts: 4,199 ✭✭✭


    Well, I can't seem to find anywhere else to ask this so i'll land it in this forum. Does anyone one here have or know much about reactive lenses for glasses? I think they are pretty cool and i'm thinking about getting them but I would like to know HOW reactive they are. In other words, I don't want my glasses to turn into shades while i'm in the cinema and the screen is bright. Well, you see what i'm saying I hope. It's just a little question. Thanks.


Comments

  • Registered Users, Registered Users 2 Posts: 598 ✭✭✭arseagon


    As far as I know they "train" to light. i.e. when you buy them they take a whiile to start reacting properly to varying light. And they shouldn't darken in a cinema because they're reacting to UV light from the sun not plain white light.


  • Registered Users, Registered Users 2 Posts: 875 ✭✭✭Caco


    Ive had them for 2 years now, they go dark in full sun in about 30 secs, once you go inside, it takes about 2 mins to go clear again
    The ammount they change, depends how bright it is outsde. Sometimes though they can be annoying when they can go dark on duller days (cos there's still UV rays about!)
    I like them though!


  • Registered Users, Registered Users 2 Posts: 7,988 ✭✭✭constitutionus


    also you can specify how dark you want em to go when your buying em off the optician so even at full tint it wont get any darker. i dont have em anymore but they're brilliant for when you go on holidays :)


  • Registered Users, Registered Users 2 Posts: 875 ✭✭✭Caco


    You can also get brown or grey- depending on which type of sunglasses you prefer!


  • Closed Accounts Posts: 2,215 ✭✭✭FranknFurter


    I know my father had them for 3 years and never stopped moaning about them.
    Apparently they take a bit of time when you go from sunlight to indoors to go clear again.
    (Although my father would moan about the grass being green given the chance).

    b


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  • Closed Accounts Posts: 1,680 ✭✭✭Skyuser


    They're crap. On a dull day mine would be half bright and people thought I was blind. But on sunny days they're ok cause they're fully dark and look like sunglasses.

    Also they will never be truly clear like normal lenses. If you compare them to normal lenses, you will always see a tint in them.


  • Closed Accounts Posts: 4,199 ✭✭✭Shryke


    Sorry about the late responce. Thanks for all the replies, they were a real help. I think i'll steer clear of them.


  • Moderators, Category Moderators, Science, Health & Environment Moderators, Society & Culture Moderators Posts: 47,537 CMod ✭✭✭✭Black Swan


    As with any relatively new technology, you need to shop around to find those that work as claimed against those that don't. Perhaps your GP can give you a referral to someone trustworthy in the eye profession who can help you sort through the good and bad?


  • Registered Users, Registered Users 2 Posts: 26,061 ✭✭✭✭Terry


    should have gone to spec savers. lolololololllllllll

    my friend has them. i'll ask where he got them the next time i'm talking to him.


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