How do you change the lenses?
I bought these glasses however no instructions on how to change the lenses?!
Pull the lens out from the middle of the frames, the nose bridge. You may need to prize the grips apart slightly to help the lens drop out. They will make a slight creaking sound but the frames are quite tough.
When putting a lens in start with the arm side and slide the nose bridge side up the small runner. They don't fit back in exactly first time so will need to be adjusted and moved till they fit.
Until the lenses wear down it will be tough to get them in.
Once you have done that, clean off all the fingerprint marks you just smeared all over the lenses!