This video shows how to remove and replace lenses.
If your an optician and want to make a new set of lenses first remove the lenses from the frame as shown in the video. If you have an optical tracer you should be able to trace the frames. If you have a tracer that physically traces the frame it will not work with our rubber insert. What you should do instead is trace the demo lens just like you would with a frameless pair of glasses. Any further questions please write to firstname.lastname@example.org.