One of the most frequent topics coming into the workshop at FRAMEFIXERS.COM is the removal and installation of lenses in vintage plastic frames.
Whether the frame is going to get plain clear lenses so that they can act as stylish accessory to an outfit, or a lovable sunglass for sunny days, or possibly a straight magnification reader set of lenses or even a true prescription lens in single or progressive vision, they all require that the old lenses be safely removed, and new lenses installed without damaging the vintage plastic frame.
The most challenging problem seems to be solid glass lenses which are in a vintage frame and must be removed.
A safe and reliable technique is to cover the lens with a heavy industrial tape which is then cut to copy the perimeter exactly. Then, using a steel dopping block and a dopping ball, the lens is shattered with a single strike into the center with the curvature of the lens facing downward so as to prevent any point of the frame making contact.
To insert the new lens, a gentle trial fit accompanied by some careful excavation of the channel and the use of strips of the tear proof plasticized sheets from a tear proof mailing envelope will glide the lens into place without stressing any one point on the frame.
Check out our instructive video on YouTube