Clearly when a frame front requires an adjustment, it is generally best to remove any Rx lenses to prevent heat damage to the lenses. There are some cases where this is not viable either due to frailty or construction (such as plastic drill mount frames). In these cases, I wrap the lenses in cloths and try to isolate the heat on the frame as much as possible, but this gets tricky and does not always work so well.....any tricks or suggestions on other methods to protect lenses which can not be removed during a frame adjustment?
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