RIMLESS GLASSES: this was a real challenge. One arm had broken off at the root (1) and there was no chance of fixing the break. First job (2) tape over the lens to protect it and dig out the old fixings (two barbed metal prongs pushed into plastic sleeves through holes in the lens). Next (3) drill sideways into the lens and (4) glue the wire end of the broken side-arm into the new hole.