I purchased a pair of rimless glasses, had them for 1 week, dropped them and the lens broke in half. I am 50 years old and have been wearing rimless glasses for 25+ years and never had this happen. The lens's are supposed to be polycarbonate plastic to withstand the added stress of the rimless design but as with many things made in china coupled with deceptive advertising these glasses are of inferior quality and completely useless. read full review »