I purchased some really awesome vintage glasses with octagonal black plastic frames made in France, probably from the late 1960s or early 1970s. I was so excited to have them made into sunglasses. I took them to my local optical shop and was told, "I hope you didn't spend much on these because you wasted your money. No one will touch frames this old, because the plastic is so brittle it will just shatter." I was so disappointed. I tossed them in a drawer and forgot about them for a few months. Then I saw an ad for Lensabl online. I contacted them and asked if they could work with vintage frames, and the answer was "No problem!" I was nervous to send the frames in but figured I didn't have anything to lose. I just received the glasses back in the mail today (two weeks from when I mailed them in), and they are incredible! The frames were cleaned and straightened, and the new lenses are perfect. I love them so much. Thanks, Lensabl!