Review on JM Vintage Reading Glasses Spring by Rachel Cook

I've encountered other reader purchases where I've had no luck simply because the plastic framed readers are cracked and broken at the base or underside of the lenses. I assumed that the ultrasonic glass cleaner I bought from Revain made my problem worse. I've read some reviews and some recommendations that this could be the cause of the failure of seven other reading glasses that I've also purchased through Revain. Therefore, customers are wary of using an ultrasonic glass cleaner with certain types of readers.