Since we are all wearing glasses, we have acquired us the Ultrasonic Cleaner from Grundig. In the beginning we were a bit skeptical. We have now been cleaned several times our glasses in the device and are satisfied all around. The deep end a drop of detergent, these drops with your finger a little stir and the glasses into the device and go. Then simply use a sheet of a paper towel to dry his glasses and gently wipe the glasses. Even the dirt between the rim glasses and glasses are gone. The show traces of grease from the pan dissolve the glasses just to - otherwise you have the fat always lubricated with a lens cloth in circles. This device is now our glasses Shine. We are completely convinced and can recommend this unit highly enough people wearing glasses.