Review on 🔍 Enhance Your Vision with Hydrotac OPTX 20/20 Stick On Magnification Bifocal Lenses - Pack of 2, +2.00 Diopter by Bob Collins

Great idea. Wet your sunglasses, put on small lenses, bifocals! Taadaa. I used them during a long trip. Followed the instructions to put on glasses (easy) and was able to read while my husband drove and enjoy the scenery from time to time. Big. But then, about 4 hours later, the lenses fell off my sunglasses. I'm not sure if it's due to the application or the lens material of the sunglasses (maybe it should be glass?) but for the cost per hour of use I can't recommend them. I liked it while working. It's thick and if you have small sunglasses you can trim it down to the right size for bifocals. I wish they had sold the glasses in a smaller size which might improve their ability to stay put when the sunglass lens has a curve.