Headaches, and eye-aches using these.  So hard to focus compared to "real" bi-focals
First off, let me warn you, YOU CAN NOT RETURN THESE!!!!  If you buy them and don't like them, you CAN NOT RETURN THEM!  Warning over, about ordering...just don't.  These stick on lenses give a very distorted view.  I tried them on several pairs of sunglasses and they always returned a distorted view that hurt my eyes.  I tried them for 5 minutes, figuring maybe my eyes would get &#34;used to&#34; them.  Nope, it gave me a splitting headache.  So in short, don't buy them, they don't work, and you can't return them!
Rating: 1 stars