I don't wear glasses myself but my mother does and she was with me. He cleaned her glasses with the stuff and I ask her afterward and she said, "yep, the scratches are gone." I don't know if they were permanently gone or if it just hides them but that is the way he promoted it. Maybe the polish makes the scratches less noticeable.

Anyway, that's a first: a salesman exaggerating. Go figure. :o