hazuki magnifying glasses have already sold 2 million pairs, but you won't find them in stores. oday, through this exclusive limited-time television offer, you can get your own hazukis to try for 90 days. here to introduce you to a breakthrough in eyewear technology is our host, tom jourden. >> i think most people would say that, of their five senses, eyesight is number one. i know it is for me. and now that i'm a little older, my eyes definitely don't work as well as they used to when it comes to reading small print or tackling jobs around the house that require detailed close-up work, like using one of those tiny screwdrivers to fix a screw on a pair of broken readers. you know that's a nightmare. my guest today knows all about those problems and how hazuki magnifying glasses solves them. meet optometrist dr. marianne banales. welcome, marianne. >> thanks for having me. >> oh, i am so thrilled you're here, because my vision has definitely gotten worse over the years, unfortunately. so, my question for you is why does our close-up vision just seem to go downhill as we get older?