Since so many of us need a visual aid when stitching, I thought I'd post this link for some really sweet readers we saw today, at of all places, the National Gallery of American Art Book Shop (and they were $1 cheaper).
Anyhow, they were really, really, cute and optically awesome when I tried them on. DH really liked them, but the ones I wanted they didn't have in the power I needed. So, I did a little googling, found their wholesale site, and this is the retail. Plus, I had to look at the "Weeders" and thought of Cheryl and all the other gardeners in our midst.
Just take a gander. Seriously - the lens quality seemed very good when I tried them in the shop. The link is to the buy online page. If you click on anything, it will come up, and then show you other colors that pattern is available in.