I assume you mean you have 20/15 far vision but something less than 20/20 near vision. Ditto here.

I finally gave in about a year ago to using bifocal safety glasses, which I find to be an economical and safe solution. Here's a link:

http://www.envirosafetyproducts.com/...y-glasses.html

I use the DeWalts, third line down, and keep several pair in both clear (for early AM or rainy days) and gray. Highly recommended.