Dave, I also have an astigmatism and no-line bifocals. I use a set of these magnifiers when tying:
http://www.rockler.com/product.cfm?p...lter=magnifier

I also find that I am lost without a set of these clipped to my hat while I'm fishing.
http://www.cabelas.com/cabelas/en/te...set=ISO-8859-1

There's nothing more frustrating that being waist deep in the water just after sunset while mayflies are hatching all around you and you can't see the eye of your hook to thread your dang tippet.

Don't ask me how I know this. But I now have a magnifier on my hat at all times.


I hope that helps.

Greg