I was a touring bluegrass musician before, and the youngest ones in the band always had to make the set list. I realized there was a problem that I couldn’t see up close and I needed reading glasses.

Five months ago, I was asked to try out and then write about a pair of Caddis Readers – a high-end, a little on the pricey side, reading glasses. The pitch was that when fly anglers tie flies, tie ...