I'm not getting regular eye exams. I had a free cursory one here at work last year and they said my magnification was right for me. In HS I had an eye exam and the doc asked me if I could read the printing on the edge of the doorknob, my far vision is so good.
With my job it would be best for me to have glasses designed for me. I think there was a mention of a slight astigmatism, some years ago, but I don't really know what that means.