A dense technical diagram displays the mechanical components and instruments of optometry equipment rendered in fine black line work against a white ground. The composition centers on a large phoropter flanked by smaller optical tools, lenses, and testing devices arranged in a systematic, patent-drawing style that captures the intricate engineering behind vision correction. At home in a medical office, optometrist's workspace, or a professional's study. Made to order by hand at our own Denver facility, it arrives as nine wood panels, each a half-inch thick with a keyhole on the back so it hangs easily. The natural grain shows through the artwork, so no two come out exactly alike.