Goggles with a small inner surface, semblance of gears surrounding vision, faint light pointing radially inward from gear spokes naturally divides vision into regions, which encourages structure and aids in measurement (or so the packaging says). Step forward 50 years, and there's a togglable switch labelled vector which causes builtin-and-trainable software to produce wireframe or ghost vectorisations of objects near the centre of vision suggesting rotations, twitches of the eye measure distances between points. Caution: may cause people to have the mannerisms to activate these features look odd when performed when not wearing them. But you wouldn't ever remove your goggles, would you?
I guess steampunk would become just a style, in personal technology, when implants become availabile.