Goggles are a common accessory for steampunk enthusiasts. Aviation goggles and blowtorching goggles are among the most popular, though goggles may be incorporated into ones glasses as well (see Doctor Steel).
Goggles do not necessarily have to be functional, as many enthusiasts wear them as a hair band, on top of their heads, around their necks, or on top of their hats.
Goggles serve many purposes in the world of steampunk such as keeping the wind on an airship from drying out your eyes, protection from dangerous chemicals for the mad scientist, and protection from sparks, and hot steam in the lab or boiler room.
During the nineteenth and early twentieth century, people wore goggles when riding in horseles carriages. Some, no doubt, were wearing goggles as a normal part of their attire well prior to the advent of the horseless carriage, but goggles advertised to all and sundry that the wearer was of the working class. It was not until the upper crust began riding around in horseless carriages that they too found a need for the protection of goggles.