Goggles have to main component: the pair of lenses that provide various advantages (sometimes coupled with disadvantages) to the wearer at all times; and an optional vision processing module that also requires a power core to be installed in order to work.
Lenses (x2)
Frame
Vision processing module
Optional.
Using this slot will increase the total skill requirements by 10% of the occupying item's requirements.
Energy core
Optional.
Using this slot will increase the total skill requirements by 10% of the occupying item's requirements.