i think you can install sensors into anything that has capacity, like helmets iirc. given that the google glass has a camera in it and thats in 2013, i'd say yes, camera can take a slot in glasses, if not, stick it on a helmet. your head is going to be pointing pretty much where you are looking so that'd def work.
take a microphone, subvocal mic or microtransceiver. any of those would work and are pretty cheap, again plug them into your helmet;
Helmet (6 capacity)
-Trodes (-2 capacity)
-Camera, vision enhance (-1 capacity)
-Motion Sensor (-1 capacity)
-Microphone, spatial recognizer (-1 capacity)
-Laser range finder (-1 capacity)
tricked out sensor helmet!!, gives movement of things in 25m, their range from you, shows what you're looking at, what you're hearing and where its coming from and gives you DNI to help with weapon action efficiency and such (makes some simple actions into free actions). gives +2 to your armour as well!! :-)