How do you change the FoV in Crysis 3?

More importantly how do you use the "Clear Nanovision" in Crysis 3? default nanovision is killing my eyes qq

Clear nanovision command for crysis 2 doesn't seem to work on crysis 3..
r_NightVisionBrightLevel = 0
r_NightVisionCamMovNoiseAmount = 0
r_NightVisionCamMovNoiseBlendSpeed = 0

p.s. add me to crysis 3 mp in game friend list etc if you know me from crysis 2.
My crysis 2 game name is "aw3s0m0", i was in BAD clan but also played with TSLD(?) etc n played on other popular c2 servers.