Making your character not see so far in the dark

Hey guys i am currently working on creating a horror game, I want to create an effect that limits the length of your sight to give the player a feeling of less controll and vision. I have set up some fog that already does this but I want the same effect on the lightning. I think amnesia the dark descent has this kind of effect aswell. Anyone know how to create this. (Sorry if I’m posting this at the wrong place)

attach light to camera.

when you move, light radius controls distance you can see