I have no visibility problems, as long as there's a semi-moon out. And as long as you don't need a meter to watch (like, if you're using a tone ID machine, or simply, a machine with no TID at all, etc....). There's usually enough star and moon-light to let you steer clear of bushes, trees, etc... And don't use a headlamp, because what happens is, your eyes will become fixed to that light (your pupils), and pretty soon, you can not see anything out side the beam. Better to let your eyes become adjusted to the dark, and it'll just be like walking at night: you don't need a light to walk down a country road, at night.
The reasons for hunting at night can be varied. Like, to fit with a work schedule, or to hit something before it's slated to be filled with fill-dirt the next morning, etc... And it's so peaceful anyhow. No kids or busy-bodies to ask questions, etc... Take a flashlight to stop and look at dates on coins, or whatever. Otherwise, just let your eyes adjust.