Sputnic

You can actualy train your eyes to work better in low light condiotions. It is something the british army has done since i joined back in 1999. Just go out for a walk or even just sit down in a dark area, away from street lights etc etc and try to focus on making objects out. I used to use the figure 8 technique which is to imagine i was drawing a figure 8 with my eyes over the object i wanted to focus on.

Over time you will find that your eyes work alot better than what you might expect them to in low light enviroments

very nice atricle, a very good read for those that have always wondered.