ya i have a condition cause by nerve damage from when i had cancer as a kid.
I see better when it is pitch black then if say i am driving at dark with a little light. It has to do with one of my pupils are smaller then the other and will not enlarge. when the smaller changes at night the larger one gets bigger no idea way just happens. i could not see enough to shoot something. but it helps walking and seeing at night.
In fact if there is a light such as a street light or lamp around i can not see crap. One reason i have lowered the amount of night driving i do.
ORIGINAL: racewayking
I carry one in the pack but never use it to walk in. I know the areas I hunt and I see better than a lot of people in the dark. If I do use a light walking in it is my Browning light with a red bulb.