You eat a lot of carrots, which could help your vitamin A, or whatever it is that helps you see.

Uhm... well many people can see in night as well as in light.. To explain this, we have to look deep into the structure of eye and the arrangement of photo receptors in your eyes... there are two types of photoreceptors in our eye... they are rods and cones... rods involve in non-colour vision and they are highly sensitive to light.... but, they don't recognise colour... cones on the other side, they are not very sensitive to light which means they need lots of light but they are sensitive to colour... they see colour... there are around 120 million rodss and 6 million cones... in average human adult eye... but, wiat there's a distribution difference.. the mid area(fovea) of the eye's screen(retina) has lots of cones but very less rods.. and, the peripheral region has lotsa rods but very less cones... so, this leads to a difference in sensitivity of the eyes... at night you can see what's in your peripheral region more clearly and during the day you can see what is right in front of your focus very clearly... normally we humans are spending most of oru life in light and so we tend to focus our eyes in our object of interest even at night when we are supposed to look at our interetsed objects with our peripheral rgeion for better clarity at night.. so, if you can learn to look with yoru peripheral view, you can possibly clearly see much clearly at night.. moreover, if you tend to spend lots of time in dark, your eyes will possibly adapt to look better at dark... iris also plays a major role in regulating light entering eyes..

I don't know, do you eat a lot of carrots, they say carrots are good for your vision.

You ancsetors were poor and had to sleep outdoors :) While, that may be valid, I think it has to with the number of "cones" and the other thing in your eyes. The first comment refers to evolution, leading up to you having more cones.

How old are you? My night vision has gotten worse as I have aged, but it was fine in my younger days.

I think it was because you were raised by bats.................