How does our vision work? Our perception of detail varies across our field of view. To understand what exactly makes our vision the way it is, we can check out this interactive cartoon which does a good job explaining some of those complicated explanations, in a very simple form.

Put together by Randall Munroe over at XKCD, it explains how we perceive color, night vision and some other weird things like floaters and blue sky spirites.

Check it out at the source link: [XKCD]