Something interesting to do is to attempt to actually look at things with your peripheral vision. It is hard at first since we are used to turning our eyes and head towards an object when we try to see it.

You have to stare at something straight in front of you and try to get your brain, not your eyes, to focus on the periphery.

A really useless skill I guess, since your peripheral eyesight is really crappy and blurry, meant only for detecting motion. It is just interesting to try....