The eyes have a great built in system to notice movement while sitting stationary. Just by turning your head, you can see movement between background and foreground objects when you pay attention to seeing the movement. It is amazing how much you can see when you’re looking for it. You actually kill 3 birds with one stone as I mentioned in my Eye-Piphony post, When you notice movement it also allows you to treat your eyes like mirrors. relaxes the extra-ocular muscles.
When you are mobile, ie. walking, riding in a car, etc, your eyes don’t have to work as hard to notice movement because…you’re already moving. You only have to notice the distance changes between two (or more) objects.
Take a look at this series of image below. The objects that I’m looking at are the grey model of the Millennium Falcon and the Guitar on the wall.
In the first image we see they are stacked in front of each other.
As I walk, in the next image they start to separate with the guitar on the left and the model on the right. I’m still looking at both items at the same time.
As I continue to walk, the separation distance gets even greater.
Finally one object starts to moves out of view.
After one object moves out of view I find two new objects to observe. Sometimes I switch to new objects before the ones I’m looking at are completely out of view.
When you are mobile and start noticing the distance changes between objects as they converge and diverge, this goes right back to the Eye-Phiphony post of killing 3 birds with one stone! I use to zone out while driving or walking and just let stuff pass me by but now I try to always make a conscious effort to track at least two or more objects converging and diverging while I’m mobile. The more I do this, the easier it is to see and bonus it really corrects astigmatism and double vision issues!
Everyday, I walk outside for at least a half hour in good sunlight so I can notice mobile peripheral movement. Indoors I would tense up and put more stress on my eyes but now I’m getting to the point where what I do outside in good light, I also do indoors in less ideal conditions. Again the more you practice noticing movement whether stationary or mobile, the faster you’ll correct your vision!