When your peripheral vision narrows, your brain tightens neck muscles as a protective response, preparing you for danger from unseen directions. This can lead to chronic neck stiffness or pain.
Because think about this, if your peripheral field narrows, which does happen, if you are only seeing here instead of here, your brain knows that it can't detect what's happening outside of that area and it should be able to. So now it's going to naturally slightly tense up or even cause pain so you can be prepared to take on some kind of hit or some kind of danger coming that way that you don't see. Now that could also relate to pain. Your brain might be saying, don't turn your head in certain ways because I already can't see over here. So for example, if your peripheral field is limited on this side and you're only seeing to here and not to here, then what's happening is your brain's going, whenever I turn my head this way, I'm seeing even less of what's happening on that side. So I'm not, I'm not thinking that's safe. So I'm going to give you pain in the neck so that you don't turn your head that way as much or as quickly.
Stop Stretching Your Neck. Try This Instead (It Might Improve Your Vision Too)
