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It's done by relaxing the muscles controlling your eye lenses and/or looking off in the distance, like you're looking at something behind your tv/monitor. It usually happens when you're tired or bored. I'm not entirely sure why people do it, some do it more than others. Maybe it's something a way to relax the muscles in your eyes so your vision doesn't deteriorate.
@NegativeCero: No, it's no eye problem. I think everyone can do it. I think it's just to relax a part of your vision, though it's not really that relaxing. It makes it so your eyes don't focus on any one thing. I want to know what it's called. I also just wondered, is it possible to get 20/8 vision? Huh. Oh, the reason it came up with it was because I was watching a YouTube video of some Modern Warfare 3 gameplay; I started thinking about the game and not so much on what I was watching, then I noticed my vision blurred the video out, as if my brain didn't want to multitask in a way.
I'm pretty sure that's just letting your eyes go out of focus. There's no special name for it, other than any special name given to regular focus mechanisms. You understand that you're constantly focusing and re-focusing your eyesight when you look at things at different distances, right? It's like with a pair of binoculars, or a microscope; the lenses can be perfectly shaped and aligned, but only for a very specific range. Anything else is blurry, until you adjust the focus to fit what you're trying to see.
And yes, as you've found, if you concentrate, it's something you can consciously adjust. Close one eye, and hold a hand in front of your face so it half covers your field of view. If you look at your hand, you can make yourself see it clearly, but everything behind it will be blurry. If you look at the monitor, your hand will go out of focus instead. That's all that's happening when you notice yourself zoning out in front of Uncharted 2. Instead of focusing on the screen, your eyes are relaxing, and looking into the middle distance.
You only really need especially fine control over your focus when looking at stereograms or magic eye pictures. Your eyes try to focus at the distance the 3D illusion presents itself, but you have to force them to adjust to the flat surface of the image, instead. The effort involved is one of the reasons why people complain about 3D effects giving them headaches or eye strain.
This was a way more serious answer than I wanted to give, but oh well.
ETA: And theoretically, yes, it may be possible for some people to focus their eyes independently. Most people can't, for much the same reason that most people can't make their eyes look in two different directions. You kind of treat both of your eyes as a single object, most of the time, and it's exceptionally unusual for people to do otherwise to any significant degree.
@gale: Wow. No, I guess I was a little too serious with my post to. I guess I don't want to know what it is in detail since I know why it happens, I just want to know what it's called. And no, actually the reason it happens when I played Uncharted 2 was because for me personally, it was kind of a sign that I was bored with the game and I'd rather focus on something more exciting. For games that bore me, it doesn't blur just an area, it blurs the whole screen. I know I said I don't know why it happens or what it is, but I was just curious for a while. Now I feel kind of stupid. It was a terrible question. I guess that's what I get for waking up and not thinking straight. How do I erase a thread? :P
Look, I know exactly what you're talking about I don't believe that the rest of you truly understands what he means when he says "blurring his vision" he means that it goes completely fuzzy and when you look at lights from a distance they have the color of the light surrounded in a rainbow kind of like you're separating the colors? Is that what you mean? Because if so I know what you're going through I've looked and looked and I can't find any REAL answers it frustrates me. It's at will there is no specific time when it just happens for me I can do it whenever, my eyes don't just relax or slowly start to blur its instant. I don't wear glasses and I've always have 20/20 it is something completely unreal, and another thing when I do it I can hear EVERYTHING and I mean everything, sometimes even the electric buzz from an appliance that is turned off or the sizzle in a light bulb, yes everything. I need answers and I want them. I know how you feel.
@tycobb: Google searches, usually. When you're looking up some obscure question, you'll frequently find threads on forums with strings of 1-post users spaced apart by months or years, asking the same question. It's most common in medical and tech-support questions, I've found.
I know it might be early in the judging, but c'mon, this is clearly...
THE BEST POINTLESS NECRO THREAD OF 2013!
Don't let the fun die now folks. I know, with our powers combined, we can keep this going way past a burger debate or an Anita argument. We haven't even scratched the surface of this sexxxy, controversial topic of eye blurring and the ability to or not thereof.
Dig in deep,
blur dat shit.
This is not simply crossing your eyes I've been able to do this since I was a child and I can do it while staring at myself in the mirror. I looked at that brown picture a few posts up and blurred it as well. This is very strange I've never met another person who quite understands what I'm talking about when I describe it so until now I just don't ever bring it up.
@ntm: pretty late for a response but I know exactly what your talking about. You can blur your eyes at any point and move around, look at other things like normal but while blurring your eyes right? It feels like the muscles in my eyes are pushing forward or flexing like I would my biceps. For me I believe it make me near sighted as everything in the distance is blurred but things about 4 inches away are clear. The only thing I've found it to be useful when I look at those pictures where it's just black and white lines and you have to shake your head to see the hidden picture I don't need to if I blur my eyes. Anyways I get you unlike most of the comments on here.
Why would anyone think this was a unique ability? It's just unfocusing your eyes. I do it all the time while drawing from a figure. It helps me look at a scene as areas of light and dark instead of as three dimensional objects.
For real, though, every human with properly functioning eyes can do this. Your eye changes its focal length all the time.
Ok people, its not the same as focusing on one thing and blurring everything else out. Its simply blurring EVERYTHING. Near and far. I was just having a convo with people who thought it was strange that I can do this and had to look it up. I have 20/20 vision too. Thats the similarity I've found in all those who have posted that they can blur everything.
I can't believe people think this is a thing. Anyone and everyone is capable of defocusing their eyes.
More interesting question: can anyone else vibrate their eyes back and forth very rapidly such that everything is a blurry mess bouncing left to right? I can do it, I have a couple of cousins who can do it, but otherwise I've never met anyone else who could. Not that I normally go around asking strangers if they can vibrate their eyes back and forth...
Hello internet, google brought me here. I was curious why I would have a skill of blurring my eyes. It's not like crossing your eyes I see it like unfocusing but who knows how to explain how to do it. Funny I think of it like eagle vision but of course by ubfocusing its only blurry. 20/20 vision left eye is 20/15 lol learned at Meps and color deficiant. Maybe just a useless skill to do.
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