Curious Idea About 3D Headaches - HTC EVO 3D

So, I don't have any background or research into this and this is just speculation based on some observations. I might be on a completely other planet with this...
But, I hear a lot of people make the remark about how 3D gives them headaches or hurts their eyes. I'm sure there's a lot to it, but I'm also thinking it has something to do with how our eyes work vs 3d cameras.
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
Our eyes criss-cross as we look at closer/further objects. If you don't believe me, try looking at your nose or have someone else look at their nose and watch their eyes. This is what we're used to, it gives us depth and the 2 varying angles of what we are looking at.
The Evo 3D, Optimus 3D, and virtually every other 3D camera I've seen has 2 fixed lenses pointing straight out. I understand why - it would be way too difficult to be able to know how much to angle the lenses based on what you're focusing on, it would be costly, and less durable. But because they're pointing straight forward and don't cross, it's really just recording a double image with little difference in the angle. Not to mention, this isn't a natural view.
I'm wondering if this has anything to do with the discomfort of people viewing 3D. I don't really have much of a problem with seeing anything in 3D, but I used to. When I first got my E3D, 3D pictures hurt my eyes, but video was fine. I later got glasses, found out my eyes are a hair pointing away from each other (to the point where it's not noticeable). Now, I have more depth from anything I watch in 3D and the photos don't hurt my eyes. But I do notice a double image effect if I look into the background on many things. I know this is because you can't exactly line up the whole image, but it led me to think about the differences.
Now this doesn't offer a solution and is probably a pointless post, but was an interesting idea that someone might enjoy discussing.

---

It'll strain your eyes some because they have to focus on the light from the screen instead of where it should be if looking past or in front of it. But, most of the headache is from your brain trying to figure out what the hell you're looking at. So basically people with weak minds get headaches more often.
If you can find 3D pics or videos with a slight border around them it helps out a ton with that. It also makes the 3D effect much more pronounced.

---

The issue with 3D is the content dictates what is in focus, not you. If you try to only focus on what is already in focus you should be ok. But it is when you try to focus on distant, out of focus objects, which you will never be able to actually bring into focus, that you cause strain

---

Dont forget the refresh issue too, you dont get your regular 60fps, you get (polarized left) (blank) (polarized right) (blank) and so on, and while you wont consciously "see" the blank screen your brain has to work harder to edit it, this increase strain by quite a bit.

---

xHausx said:
So basically people with weak minds get headaches more often.
Click to expand...
Click to collapse
if there is any way to OC our minds

---

NixZero said:
Dont forget the refresh issue too, you dont get your regular 60fps, you get (polarized left) (blank) (polarized right) (blank) and so on, and while you wont consciously "see" the blank screen your brain has to work harder to edit it, this increase strain by quite a bit.
Click to expand...
Click to collapse
Our screens aren't polarized. Neither are our eyes equipped to handle polarized content.
3D videos are the standard fps for each eye and there's a parallax barrier that decides which image goes to which eye. Take a look at any 3D video, you can clearly see that each eye's image is there, full frame rate

---

two things happening
One reason for the headaches/eye strain is due a mismatch between where we focus and where we point our eyes.
As stated above, when we look up close our eyes point in (converge) and we bring the near object into focus (accommodate).
This works really well in the real world and helps our brains decide where things are in space.
With artificial 3D, we continue to focus (accommodate) at the screen, but in order to appreciate the 3D, we need to vary our convergence. This mismatch gives some people (about 20% of the population) varying degrees of eyestrain/headaches.

---

Great thread! Lotta nice info here.

---

I get eye strains with pictures only but Im okey with the videos.