You are still focused on a nearby screen. It just looks like a large screen at a distance due to the stereoscopic effect. The Oculus' lenses simulate a focal distance of 1.3 meters, which is not much better than a tablet in your lap. Another problem is that Oculus' focal distance is fixed, so you are not exercising your eye's ability to change focus. This isn't directly a problem that you wish to address in your comment above, but you may want to consider it. A technology that will better address these issues is the light field display. See: https://research.nvidia.com/publication/near-eye-light-field...
My understanding is that the optics are designed to actually be at an infinite focus.
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Short question:
> Now I read about this HMD Oculus Rift, which claims that you are always focused on the "distance" which I assume is the same as infinity focus in photography.
The short answer:
> In the same way as a telescope eyepiece, they create a virtual image at infinity.
> In the HUD the objective lens focus the image from a display (on the left in the diagram) and the lens at the front of the HUD reimages it at infinity.
But the key for me is someone who isn't myopic noticing that ...
> I've been able to see far away objects much sharper than I was able before, as if my sight was getting trained at infinity focus (which makes sense, I guess).
Thank you, colordrops! I looked for official, or at least more definitive, information on the focal distance to no avail. This definitely qualifies!
That said, it is of the DK2, which is clearly different than the DK1. Which leads me to wonder what the focal distance is for the Gear VR (Note4) and the new Gear VR.
Sadly, I'm so nearsighted at this point, that I have a hard time reading anything more than ≈4 inches away (things are out of focus at ≈2 inches away, but it's good enough and there are typically enough clues in the 2~4 inch range that I can still read normal text). In other words, if I'm only training my eyes at a distance of 30.5 inches for the next half decade, I suspect it will still be enough to lead to an improvement, and there will be even more improvements in tech (both in the VR & optometry) during that time frame.
