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Your eyes do move, and they point at other stuff, but the focal length afforded by the lenses is fixed (it makes as if everything was at a few meters IIRC). I

Your eyes do move, and they point at other stuff, but the focal length afforded by the lenses is fixed (it makes as if everything was at a few meters IIRC). I also wonder what could happen if the ciliary muscle isn't used enough. Does it get weak and you rapidly get short-sightedness, or is occasional exercise enough? Edit: maybe an answer could come from looking at people who recovered from extended comas. Does their visual acuity degrade? If not, that's promising. If yes, it could also come from other causes like the light of light (lack of UV light, especially during teenage years, has also been linked to short-sightedness).

jermaustin1 5y ago
> but the focal length afforded by the lenses is fixed That seems weird to me because when I look at a screen at a different distance to the one I'm using I can see the other screens getting blurry just like in real life.
- krastanov 5y ago
  My guess is that this has to do with stereoscopic vision, not focal distance. Does the other screen become simply washed-out blurry or is it double-vision-type of blurry?
  - jermaustin1 5y ago
    ok that makes sense. I actually just did this one eyed, and you are absolutely correct everything is in focus. So it must be just stereoscopy that looks that made me feel I'm focusing differently. That said, it isn't any more or less strenuous on my eyes than IRL except when the text is too small. Font smoothing still isn't great, but if the screen is big enough you dont notice it.