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Do the adjustable lenses work if you have an astigmatism? This biggest concern I have about VR, especially for work, is that it forces you to spend too much ti

Do the adjustable lenses work if you have an astigmatism? This biggest concern I have about VR, especially for work, is that it forces you to spend too much time looking a screen that is very close to your eyes. This is known to cause myopia and digital eyestrain. Do any VR headsets attempt to address this problem? Can a headset force your eyes to change focal distance either using the display, or more likely, a physical lens? Ideally the headset would slowly, but consistently, force you to change your eyes focal distance. Is that something that Eye Tracking would enable? Also, does eye tracking work properly if your eyes are slightly misaligned?

dharmab 2y ago
VR headsets use lenses which focus the image at a long distance. It is like standing outside and looking at a distant hill, not at all like holding a phone up to your eyes.
jsheard 2y ago
As far as your eyes are concerned the screen isn't actually that close, the optics in VR headsets are arranged such that the perceived focal distance is always about 2 meters away. That can have the odd effect of "fixing" nearsightedness in VR because no matter how far away something is in virtual space, your eyes only have to focus at ~2m.
- entropicdrifter 2y ago
  To be fair, though, staring at a screen for 8+ hours a day can give you digital eyestrain and nearsightedness even if it's 2m away the whole time.
  - jsheard 2y ago
    True. I think there have been attempts to make headsets with dynamic focal distance, but to date none of them have been commercialized even at the high end.
    - hnuser123456 2y ago
      Yes, just prototypes: https://www.uploadvr.com/meta-butterscotch-varifocal-prototype-retinal-hands-on/ https://www.uploadvr.com/meta-butterscotch-varifocal-prototy...
corysama 2y ago
The lens page https://store.bigscreenvr.com/products/prescription-lens-inserts-for-beyond https://store.bigscreenvr.com/products/prescription-lens-ins...? asks for SPH and CYL. My understanding is that CYL is your level of astigmatism. All available VR headsets have a fixed focal distance, usually 2 meters, regardless of how close or far the virtual content is from your head. Eye tracking is done independently per eye.

dharmab 2y ago

VR headsets use lenses which focus the image at a long distance. It is like standing outside and looking at a distant hill, not at all like holding a phone up to your eyes.

jsheard 2y ago

As far as your eyes are concerned the screen isn't actually that close, the optics in VR headsets are arranged such that the perceived focal distance is always about 2 meters away. That can have the odd effect of "fixing" nearsightedness in VR because no matter how far away something is in virtual space, your eyes only have to focus at ~2m.

entropicdrifter 2y ago
To be fair, though, staring at a screen for 8+ hours a day can give you digital eyestrain and nearsightedness even if it's 2m away the whole time.
- jsheard 2y ago
  True. I think there have been attempts to make headsets with dynamic focal distance, but to date none of them have been commercialized even at the high end.
  - hnuser123456 2y ago
    Yes, just prototypes: https://www.uploadvr.com/meta-butterscotch-varifocal-prototype-retinal-hands-on/ https://www.uploadvr.com/meta-butterscotch-varifocal-prototy...

corysama 2y ago

The lens page https://store.bigscreenvr.com/products/prescription-lens-inserts-for-beyond https://store.bigscreenvr.com/products/prescription-lens-ins...? asks for SPH and CYL. My understanding is that CYL is your level of astigmatism. All available VR headsets have a fixed focal distance, usually 2 meters, regardless of how close or far the virtual content is from your head. Eye tracking is done independently per eye.