Focal distance is dependent on the lenses used. Most VR headsets have a fixed focal distance of 1.3m or 2m. Those interested in the literature can use the keywo

Focal distance is dependent on the lenses used. Most VR headsets have a fixed focal distance of 1.3m or 2m. Those interested in the literature can use the keyword "vergence-accomodation conflict" (VAC) for more information on this. This is a well known problem, and there are quite a few potential solutions - Doug Lanman, the lead of Display Systems Research @ FRL made a bunch of nice presentations on a variety of different approaches a couple years ago (all on YouTube, well worth watching one [1] for anyone with a passing interest in the really cool developments going on). While I think varifocal is going to be the near-term solution, I do have a soft spot for the various light field displays I've seen. [1] EI 2020 Plenary: Quality Screen Time: Leveraging Computational Displays for Spatial Computing https://www.youtube.com/watch?v=LQwMAl9bGNY https://www.youtube.com/watch?v=LQwMAl9bGNY