Changes

[[File:Chromostereopsis.png|thumb|Focal conflict in a [[chromostereogram]]. Look at this image in full screen.]]

[[File:Chromostereopsis.png|thumb|Focal conflict in a [[chromostereogram]]. Look at this image in full screen.]]

A '''vergence-accommodation conflict''', also known as a '''focal conflict''', is when a brain receives mismatching cues between eyes' accommodative [[focus]] and [[vergence]]. It results in the human brain not being sure of the distance of something. It is disorienting.

A '''vergence-accommodation conflict''', also known as a '''focal conflict''', is when a brain receives mismatching cues between eyes [[focus]] and angle, known as [[vergence]]. It results in pain and confusion. It is disorienting.

The effect can be unpleasant and cause eye strain. This can happen with fixed-focus twosight displays, such as VR headsets and AR headsets, for example the [[Meta Quest]], [[Oculus Rift]], and [[Microsoft HoloLens]]. Focal conflict can occur in binocular flat focus autostereoscopic displays.  

The effect can be unpleasant and cause eye strain. This can happen with fixed-focus twosight displays, such as VR headsets and AR headsets, for example the [[Meta Quest]], [[Oculus Rift]], and [[Microsoft HoloLens]]. Focal conflict can occur in binocular flat focus autostereoscopic displays.