Editing Virtual reality (section)

=== Relationship between display and field of view ===
[[File:Immersive Index In Theory larger.jpg|thumb|In theory, VR represents a participant's field of view (yellow area).]]
In assessing the achieved immersion by a VR device, we need to consider our field of view ([[FOV]]) in addition to image quality. Our eyes have a horizontal FOV from about 107 or 110 degrees to the temporal side to about 60 or 70 degrees toward the nose and a vertical FOV from about 95 degrees downward to 85 degrees upward,<ref name="myths">{{cite journal | last1 = Strasburger | first1 = Hans | title = Seven myths on crowding and peripheral vision | journal = i-Perception| volume = 11 |issue=2 | year = 2020 | pages=1–45| doi = 10.1177/2041669520913052 | pmid = 32489576 | pmc = 7238452 }}</ref> and eye movements are estimated as roughly 30 deg to either side horizontally and 20 vertically. Binocular vision is limited to the 120 or 140 degrees where the right and the left visual fields overlap. With eye movements, we have an FOV of roughly 300 degrees x 175 degrees with two eyes, i.e., approximately one third of the full 360-deg sphere.