“If the analogy of the eye's retina working as a sensor is drawn upon, the corresponding concept in human (and much of animal vision) is the
visual field.
[3] It is defined as "the number of degrees of visual angle during stable fixation of the eyes".
[4] Note that eye movements are excluded in the definition. Different animals have different visual fields, depending, among others, on the placement of the eyes.
Humans have a slightly over 210-degree forward-facing horizontal arc of their visual field,
[5][6] while some
birds have a complete or nearly complete 360-degree visual field.”
“For example,
binocular vision, which is the basis for
stereopsis and is important for
depth perception, covers 114 degrees (horizontally) of the visual field in humans;
[7]the remaining peripheral 40 degrees on each side have no binocular vision (because only one
eye can see those parts of the visual field).”
https://en.m.wikipedia.org/wiki/Field_of_view#Humans_and_animals
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