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[[File:Field of View of Human Eye.jpg|thumb|250px|The size and shape of someone's right eye field of view]]
[[File:Field of View of Human Eye.jpg|thumb|250px|The size and shape of someone's right eye field of view]]
−'''Field of view''' is the observable visual extent of a view. It is usually measured in degrees.
+'''Field of view''' is the observable visual extent of a view. It is the space on the retina that is taken by something. Alternatively, it is the visual space taken by something.
+It is crudely measured in degrees.
Virtual reality headsets typically have a field of view of at least 90 degrees. The higher an [[HMD]]'s FOV is, the further the virtual world will extend to your edge of vision, also known as the [[visual periphery]].
Virtual reality headsets typically have a field of view of at least 90 degrees. The higher an [[HMD]]'s FOV is, the further the virtual world will extend to your edge of vision, also known as the [[visual periphery]].