Visual field
Area that can be seen when an eye is fixed straight at a point / From Wikipedia, the free encyclopedia
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The visual field is the "spatial array of visual sensations available to observation in introspectionist psychological experiments".[1] Or simply, visual field can be defined as the entire area that can be seen when an eye is fixed straight at a point.[2]
The equivalent concept for optical instruments and image sensors is the field of view (FOV).
In optometry, ophthalmology, and neurology, a visual field test is used to determine whether the visual field is affected by diseases that cause local scotoma or a more extensive loss of vision or a reduction in sensitivity (increase in threshold).