Field of regard and Visual percept

Field of regard noun - All of the points of the physical environment that can be perceived by a stable eye at a given moment.

Visual percept and field of regard are semantically related. In some cases you can use "Visual percept" instead a noun phrase "Field of regard".

Visual percept noun - A percept that arises from the eyes; an image in the visual system.

Field of regard and visual percept are semantically related. Sometimes you can replace phrase "Field of regard" with "Visual percept", this phrases are similar.