Definition

Noun: - The total visual area that can be seen without moving the eyes: The "field of regard" refers to the entire expanse of the physical environment that is visible to an observer when the eyes are held in a fixed, steady position. It encompasses everything that falls within the visual perception at a single moment in time.

Usage Notes

• This is a technical term primarily used in optometry, ophthalmology, psychology, and ergonomics.
• It is distinct from the "field of view," which typically refers to the area visible through an optical instrument or the angular extent of a scene. The "field of regard" specifically emphasizes the total perceptual scene available to a stationary observer.
• It describes a static snapshot of visual perception.

Examples

• In an eye examination, the doctor measured the patient's field of regard to assess peripheral vision.
• The study compared the field of regard when using a single monitor versus a wide, curved display screen.
• Even with his head still, his wide field of regard allowed him to notice movement at the very edge of his vision.

Advanced Usage

• In Human Factors Research: The concept is crucial for designing interfaces (e.g., in aviation or vehicle dashboards) to ensure all critical information falls within the operator's typical field of regard.
• In Virtual Reality (VR): Developers consider the user's field of regard when rendering scenes to create a convincing and immersive experience without requiring excessive eye movement.

Variants and Related Words

• Field of View (FOV): Often used interchangeably in casual contexts, but technically, FOV is more about the measurable angular extent of the visible world or an optical system.
• Visual Field: A closely related medical term referring to the total area in which objects can be seen while the eye is focused on a central point.

Synonyms

• Static visual field
• Stationary visual panorama

Related Concepts (Not Phrasal Verbs or Idioms)

• Visual Perception: The broader cognitive process of interpreting information from the field of regard.
• Fixation Point: The central point where the eyes are directed within the field of regard.
• Peripheral Vision: The part of the field of regard that is outside the center of gaze.

Noun

1. all of the points of the physical environment that can be perceived by a stable eye at a given moment