しや視野shiya
1.

The range that can be seen from a fixed position without moving the eyes, encompassing everything within that visual scope.

2.

The area or scope visible through optical instruments such as telescopes or microscopes, indicating what can be observed through the lens.

3.

The extent of one's perspective in terms of thoughts, considerations, or judgments, often involving how broadly or narrowly one perceives situations.

4.

The scope of possibilities that should be taken into account when planning or making decisions, reflecting the breadth of foresight in considerations.

Example:

彼らはついに視野から消えた。

しやきょうさく視野狭窄shiyakyousaku
1.

A condition in which a person's field of vision becomes limited, often characterized by a reduction in peripheral vision and potentially impacting overall sight.

2.

A metaphorical expression describing a mindset that lacks openness or flexibility, leading to difficulty in considering broader perspectives.

3.

A visual impairment resulting from various medical issues affecting the eyes or optic pathways, which restricts the ability to see surroundings clearly.

しやかく視野角shiyakaku
1.

The specific angular range within which the content displayed on a screen can be viewed accurately, without significant distortion of color or contrast, typically in liquid crystal displays.

2.

The angle that defines how wide or narrow the perspective is in which visual information remains clear and consistent, affecting the user's experience when viewing screens from different positions.

3.

The measure of the extent to which a display can be viewed satisfactorily from various directions, indicating the optimal positions for clarity and fidelity of the image being presented.