A small window in a door which allows people to look through without opening the door.

A political view that encompasses the longer-term as distinct from short-term objectives.

The part of vision that occurs outside the gaze or central area of focus.

Alternative form of visual purple

Having or characterised by tunnel-vision.

The ability, either naturally, by technology or by superpowers, to see in a low light or even dark environment.

The ability to see clearly an image that is relatively far away (greater than about 36 inches)

The ability to see clearly an image that is relatively close (about 10 to 13 inches)

(artificial intelligence) The science and technology of machines that see, concerned with the theory for building artificial systems that obtain information from images, such as a video sequence, views from multiple cameras, or multi-dimensional data from a medical scanner.

A form of mission statement, issued by a company or organization, in which its intentions for the future are stated