Vision

Visual perception

Visual perception is the ability to detect light and use it to form an image of the surrounding environment. Photodetection without image formation is classified as light sensing. In most vertebrates, visual perception can be enabled by photopic vision or scotopic vision, with most vertebrates having both. Visual perception detects light (photons) in the visible spectrum reflected by objects in the environment or emitted by light sources. The visible range of light is defined by what is readily perceptible to humans, though the visual perception of non-humans often extends beyond the visual spectrum. The resulting perception is also known as vision, sight, or eyesight. The various physiological components involved in vision are referred to collectively as the visual system, and are the focus of much research in linguistics, psychology, cognitive science, neuroscience, and molecular biology, collectively referred to as vision science.

Visual system

The visual system is the physiological basis of visual perception. The system detects, transduces and interprets information concerning light within the visible range to construct an image and build a mental model of the surrounding environment. The visual system is associated with the eye and functionally divided into the optical system and the neural system.

Vision (Marvel Comics)

The Vision is a superhero appearing in American comic books published by Marvel Comics. Created by Roy Thomas and artist John Buscema, the character first appeared in The Avengers #57. The Vision is loosely based on the Timely Comics character of the same name who was an alien from another dimension. The character is an android built by the villainous robot Ultron created by Hank Pym. Originally intended to act as Ultron's "son" and destroy the Avengers, Vision instead turned on his creator and joined the Avengers to fight for the forces of good. Since then, he has been depicted as a frequent member of the team, and, for a time, was married to his teammate Scarlet Witch. He also served as a member of the Defenders, and is the father of Viv Vision.

vision

Noun

1. The sense or ability of sight.
2. Something seen; an object perceived visually.

Verb

1. To imagine something as if it were to be true.
2. To present as in a vision.