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Sight
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Sight is one of the five senses and is the aspect of seeing. The eye detects electromagnetic waves with the visible spectrum and the brain interprets these signals and perceives distant reality based upon them. Having two or more eyes allows for depth perception. While humans see in color, many other species do not. Color vision is most restricted at night or in deeper water depths.
Someone who no longer has sight is blind.
- Snippet from Wikipedia: Visual perception
Visual perception is the ability to interpret the surrounding environment through photopic vision (daytime vision), color vision, scotopic vision (night vision), and mesopic vision (twilight vision), using light in the visible spectrum reflected by objects in the environment. This is different from visual acuity, which refers to how clearly a person sees (for example "20/20 vision"). A person can have problems with visual perceptual processing even if they have 20/20 vision.
The resulting perception is also known as vision, sight, or eyesight (adjectives visual, optical, and ocular, respectively). 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.
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- sight on Wiktionary
- sight on DuckDuckGo
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