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Encyclopedia

From Wikipedia, the free encyclopedia

Sight may refer to:

In literature

  • The Sight, the first book of the Warriors: Power of Three novel series by Erin Hunter
  • The Sight, a book about wolves by David Clement-Davies

Simple English

) and ventral stream (purple) are shown.]] Sight is one of the senses. Having sight means to be able to see. Seeing gives animals knowledge of the world. Light from the world around the animal carries this knowledge in colors and pictures of shapes. The light enters the animal's eyes, and a part of the eye called the lens sends information from the light to a part of the eye called the retina. The retina is further back in the eye.

When the information from the light reaches the retina, it goes to the brain, which is able to find out the shapes and colors of objects. From that and from memory, it can tell of what kind the object is. For example, it can somehow tell a tree from a house. The path on which this kind of information flows is called ventral stream.

The brain can also tell where objects are. For example, it can tell how far away an object is (this is called hand-eye coordination). This is needed when catching a ball. The path on which this kind of information flows is called dorsal stream.


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