Eye - Simple English Wikipedia, the free encyclopedia

# Eye

### From Simple English Wikipedia, the free encyclopedia

This is a human eye.
Light from a single point of a distant object and light from a single point of a near object being brought to a focus.

The eye is the part of the body that lets people see. Humans and most animals have two eyes.

The eye is an organ for the purpose of sensing light. The simplest eyes (such as those of some animals) see nothing but whether the area around is light or dark. More complex eyes give the full sense of vision, including color, motion, and texture.

Eyes have a special shape that makes light rays focus on the back part of the eye, called the retina. The retina helps the eyes get used to the lights, and helps them to see better when in a different lighting. The lens on the front part of the eye is curved and acts like a camera lens. It can be pulled flatter or rounder by muscles inside the eye. As some people get older, they might not be as able to do this. Many people are born with other sight problems or get them later in life, and they may need eyeglasses (or contact lenses) to fix the problem.

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Categories: Basic English 850 words | Sensory system

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