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EyeSensory organsVisual system

Eye

Adapted from Wikipedia · Explorer experience

A simple diagram showing the three main layers of the human eye to help learn about how eyes work.

Eyes are amazing tools that help animals see the world around them. They catch light and change it into messages for the brain. This helps animals know where things are and move safely.

There are different kinds of eyes. Some animals, like insects, have many small eyes called compound eyes. Others, like humans and rabbits, have one eye with a special part called a lens that focuses light. Even very simple eyes can tell light from dark.

Eyes help animals in many ways. Some animals can see far away, while others can see colors better. Even deep-water animals have big eyes to catch tiny bits of light. Eyes help animals find food, stay safe, and live in their homes.

Eye of a European bison

A refractive cornea type eye of a human. The cornea is the clear domed part covering the anterior chamber of the eye.

The eye of a red-tailed hawk

Images

A close-up view of the eyes of a mantis shrimp, showcasing their unique structure.
A detailed portrait of a blue bottle fly, showcasing its intricate anatomy and features.
A detailed close-up photograph of a human blue eye, showcasing its intricate features.
A detailed close-up of a closed human eye showing unusually long eyelashes, useful for learning about eye anatomy.
A close-up microscopic view of a house fly's compound eye, showing detailed structures.

This article is a child-friendly adaptation of the Wikipedia article on Eye, available under CC BY-SA 4.0.

Images from Wikimedia Commons. Tap any image to view credits and license.