Eye simple drawing movie#

These fibers are attached to a muscle called the ciliary (say: SIL-ee-air-ee) body. The lens is suspended in the eye by a bunch of fibers. The retina takes the light the eye receives and changes it into nerve signals so the brain can understand what the eye is seeing. It holds millions of cells that are sensitive to light. Your retina is in the very back of the eye. In the eye's case, however, the film screen is your retina.

Eye simple drawing movie#

This light goes through a powerful lens, which is focusing the images onto the screen, so you can see the movie clearly. Next time you sit in the dark theater, look behind you at the stream of light coming from the projection booth. The lens works much like the lens of a movie projector at the movies. The lens' job is to focus light rays on the back of the eyeball - a part called the retina (say: RET-i-nuh). The lens sits behind the iris and is clear and colorless. After light enters the pupil, it hits the lens. These next parts are really cool, but you can't see them with just your own eyes! Doctors use special microscopes to look at these inner parts of the eye, such as the lens. This space is filled with a special transparent fluid that nourishes the eye and keeps it healthy. The anterior (say: AN-teer-ee-ur) chamber is the space between the cornea and the iris. The pupils will get smaller when the light shines near them and they'll open wider when the light is gone. To see how this works, use a small flashlight to see how your eyes or a friend's eyes respond to changes in brightness. The pupil is the black circle in the center of the iris, which is really an opening in the iris, and it lets light enter the eye. This allows the iris to control how much light goes through the pupil (say: PYOO-pul). When we say a person has blue eyes, we really mean the person has blue irises! The iris has muscles attached to it that change its shape. The iris (say: EYE-riss) is the colorful part of the eye. Iris Is The Colorful PartД«ehind the cornea are the iris, the pupil, and the anterior chamber. Like clear glass, the cornea gives your eye a clear window to view the world through. It is a very important part of the eye, but you can hardly see it because it's made of clear tissue. The cornea helps the eye focus as light makes its way through. The cornea (say: KOR-nee-uh), a transparent dome, sits in front of the colored part of the eye. These are blood vessels, the tiny tubes that deliver blood, to the sclera. Look very closely at the white of the eye, and you'll see lines that look like tiny pink threads. Think of the sclera as your eyeball's outer coat. The sclera is made of a tough material and has the important job of covering most of the eyeball. The white part of the eyeball is called the sclera (say: SKLAIR-uh). They work with the eyelids to keep dirt and other unwanted stuff out of your eyes. And speaking of fluttering, don't forget eyelashes. Your friend's eyelids shut automatically to protect the eye from possible danger. And if you flutter your fingers close (but not too close!) to your friend's eyes, you'll be sure to see your friend's eyes blink. When you step into bright light, for example, the eyelids squeeze together tightly to protect your eyes until they can adjust to the light. The eyelid also has great reflexes, which are automatic body responses, that protect the eye. This is called blinking, and it's both a voluntary and involuntary action, meaning you can blink whenever you want to, but it also happens without you even thinking about it. The lid helps keep the eye clean and moist by opening and shutting several times a minute. The eyelid protects the front part of the eye. The eye is about as big as a ping-pong ball and sits in a little hollow area (the eye socket) in the skull. Most friends won't say OK if you ask to see their liver! Some of the eye's parts are easy to see, so most friends will say OK.

You can check out different parts of the eye by looking at your own eye in the mirror or by looking at (but not touching) a friend's eye. So, come on - let's take a tour of its many parts. You can see that the eye's pretty amazing.

Then they send the information to your brain for processing so the brain knows what's going on outside of your body. They take in tons of information about the world around you - shapes, colors, movements, and more. Your eyes are at work from the moment you wake up to the moment you close them to go to sleep. Which part of your body lets you read the back of a cereal box, check out a rainbow, and see a softball heading your way? Which part lets you cry when you're sad and makes tears to protect itself? Which part has muscles that adjust to let you focus on things that are close up or far away? If you guessed the eye, you're right!