How the Eyes Work

This part of the eye carries the message from your eye to the part of your brain that controls vision. 

• cornea
• lens
• optic nerve
• retina

The back of the eye;  an upside-down image of whatever you are looking at is projected here. 

• lens
• cornea
• pupi
• retina

The first part of the eye that light hits. 

• lens
• cornea
• pupil
• retina

Sends messages to your brain

• neurons
• optic nerve
• retina
• motor neuron

Tags

NGSS.MS-LS1-8

Lets the light in and it is the black portion of eye.

• pupil
• retina
• lens
• cornea

It protects the eye.

• lens
• pupil
• iris
• Cornea

Gathers information about color, shape, and size of eye and sends to the optic nerve.

• optic nerve
• Retina
• Neuron
• cornea

Controls how much light enters the eye by changes the size of the pupil. It is also the color part of your eye.

• iris
• cornea
• Retina
• pupil

Focusing light onto the retina and flips the image in the back of the eye.

• Retina
• lens
• Iris
• Neurons

What part of the human eye opens and closes to adjust the total amount of light entering the eye.

• Human lens

• Cornea

• Scelera

• Iris