Human Eye Functions

the light-sensitive inner layer lining the back of the eye that converts the image formed by the lens into signals which reach the brain by way of the optic nerve

• iris

• lens

• optic nerve

• retina

• sclera

the opening located in the center of the iris that controls the amount of light entering the eye

• cornea

• iris

• lens

• pupil

• sclera

the colored part of the eye that changes in size to control the amount of light that enters the eye by changing the size of the pupil

• cornea

• iris

• lens

• pupil

• sclera

the clear part located just behind the iris that focuses light onto the retina

• cornea

• iris

• lens

• pupil

• sclera

What is the purpose of the iris in the eye?

• Help with hearing

• Control blood flow

• Regulate the amount of light entering the eye

• Aid in digestion

What is the dark opening in the middle of the iris?

• lens

• pupil

• optic nerve

• cornea

Ready to be an eye detective? 🕵️‍♂️ Let's see if you can spot this! Which part of the eye acts like a boss, controlling the amount of light that gets in? Choose wisely!

• Cornea

• Iris

• Retina

• Lens

Which structure acts as the eye's outermost lens that controls and focuses the entry of light into the eye

• Cornea

• Sclera

• Retina

• Optic Nerve

It contains pigments that give the eye its color. It has a muscle that dilates the pupil.

• sclera

• pupil

• iris

• cornea

What part of the eye does light enter through?

• iris

• retina

• cornea

• pupil