The Human Eye

the opening in our eyes which change shape depending on the movement of the iris

• pupil

• cornea

• lens

• retina

eyelids, eyelashes and eyebrows help to protect our eyes

• true

• false

• sometimes

• only in bright light

the whites, outer, protective layer of your eyeball

• cornea

• iris

• sclera

• retina

farsighted means your eye sees items far away better than items that are close

• true

• false

• it means you can only see close objects clearly

• it means your vision is perfect

the number of muscles that are responsible for moving our eyes up and down, side to side, and around

• 4

• 6

• 8

• 10

if the cornea of our eye is like a "windshield" then this structure is like a "windshield wiper"

• eye lids

• pupil

• iris

• sclera

What begins the process of refracting light that enters our eye?

• lens

• pupil

• cornea

• retina

contains millions of light receptor cells called rods and cones

• cornea

• lens

• retina

• iris

regulates how much light enters the eye

• cornea

• lens

• iris

• pupil

the pathway through which electrical impulses send visual images to our brain

• optic nerve

• retina

• cornea

• lens