Understanding the Human Eye

Which part of the eye is responsible for focusing light onto the retina?

• Optic Nerve

• Iris

• Cornea

• Sclera

Which part of the eye is similar to a camera shutter?

• Retina

• Iris

• Lens

• Cornea

What is the primary function of the retina?

• To protect the eye from dirt

• To control the amount of light entering the eye

• To focus light onto the lens

• To convert images into electrical signals

How do eyelids contribute to eye protection?

• By controlling light entry

• By focusing light

• By converting images

• By keeping the eye moist

Why don't we see images upside down even though the eye captures them that way?

• The lens adjusts the image

• The brain flips the image

• The cornea corrects the image

• The pupil inverts the image