Functions of the Eye

The video explains how the human eye functions, focusing on Rookie's ability to see in the dark due to special eye parts. It covers the roles of the pupil and iris in controlling light entry, the cornea and lens in focusing light, and the retina and optic nerve in processing images. The video concludes with a summary of how the eyes, optic nerve, and brain collaborate to enable vision.

What allows Rookie to see in the dark?

• He uses night vision goggles.

• He has a flashlight.

• His eyes have special parts.

• He has a guide dog.

What happens to our pupils in bright light?

• They shrink.

• They disappear.

• They change color.

• They get bigger.

What is the role of the iris in the eye?

• It captures images.

• It controls the size of the pupil.

• It sends signals to the brain.

• It projects images on the retina.

How does the cornea contribute to vision?

• It sends signals to the optic nerve.

• It covers the retina.

• It bends light rays.

• It changes the color of the eye.

What is the function of the lens in the eye?

• It controls the size of the pupil.

• It sends images to the optic nerve.

• It focuses light on the retina.

• It changes the eye color.

What does the retina do with the light it receives?

• It changes the light into sound.

• It changes the light into heat.

• It sends images to the optic nerve.

• It reflects the light back.

What is the role of the optic nerve?

• It changes the color of the eye.

• It sends messages to the brain.

• It controls the size of the pupil.

• It changes light into sound.

How does the brain interpret what we see?

• By changing light into heat.

• By reflecting light back.

• By receiving signals from the optic nerve.

• By changing light into sound.

What is the main function of the eye's complex parts?

• To produce tears.

• To change light into sound.

• To gather and process visual information.

• To change the color of the eye.

What is the final step in the process of seeing?

• The optic nerve sends signals to the brain.

• The retina reflects light back.

• The iris changes the eye color.

• The lens changes light into sound.