Parts of the eye quiz

Which part of the eye changes size to let light in?

• Cornea

• Lens

• Pupil

• Iris

What is the function of the lens in the eye?

• To protect the eye from dust and debris.

• To focus light onto the retina.

• To produce tears for lubrication.

• To control the amount of light entering the eye.

What is the black circular part of the eye called?

• Iris

• Cornea

• Pupil

• Sclera

Which part of the eye helps maintain its shape?

• Cornea

• Iris

• Sclera

• Retina

What is the first layer of the eye?

• Cornea

• Iris

• Lens

• Retina

What is the function of the sclera?

• It regulates the amount of light entering the eye.

• It provides protection and structure to the eye.

• It helps in the production of tears.

• It is responsible for color perception.

What is the difference between the cornea and the lens?

• The cornea is the outer layer that helps focus light, while the lens further adjusts the focus.

• The cornea is responsible for color perception, while the lens is responsible for depth perception.

• The cornea is a flexible structure that changes shape, while the lens is rigid and fixed.

• The cornea protects the eye from dust, while the lens helps in night vision.

What happens to the pupil in bright light?

• The pupil dilates (gets larger) to let in more light.

• The pupil constricts (gets smaller) to let in less light.

• The pupil remains the same size regardless of light conditions.

• The pupil changes color in response to bright light.

What happens to the pupil in dim light?

• The pupil constricts (gets smaller) to reduce light intake.

• The pupil dilates (gets larger) to allow more light in.

• The pupil remains unchanged regardless of light conditions.

• The pupil changes color to adapt to the light.

What is the retina responsible for?

• Converting sound waves into electrical signals

• Converting light into electrical signals that are sent to the brain.

• Filtering out harmful UV rays from sunlight

• Regulating the amount of light that enters the eye