What is the main function of the eye?

• To regulate body temperature.

• To protect the brain from injury.

• To produce tears for emotional expression.

• To receive light and enable vision.

Name the outermost layer of the eye.

• Cornea

• Sclera

• Iris

• Retina

What part of the eye controls the amount of light entering?

• Cornea

• Iris

• Pupil

• Retina

What is the function of the cornea?

• The cornea helps to focus light onto the retina and protects the eye.

• The cornea regulates the pressure inside the eye.

• The cornea produces tears to keep the eye moist.

• The cornea is responsible for color vision.

Which part of the eye contains the photoreceptors?

• Retina

• Cornea

• Iris

• Lens

What is the role of the lens in the eye?

• The lens produces tears to keep the eye moist.

• The lens focuses light onto the retina.

• The lens regulates the temperature of the eye.

• The lens absorbs light to protect the eye.

What is the function of the retina?

• The function of the retina is to convert light into neural signals for vision.

• To regulate the amount of light entering the eye.

• To focus light onto the lens.

• To protect the eye from dust and debris.

Which part of the eye is responsible for color vision?

• Retina (cone cells)

• Cornea

• Iris

• Lens

What is the purpose of the pupil?

• To focus light onto the retina.

• To provide color to the eye.

• To protect the eye from dust.

• To control the amount of light entering the eye.

How does the eye focus on near and far objects?

• The eye focuses by adjusting the size of the pupil.

• The eye focuses by moving the eyeball forward and backward.

• The eye focuses by adjusting the shape of the lens through ciliary muscle contraction and relaxation.

• The eye focuses by changing the color of the iris.