KS3 The eye (and pinhole camera) Revision Monkey

What is the function of the cornea in the eye?

• It protects the eye.

• It controls the size of the pupil.

• It carries impulses to the brain.

• It bends light into the eye.

What part of the eye contains muscles that control the size of the pupil?

• Cornea

• Retina

• Lens

• Iris

What happens to the pupil in a dim environment?

• It closes completely.

• It stays the same size.

• It becomes larger.

• It becomes smaller.

What is the role of the lens in the eye?

• To transmit light

• To focus light on the retina

• To protect the eye

• To control pupil size

What helps control the shape of the lens?

• Cornea

• Sclera

• Ciliary muscles and suspensory ligaments

• Optic nerve

Where is the image formed in the eye?

• Sclera

• Retina

• Iris

• Cornea

What does the optic nerve do?

• It bends light into the eye.

• It carries impulses from the retina to the brain.

• It controls the size of the pupil.

• It protects the eye.

What is the function of the sclera?

• To transmit light

• To focus light on the retina

• To control the shape of the lens

• To protect the eye

What type of lens is found in the eye?

• Concave lens

• Convex lens

• Flat lens

• Bifocal lens

What happens to light as it enters the lens of the eye?

• It is absorbed.

• It is reflected.

• It is refracted.

• It is scattered.