Anatomy of the Eye

What is the function of the eyelids?

• Protect the eyes from foreign objects.

• Prevent the entry of excess light.

• Lubricate the surface of the eye.

• All of the above.

What is the role of the lacrimal apparatus?

• Produces tears.

• Drains tears.

• Both A and B.

• None of the above.

What are the layers of the eyeball?

• Fibrous tunic

• Vascular tunic

• Retina

• All of the above

What is the function of the iris?

• Regulates the amount of light entering the eye.

• Protects the eye from foreign objects.

• Focuses light on the retina.

• None of the above.

What are the two types of photoreceptors in the retina?

• Rods and Cones

• Rods and Sclera

• Cones and Iris

• None of the above

What is the function of the macula?

• Helps in seeing details of objects.

• Regulates light entry.

• Protects the eye.

• None of the above.

What is the function of the cornea in the eye?

• Admits & retracts (bends) light.

• Provides shape & protects inner parts

• Regulates the amount of light that enters eyeball

• Provides blood supply & absorbs scattered light

What is the role of the retina?

• Receives light & converts it into nerve impulses.

• Refracts light

• Contains aqueous humor that helps maintain the shape of the eyeball.

• Contains the vitreous body, which helps maintain the shape of eyeball.

What happens during the process of accommodation?

• Ciliary muscle contracts to focus on near objects.

• Ciliary muscle relaxes to focus on distant objects.

• Both A and B

• None of the above

What is myopia?

• Nearsightedness: can see near but not far objects

• Farsightedness: can see far but not near

• Normal vision

• None of the above