3.04 Eye Structures and Functions

What is the letter D?

• retina

• choroid

• sclera

• Cornea

Tough, outer, white layer; helps maintain shape of the eye. What Layer is this ?

• Sclera

• Choroid

• Retina

Sensitive to dim light?

• Cons

• Rods

This is known as the "blind spot" in your eye

• Iris

• optic disc

• Cornea

• lens

Circular clear area in front center of the sclera; “window of the eye”; is transparent and permits the passage of light rays

• Cornea

• Optic Nerve

• Vitreous Humor

• Cones

What is the letter A?

• Retina

• Optic Disc

• Iris

• Lens

Cones are sensitive to _________ and ___________

• dim light and no color

• bright light and color

• images and muscles

• tears and color

True or False.

The pathway of vision starts at the Cornea.

• True

• False

What Eye Disorder has Excessive intraocular pressure causing destruction of the retina and atrophy of the optic nerve

• Diabetic Retinopathy

• Glaucoma

• Cataract

• Astigmatism

Movable folds of skin that protect the eye ?

• orbital cavity

• eyelashes

• eyelids

• lacrimal gland