Quiz - Eye Anatomy

What is your name?

Molly's blindness was caused by:

• injury during birth
• a recessive gene
• exposure to UV light
• a car accident

Humans and dogs most likely have visible sclera for what reason?

• defense against predation
• protection from UV light
• communication
• seeing in the dark

Which part of the eye is an opening for light to enter; the size of that opening is controlled by the iris?

• optic nerve
• ciliary body
• fovea centralis
• pupil

Which part of the eye controls changing the shape of the lens to focus the eye on close or distant objects?

• ciliary body and zonules
• iris
• aqueous humor
• fovea centralis

If fluid pressure remains high within the eye, the person might be diagnosed with:

• anaridia
• glaucoma
• cataracts
• leber ameurosis

In humans, this part of the eye can range in color from brown to blue:

• retina
• tapetum
• cornea
• iris

Accommodation refers to ability of the eye to:

• detect light and dark
• focus on near and far objects
• project images into the brain
• repair damaged photoreceptors

The sharpest area of focus on the retina is the:

• optic disk
• vitreous humor
• ciliary body
• fovea centralis

What causes humans to have a blind spot?

• the thickness of the vitreous humor
• the location of the pupil
• the attachment of the optic nerve
• the vessels of the choroid