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- 1. Open Ended
Name the 3 layers of the eyeball.
- 2. Drag and Drop
The average human eye can see around (a) different shades of color and has a resolution that equals (b) gigapixels.
100576125620010807287 - 3. Multiple Choice
The posterior pole of the eyeball is connected with the __________, which conveys the information from the retina to the brain.
optic nerve (CN II)
oculomotor nerve (CN III)
olfactory nerve (CN I)
ear canal
- 4. Multiple Choice
The _________ layer of the eyeball consists of the sclera and cornea.
fibrous
vascular
nervous
dermal
- 5. Multiple Choice
The ______ layer, also known as the uvea or uveal tract, consists of the choroid, ciliary body, and iris.
fibrous
vascular
nervous
dermal
- 6. Multiple Choice
The _________ layer, which is the innermost layer of the eyeball, is also known as the retina.
fibrous
vascular
nervous
dermal
- 7. Drag and Drop
The inside of the eye contains the two refractive structures of the eye called the (a) and (b) .
lensvitreous bodycorneascleraoptic nerveaqueous humorTenon's capsule - 8. Open Ended
What is the function of Tenon's capsule?
- 9. Multiple Choice
True or false: The cornea is a completely avascular structure, meaning that it doesn’t receive arterial blood supply.
True
False
- 10. Open Ended
What is the main function of the cornea?
- 11. Multiple Choice
What is the function of the iris?
Transmits electrical signals to the visual cortex of the brain
controls the size of the pupil through the actions of the sphincter and dilator pupillae muscles
Controls lateral eye movements
Regulates tear production
- 12. Multiple Choice
dilation of the pupil
miosismyopiamydriasismyocarditis - 13. Multiple Choice
contraction of the pupil
macular degenerationmiosismyopiahyperopia - 14. Multiple Choice
The site where images of the environment are converted to the neural impulses that are transmitted to the brain via optic nerve for interpretation and analysis.
retina
cornea
iris
choroid
ciliary body
- 15. Multiple Choice
The _________, located on the retina, doesn’t contain any photoreceptor cells, which is why it’s also known as the 'blind spot' of the eye.
optic disc
fovea centralis
ciliary body
macula lutea
pupil
- 16. Open Ended
List the 6 types of cells found in the retina.
- 17. Multiple Choice
True or false: the lens can change its dioptric power by changing its shape, making its refractive power flexible, unlike any other refractory medium of the eye.
true
false
- 18. Multiple Choice
nutrient-rich fluid that fills the anterior and posterior chambers of the eye
aqueous humor
cornea
choroid
retina
lens
- 19. Multiple Choice
This condition may occur if there is an abnormal increase in the pressure of cerebrospinal fluid (CSF) flow in the extension of the subarachnoid space around the optic nerve.
papilledema
glaucoma
cataract
presbyopia
- 20. Multiple Choice
a condition of increased pressure within the eyeball, which results in gradual loss of sight.
papilledema
glaucoma
cataract
presbyopia
- 21. Multiple Choice
a medical emergency in which layer of retinal tissue peels off from the underlying supporting tissue.
retinal detachment
presbyopia
astigmatism
Horner syndrome
hyphemia
- 22. Multiple Choice
condition in which there is hemorrhage within the anterior chamber of the eyeball; usually results from blunt trauma to the eyeball
retinal detachment
presbyopia
astigmatism
Horner syndrome
hyphemia
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