2012 Flashcards
(84 cards)
The nasolacrimal duct drains through the \_\_\_\_\_\_\_\_\_ at the inferior turbinate a. Inferior meatus b. Cannaliculus c. Punctum d. Plica semilunaris e. Maxillary bone
A
Part of the medial wall of the orbit EXCEPT
a. Lacrimal bone
b. Ethmoid bone
c. Maxillary bone
d. Frontal bone
e. Palatine bone
E
Thinnest bone of the orbit
a. Ethmoid bone
b. Lacrimal bone
c. Palatine bone
d. Frontal bone
e. Maxillary bone
A
Which of the following structures accounts for the
highest refractive component of the human eye?
a. Lens
b. Cornea
c. Vitreous
d. Aqueous
B
In myopic individuals, what does a diverging lens
do to the image in relation to the retina?
a. Pulls it forward
b. Pushes it back
c. It does nothing
B
In myopic individuals, what does a converging lens
do to the image in relation to the retina?
a. Pulls it forward
b. Pushes it back
c. It does nothing
A
In hyperopic individuals, what does a diverging
lens do to the image in relation to the retina?
a. Pulls it forward
b. Pushes it back
c. It does nothing
B
In hyperopic individuals, what does a converging
lens do to the image in relation to the retina?
a. Pulls it forward
b. Pushes it back
c. It does nothing
A
What type of astigmatism has the image in front of
the retina and the other image behind the retina?
a. Simple myopic
b. Simple hyperopic
c. Compound myopic
d. Compound hyperopic
e. Mixed astigmatism
E
What type of astigmatism has both images behind the retina? a. Simple myopic b. Simple hyperopic c. Compound myopic d. Compound hyperopic e. Mixed astigmatism
D
What type of astigmatism has both images in front of the retina? a. Simple myopic b. Simple hyperopic c. Compound myopic d. Compound hyperopic e. Mixed astigmatism
C
The following are components of the accommodative/ near reflex triad EXCEPT a. Lens thickening b. Miosis c. Stereopsis d. Convergence
C
In the pathway for the photochemistry of vision,
cis-retinene and opsin combine to from which
molecule?
a. Rhodopsin
b. Metarhodopsin
c. Lumirhodopsin
d. Trans-retinene
A
Which of the following is NOT used to correct ammetropia? a. Contact lenses b. Spectacles c. Corneal transplantation d. Cataract surgery e. Laser refractive surgery
C
Which condition is described as having total loss of red color? a. Protanope b. Protanomaly c. Deuteranope d. Deuteranomaly
A
A lesion of the optic chiasm would most likely present
with which kind of visual field defect?
a. Bilateral hemianopia
b. Left homonymous hemianopia
c. Bitemporal hemianopia
d. Left superior homonymous hemianopia
C
A lesion in which of the following structures would
most like give rise to a left homonymous hemianopia?
a. Left occipital lobe
b. Right occipital lobe
c. Left frontal lobe
d. Optic chiasm
B
Where is the lesion if there is right homonymous hemianopia w/o macular sparing? a. Left occipital lobe b. Left parietal lobe c. Left optic tract d. Optic chiasm
C
Differential diagnosis for acute onset blurring of vision
associated with eye pain and redness include the
following, EXCEPT
a. Central retinal artery occlusion
b. Keratitis
c. Anterior uveitis
d. Angle closure glaucoma
A
A patient complains of sudden episode of transient
blurring of vision which last from several seconds to a
minute. Which of the following conditions can account
for this symptom?
a. Error of refraction
b. Retinal detachment
c. Migraine
d. Amaurosis fugax
D
Both near vision and distance vision are usually
affected in the following conditions, EXCEPT
a. Glaucoma
b. Cataract
c. Presbyopia
d. Retinal detachment
C
Which of the following associations is correct?
a. Serous discharge: allergic conjunctivitis
b. Mucoid discharge: bacterial conjunctivitis
c. Purulent discharge: gonoccocal conjunctivitis
d. Mucopurulent discharge: viral conjunctivitis
C
A patient complains of sudden onset deterioration
in vision in one eye associated with eye redness and
severe eye pain. There was absence of discharge or
itchiness. The patient had one episode of vomiting and
claims to be nauseated. You suspect:
a. Acute uveitis
b. Optic neuritis
c. Acute glaucoma
d. Endophthalmos
C
Type of eye redness that requires immediate referral to an ophthalmologist is a. Conjunctival hyperemia b. Perilimbal flush c. Scleral congestion d. Subconjunctival hemorrhage
B