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Ophthalmology > Unit 2 - Quizzes > Flashcards

Unit 2 - Quizzes Flashcards

1
Q

Which of these statements is true regarding fundic exam abnormalities?

A. As the tapetum lies under the retina, a hyperreflective lesion is due to retinal atrophy

B. As the tapetum lies within the choroid, a hyperreflective lesion is due to choroidal atrophy

C. As the tapetum lies within the choroid, a hyporeflective lesion is due to choroidal atrophy

D. As the tapetum lies over the retina, a hyperreflective lesion is due to retinal atrophy

A

A. As the tapetum lies under the retina, a hyperreflective lesion is due to retinal atrophy

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2
Q

Differentials for retinal haemorrhages include (select all that apply)

A. Enrofloxacin toxicity

B. Systemic hypertension

C. Glaucoma

D. Vasculitis

E. Feline herpesvirus-1 infection

A

B. Systemic hypertension

D. Vasculitis

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3
Q

Identify the correct species and retinal vasculature pairings below:

A. Paurangiotic and horse, merangiotic and avian, holangiotic and canine

B. Holangiotic and canine, holangiotic and equine, merangiotic and rabbit

C. Holangiotic and cat, paurangiotic and horse, merangiotic and rabbit

D. Anangiotic and avian, paurangiotic and rabbit, merangiotic and horse

A

C. Holangiotic and cat, paurangiotic and horse, merangiotic and rabbit

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4
Q

Which of the following is not a common sign of anterior uveitis?

A. Miosis

B. Aqueous flare

C. Low tear production

D. Corneal edema

E. Episcleral blood vessel injection

A

C. Low tear production

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5
Q

Which part of the uvea suspends the lens behind the pupil with zonular fibers?

A. Tapetum

B. Persistent pupillary membranes

C. Iris

D. Ciliary body

E. Choroid

A

D. Ciliary body

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6
Q

T/F:

Ocular lymphosarcoma is usually primary and limited only to the eye

A

False

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7
Q

What drug is used to dilate the eye during a clinical exam in order to perform a thorough evaluation of the lens and posterior segment?

A. fluorescein

B. tetracaine

C. proparacaine

D. tropicamide

E. atropine

A

D. tropicamide

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8
Q

A female spayed 10 year old miniature poodle presents to you for cataract evaluation and blindness. The owners have noticed a grayish color inside the eyes as well as her bumping into things since they moved to their new house last month. Your examination reveals absent menace responses, normal IOP (15 mm Hg), dilated pupils with very weak and incomplete PLRs, a slight gray haze of the central lens but otherwise normal and unimpaired retroillumination, and on fundoscopy dark, dull optic nerve heads, severe tapetal hyper-reflectivity and absent retinal blood vessels were observed OU. What is the cause of the dog’s blindness? (Hint: you may want to use a textbook or other online educational resource if you don’t know how to interpret the fundic exam findings)

A. Asteroid hyalosis

B. Complete cataracts

C. Nuclear sclerosis

D. Severe retinal degeneration

A

D. Severe retinal degeneration

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9
Q

Which of the following is an ophthalmic emergency?

A. anterior lens luxation

B. cataract

C. buphthalmos and lens subluxation

D. lens luxation

A

A. anterior lens luxation

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10
Q

A 6 year-old Jack Russell Terrier dog presents for an acutely red, painful eye, and you use a TonoVet to identify an intraocular pressure of 60 mmHg.

Which of the following conditions on your ocular and physical examination should dissuade you from immediately instilling latanoprost?

A,Blepharospasm

B. Corneal edema

C. Episcleral vessel congestion

D. Bradycardia

E. Anterior lens luxation

A

E. Anterior lens luxation

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11
Q

T/F: Carbonic anhydrase enzyme is key in aqueous humor dynamics. Inhibition of this enzyme results in lower intraocular pressure by increasing aqueous humor outflow.

A

False

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12
Q

Surgical therapy of glaucoma - please choose the correct combination [Surgery] ==> [Indication]

A. Evisceration ==> Salvage procedure in non-visual eye

B. Gonioimplant ==> Decrease aqueous humor production in visual eye

C. Trans-scleral cyclophotocoagulation ==> Increase aqueous humor outflow in visual eye

D. Chemical ablation of ciliary body ==> Decrease aqueous humor production in visual eye

A

A. Evisceration ==> Salvage procedure in non-visual eye

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13
Q

Which of the following topical antiviral medication is generally preferred in cats (due to lower frequency of administration) ?

A. Trifluridine

B. Vidarabine

C. Idoxuridine

D. Cidofovir

A

D. Cidofovir

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14
Q

True/False - When removing the eye of a cat (enucleation), it is recommended to clamp the optic nerve as it will help reduce intraoperative hemorrhage.

A

False

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15
Q

What is the ONLY indication for performing a third eyelid flap in a cat?

A. Descemetocele

B. Corneal foreign body

C. Acute bullous keratopathy

D. Deep infected corneal ulcer

A

C. Acute bullous keratopathy

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16
Q

T/F: Fluorescein staining should be performed on every horse presenting with an ophthlamic complaint

A

True

17
Q

What type of retina does a horse have?

A. anangiotic

B. paurangiotic

C. holangiotic

D. merangiotic

A

B. paurangiotic

18
Q

T/F: You can immediately stop treating a horse for uveitis as soon as the clinical signs resolve

A

False

19
Q

What is a side effect of latanoprost use that can create a serious problem in an eye with anterior lens luxation?

A. conjunctival hyperemia

B. eyelash hyperpigmentation

C. miosis

D. hypotony

A

C. miosis

20
Q

Topical cyclosporine is indicated for all of the following conditions EXCEPT:

A. eosinophilic keratitis

B. melting corneal ulcer

C. keratoconjunctivitis sicca

D. chronic superficial keratitis

A

B. melting corneal ulcer

21
Q

Which of the following are safe systemic treatments for a cat? (choose all that apply)

A. enrofloxacin 30 mg/kg PO SID

B. valacyclovir 500 mg PO BID

C. doxycycline 10 mg/kg PO SID (followed by food or water bolus)

D. famcyclovir 500 mg PO BID

A

C. doxycycline 10 mg/kg PO SID (followed by food or water bolus)

D. famcyclovir 500 mg PO BID

Ophthalmology (13 decks)

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