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Opthalomology > Feline Opthalmology > Flashcards

Feline Opthalmology Flashcards

1
Q

What condition does exopthalmos commonly cause in cats?

A

Exposure keratitis

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2
Q

At what age do cat’s eyelids open?

A

10-14 days of age

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3
Q

In which population of cats is entropion most likely to occur?

A

Older cats or entire toms.

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4
Q

What is the normal range for the Schimer Tear Test in cats?

A

9-34mm/min

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5
Q

What is the normal range for TBUT in cats?

A

9-18 seconds

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6
Q

List three causes of dry eye in cats

A

Iatrogenic
Sequel of chronic blepharoconjunctivitis
Associated with FHV-1
(NOT immune mediated in cats)

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7
Q

What are the four main clinical signs of conjunctivitis in cats?

A

Conjunctival hyperemia
Chemosis
Epiphora
Blepharospasm

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8
Q

List three primary infectious causes on conjunctivitis in cats

A

FHV-1
Chlamydia felis
Mycoplasma felis

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9
Q

How would you treat chlamydia felis?

A

Doxycycline 5mg/kg SID for at LEAST 4 weeks

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10
Q

How does corneal sequestrum occur?

A

Initiall brown ‘tea stain’ in cornea, it becomes black corneal plaque with vascularisation, granulation and pain. It is necrotic corneal cells.

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11
Q

What causes stromal keratitis?

A

Immune mediated inflammatory reaction.

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12
Q

What oral and topical treatments are available for herpatic keratoconjunctivitis?

A

Oral - famcyclovir
Topical - trifluorothymidine, gancyclovir

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13
Q

How would you treat eosinophilic keratitis in cats?

A

Topical steroids - 4-6x/day
Taper over a 6-8wk period or will recurr.
+/- cyclosporin

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14
Q

What is the most common primary intraocular tumour in cats?

A

Feline diffuse iris melanoma

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15
Q

What are the treatments for feline diffuse iris melanoma?

A

Laser therapy.
Enucleation and histopathology.

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16
Q

List 6 signs of malignancy for feline ocular neoplasia.

A

Dark black pigmentation.
Mass elevated from iris surface.
Change in iris structure.
Dyscoria (abrnomal pupil shape)
Free pigmented cells in anterior chamber.
Increase IOP, invasion drainage angle

17
Q

Define anterior uveitis

A

Inflammation of the iris and ciliary body

18
Q

Define posterior uveitis

A

Inflammation of the choroids

19
Q

Define panuveitis

A

Inflammation of the whole uvea - iris, ciliary body and choroid

20
Q

Define endophthalmitis

A

Inflammation involoving the ocular cavities and adjacent structures

21
Q

Define panophthalmitis

A

Inflammation involivng all tunics of the eye

22
Q

List 5 causes of anterior uveitis

A

Lymphoplasmocytic
FIP/FCoV
FeLV-associated lymphosarcoma
Trauma
Lens induced

Opthalomology (11 decks)

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