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Flashcards in KCS Deck (43)
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1

Why is surgical removal of the 3rd eyelid for reasons other than neoplasia contraindicated?

Results in long term KCS

2

What is a salvage procedure for the treatment of KCS?

Parotid duct transposition

3

Where is the parotid duct moved from in a parotid duct transposition?

From buccal mucosa to lower conjunctival fornix

4

How do you dx KCS?

Low Schirmer tear test readings

5

What is normal Schirmer tear test readings in dogs and cats?

15mm/min

6

What is the main cause of infectious bovine keratoconjunctivitis?

Moraxella bovis

7

What is the vector of Moraxella bovis?

Face fly

8

What are the common names of infectious bovine keratoconjunctivitis?

"Pink eye" or "New Forest Eye"

9

Immune mediated infiltration of the conjunctiva and cornea with eosinophils and other WBCs is called what?

Eosinophilic keratoconjunctivitis

10

In which species does eosinophilic keratoconjunctivitis occr?

Cats, horses, rabbits

11

In which species does eosinophilic keratoconjunctivitis occr?

Cats, horses, rabbits

12

Why does removal of the 3rd eyelid cause KCS?

3rd eyelid gland contributes significantly to tear production

13

Does KCS result from anterior uveitis?

No (cannot extend to lacrimal gland)

14

What is KCS an abnormality of?

Lacrimal gland and 3rd eyelid gland

15

What is the pathophysiology of KCS?

Decrease in aqueous portion of tear film

16

What are clinical signs of KCS?

Thick ocular mucoid discharge, bilateral blepharospasm, 360* corneal vascularization

17

How do you treat KCS?

Cyclosporine and topical steroids

18

How does cyclosporine treat KCS?

Reverses immune mediated process and stimulates tear production

19

How does topical steroids help treat KCS?

Reduces immune destruction of lacrimal gland

20

What is the most common cause of KCS in dogs and cats?

Immune-mediated adenitis (75% of cases)

21

What drugs can cause KCS in dogs?

TMPS, atropine, general anesthetics

22

Which viral infection can cause KCS in dogs?

Distemper

23

What are clinical signs of IBK?

Blepharospasm, chemosis, photophobia, pain

24

Why is KCS exacerbated with CN 7 (facial nerve) paralysis?

Lack of blink reflex

25

What type of bacteria is Moraxella bovis?

Gram neg bacillus

26

What causes infectious keratoconjunctivitis in sheep and goats?

Chlamydophilia spp. and Mycoplasma spp.

27

How do you treat infectious keratoconjunctivitis in sheep and goats?

Oxytetracycline IM/topically

28

What is the most common cause of feline conjunctivitis and feline keratitis?

Feline herpesvirus

29

What causes quantitative KCS?

Aqueous deficiency

30

Which tear film layer is the thickest?

Aqueous (middle)