Misc. Ocular Diseases Flashcards Preview

Ophthalmology > Misc. Ocular Diseases > Flashcards

Flashcards in Misc. Ocular Diseases Deck (86)
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1

What is chorioretinitis?

Inflammation of the choroid and retina (sometimes interchangeable w/posterior uveitis)

2

How does the fundus change with chorioretinitis?

Poorly defined gray spots

3

How is the retina affected by acute chorioretinitis?

Retinal hemorrhage and separation

4

What is a sign of chronic chorioretinitis?

Hyperreflectivity

5

What is anisocoria?

One dilated + one constricted pupil

6

What causes anisocoria?

Head trauma

7

What is the most common cause of proptosis?

Trauma

8

Which breeds are most commonly affected by proptosis?

Brachycephalics

9

How do you treat proptosis?

Replace globe + temp. tarsorrhaphy

10

What is proptosis?

Entrapment of the eyelids behind the equator of the globe

11

What is nuclear sclerosis?

Normal aging change to the center of the lens

12

What structure is affected by nuclear sclerosis?

Lens

13

In which breeds is lens luxation common?

Terriers

14

How can a lens luxation cause glaucoma?

Can mechanically obstruct aqueous outflow

15

Which direction of lens luxation warrants immediate lens removal and why?

Anterior luxations cause discomfort, uveitis, and glaucoma

16

What is ectropion?

Eyelid margin everts outward

17

This eyelid malformation can lead to exposure keratitis but is very uncommon in horses

Ectropion

18

What is entropion?

Eyelid margin inverts inward

19

What results from intropion?

Conjunctivitis, keratitis, blepharospasm, epihora

20

Which eyelid malformation is fairly common in foals and other young animals?

Entropion

21

If you have a very young dog with entropion, how do you treat it?

None, usually resolves on its own as it grows

22

How do you treat entropion in older animals/non-resolving cases?

Evert lid and staple or surgical correction (rarely needed)

23

What eye irregularity presents systemically ill with an acutely painful eye that can be retropulsed with minimal resistance?

Retrobulbar abscess

24

What systemic signs will accompany a retrobulbar abscess?

Fever, leukocytosis, anorexia

25

What systemic signs will accompany a retrobulbar abscess?

Fever, leukocytosis, anorexia

26

What is a cherry eye?

Prolapse of the 3rd eyelid

27

How do you treat a cherry eye?

Gland replacement

28

What techniques are used to replace a 3rd eyelid prolapse?

Morgan pocket or Kaswan anchoring techniques

29

What does removal of the 3rd eyelid put the animal at increased risk for?

KCS

30

What does removal of the 3rd eyelid put the animal at increased risk for?

KCS