Eye Pathology I - Adnexal Structures Flashcards

1
Q
A

Micropalpebral fissure

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2
Q

Causes of micropalpebral fissures (3)

A
  • Congenital - small eye
  • Iatrogenic
  • Infectious - feline herpes virus - conjunctivitis, eye disease in cats
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3
Q

Causes of macropalpebral fissures (2)

A
  • Congenital
  • Infectious (in rabbits and fowl) - inflammation pulls eyelids away from cornea
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4
Q

Adnexal structures of the eye (3)

A
  • Eyelids
  • Nictitating membrane (third eyelid)
  • Lacrimal + accessory glands
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5
Q
A

Macropalpebral fissure

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6
Q
A

Entropion - external aspect of lower eyelid margin rolling inwards + rubbing cornea -> trauma

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7
Q

What is entropion / ectropion and what are the causes? (9)

A
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8
Q
A

Nasal fold trichiasis - eyelashes grow inwards toward the eye + rub against the cornea, the conjunctiva, and the inner surface of the eyelid

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9
Q
A
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10
Q

What is distichia, ectopic cilia, trichiasis and trichomegaly? (4)

A
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11
Q
A

Blepharitis

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12
Q

What is blepharitis and its causes? (4)

A
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13
Q

What is chalazion/meibomianitis and a sty? (Local blepharitis) (4)

A
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14
Q

What are the types of general blepharitis and what are the causes? (6)

A
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15
Q
A

Puppy strangles - blepharitis

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16
Q

How does the third eyelid become prolapsed?

A

Due to loosening of / congenital laxity in connective tissue anchoring the nictitans gland to the cartilage of the third eyelid - gland moves

17
Q
A

Prolapsed third eyelid - pathognomic appearance

18
Q
A
19
Q

What are the clinical signs of conjunctivitis? (4)

A
20
Q

What are the causes of conjunctivitis - infectious and non-infectious? (6)

A
21
Q

Common causes of canine conjunctivitis - infectious and non-infectious (7)

A
22
Q
A

Feline conjunctivitis - Chlamydophila (chlamydia) felis

23
Q

Common causes of feline conjunctivitis (3)

A
24
Q
A
25
Q

What is feline herpesvirus (FHV-1) - what does it cause, carriers, lesions (4)

A
26
Q
A

Infectious bovine keratoconjunctivitis (IBK)

27
Q

What is infectious bovine keratoconjunctivitis (IBK) caused by? (4)

A

Moraxella bovis - gram-negative coccobacillus

28
Q
A

Immune-mediated keratoconjunctivitis sicca (KCS) = dry eye

29
Q

What is immune-mediated keratoconjunctivitis sicca (KCS)? (3)

A
30
Q

How does immune-mediated keratoconjunctivitis sicca (KCS) appear grossly? - what are the clinical signs - what would you see?

A
31
Q

What test is used to diagnose immune-mediated keratoconjunctivitis sicca (KCS) / for dogs with mucky/red eye?

A
32
Q

What are the causes of immune-mediated keratoconjunctivitis sicca (KCS) / dry eye? (8)

A
33
Q
A

Retained spectacles

34
Q

What are retained spectacles? (3)

A
35
Q

Watery discharge in eye summary

A
36
Q

Muco(purulent) discharge in eye

A
37
Q

Ocular discharge in cat (unilateral/bilateral) summary

A