Eye Pathology I - Adnexal Structures Flashcards by Zhenzhen George

Q

A

Micropalpebral fissure

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Q

Causes of micropalpebral fissures (3)

A

Congenital - small eye
Iatrogenic
Infectious - feline herpes virus - conjunctivitis, eye disease in cats

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Q

Causes of macropalpebral fissures (2)

A

Congenital
Infectious (in rabbits and fowl) - inflammation pulls eyelids away from cornea

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Q

Adnexal structures of the eye (3)

A

Eyelids
Nictitating membrane (third eyelid)
Lacrimal + accessory glands

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Q

A

Macropalpebral fissure

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Q

A

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

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Q

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

A

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Q

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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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Q

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

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Q

A

Blepharitis

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Q

What is blepharitis and its causes? (4)

A

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Q

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

A

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Q

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

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Q

A

Puppy strangles - blepharitis

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Q

How does the third eyelid become prolapsed?

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A

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

Q

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Prolapsed third eyelid - pathognomic appearance

Q

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Q

What are the clinical signs of conjunctivitis? (4)

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Q

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

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A

Q

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

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Q

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Feline conjunctivitis - Chlamydophila (chlamydia) felis

Q

Common causes of feline conjunctivitis (3)

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Q

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

Infectious bovine keratoconjunctivitis (IBK)

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

Moraxella bovis - gram-negative coccobacillus

Immune-mediated keratoconjunctivitis sicca (KCS) = dry eye

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

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

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

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

Retained spectacles

What are retained spectacles? (3)

Watery discharge in eye summary

Muco(purulent) discharge in eye

Ocular discharge in cat (unilateral/bilateral) summary