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Pathology & Diseases > Diseases of the eye > Flashcards

Diseases of the eye Flashcards

1
Q

The most highly developed of all specialty senses

A

Eye

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2
Q

Diseases of the eye are divided into 3 categories

A

1.Diseases involving accessory structures
2. Diseases involving structures within the globe
3.Diseases that involve the retina and neural pathways

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3
Q

Diseases involving accessory structures

A

Conjunctivitis, Epiphora, Keratoconjunctivitis sick (KCS), Cherry eye

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4
Q

What are the accessory structures of the eye

A

Eyelids, tear ducts, third eyelid, lacrimal glands

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5
Q

Conjunctivitis in dogs is typically

A

Non-infectious

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6
Q

Conjunctivitis of cats is typically

A

infectious

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7
Q

Epiphora

A

over production of tears

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8
Q

Keratoconjunctivitis sick (KCS) commonly referred to as

A

Dry eye

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9
Q

Any condition that impairs the ability to produce adequate amounts of tear film can result in

A

Dry eye

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10
Q

KCS causes

A

immune mediated disease that damage tear producing glands, systemic diseases like canine distemper or feline herpes, hypothyroidism

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11
Q

Normal STT is

A

20 +/-5

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12
Q

With KCS there is often

A

thick yellowish mucoid discharge present

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13
Q

Blepharitis

A

inflammation/swelling of the eyelids

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14
Q

Hordeolum

A

Access of sebaceous gland

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15
Q

Entropion

A

defect involving the eyelids causing them to roll in toward the cornea

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16
Q

Ectropion

A

defect involving the eyelids causing them to roll outward exposing the cornea

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17
Q

3 forms of entropion

A

1.Congenital 2.Acquired non-spastic
3.Acquired spastic

18
Q

What is cherry eye

A

Prolapse/hypertrophy/ inflammation of the gland of the nictitating membrane

19
Q

it is considered __ to remove a cherry eye

A

malpractice

20
Q

Diseases involving the structures within the globe

A

Corneal ulcers, cataracts, glaucoma, uveitis, trauma

21
Q

Glaucoma is

A

increased pressure within the eye

22
Q

Normal IOP is

A

20 +/-5

23
Q

How does glaucoma effect the eye

A

Pain due to IOP (increased ocular pressure) and vision loss

24
Q

Primary glaucoma is

A

inherited

25
Q

Secondary glaucoma

A

occurs when other eye diseases cause decreased drainage of fluid from inside the eye

26
Q

__ development of IOP>60 mm Hg can produce blindness within hours

A

Acute

27
Q

Tonometry is

A

measurement of IOP

28
Q

Main client education for glaucoma

A

A progressive condition that will require life-long treatment

29
Q

Ulcerative keratitis aka

A

corneal ulcers

30
Q

One of the most common cause of ocular disease in horse

A

corneal ulcers

31
Q

Why should you not give steroids for ulcerative keratitis?

A

steroids will slow the healing process and may make the ulcer worse

32
Q

Chronic superficial keratitis aka

A

Pannus

33
Q

Pannus is

A

an immune mediated corneal disease primarily found in the German shepherd breed

34
Q

What is a cataract

A

any opacity within a lens

35
Q

Secondary disease of cataracts in dogs

A

Diabetes mellitus, hypocalcemia, other ocular diseases, toxicity

36
Q

Secondary diseases for cataracts in cats (rare)

A

FeLV, Toxoplasmosis

37
Q

Uveitis is almost always a

A

Systemic disease

38
Q

Clinical signs of Anterior Uveitis

A

decreased IOP, epiphora, episcleral injection, prolapsed 3rd eyelid

39
Q

Recurrent uveitis aka

A

Moon blindness

40
Q

Diseases involving the retina and neural pathway

A

Progressive retinal atrophy

41
Q

Clinical signs of Progressive Retinal Atrophy (PRA)

A

loss of night vision w/ slowly progressive loss of day vision and formation of cataracts

42
Q

Diagnosis of PRA is full ophthalmic exam and ERG which is

A

electroretinography which measures the electrical responses of various cell types in the retina

Pathology & Diseases (6 decks)

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