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Clin Tech 3 - Unit 5 > Diseases of the Globe > Flashcards

Diseases of the Globe Flashcards

1
Q

Increase in Ocular Pressure causing blindness

A

glaucoma

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2
Q

what pressure or higher indicates glaucoma

A

30

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3
Q

normal pressure range in eyes

A

12-22 mm Hg

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4
Q

two ways to diagnose glaucoma

A

Schiotz tonometer
Tonopen

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5
Q

what are dogs with acute glaucoma sensitive to

A

bright light

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6
Q

acute glaucoma is a true what

A

emergency

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7
Q

why is surgery done for acute glaucoma

A

to decrease aqueous production

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8
Q

typical sign of chronic glaucoma

A

enlarged globe

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9
Q

the removal of the eye from the orbit

A

ennucleation

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10
Q
A

glaucoma

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11
Q

Ulcerative Keratitis

A

corneal ulcers

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12
Q

four layers of the cornea

e________
s________
d________ m________
e__________

A

epithelium
stroma
descemets membrane
endothelium

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13
Q

corneal ulcer is when _______ is lost to expose _______

A

epithelium
stroma

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14
Q

how are corneal ulcers diagnosed

A

fluorescein eye stain

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15
Q

what part of the cornea does the dye stain

A

stroma - not the epithelium

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16
Q

what kind of corneal ulcer:

Epithelium undermined instead of migrating across

A

indolent ulcer

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17
Q

with corneal ulcers, what kind of drugs cause decreased healing with resultant deepening of ulcer and possible corneal rupture

A

corticosteroids

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18
Q

are ointments or solutions preferred for corneal ulcers medication

A

solutions because the dose is more easily controlled - ointments can retard healing

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19
Q

four surgeries that can be done for corneal ulcers

k________
e_____ f______
c________ f_______
c_______ l________

A

keratotomy
eyelid flap
conjunctival flap
contact lenses

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20
Q

deep corneal stromal ulcers that extend to the level of Descemet’s membrane

A

descemetoceles

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21
Q

how is descemetoceles treated

A

surgical placement of a graft

22
Q
A

corneal ulcers

23
Q

Superficial corneal vascularization and granulation tissue

A

chronic superficial keratitis (Pannus)

24
Q

another name for chronic superficial keratitis

25
Q

chronic superficial keratitis (Pannus) is _______ mediated

26
Q

two treatments for chronic superficial keratitis (Pannus)

A

topical Steroid or Cyclosporine

27
Q

what is the cure for chronic superficial keratitis (Pannus)

A

no cure, treat for life

28
Q
A

chronic superficial keratitis (Pannus)

29
Q

another name for Keratoconjunctivitis Sicca

30
Q

three layers of tear film

A

lipid
aqueous
mucous

31
Q

tear film layer from meibomian glands

A

lipid layer

32
Q

tear film layer from lacrimal glands

A

aqueous layer

33
Q

tear film layer from goblet cells

34
Q

where are the bulk of tears formed

A

lacrimal glands

70% orbital gland
30% from nictitans

35
Q

what test is used to diagnosis Keratoconjunctivitis Sicca (dry eye)

A

Schirmer tear test

36
Q

normal Schirmer tear test time

A

15-25 mm/min for dogs

37
Q

treatment for Keratoconjunctivitis Sicca (dry eye)

A

cyclosporine

38
Q

what do you have to warn clients about when using cyclosporine

A

cyclosporine is immunosuppressive - need to wear gloves and people who are immunocompromised need to be cautious!

39
Q

Focal or diffuse opacity within Lens and its capsule

40
Q

how is cataracts differentiated from nuclear sclerosis

A

cataracts will reduce vision, nuclear sclerosis affects depth perception

41
Q

two things that cause noninherited cataracts

A

diabetes
other inflammatory disease

42
Q

treatment for cataracts

A

None specifically for cataracts, but associated inflammation can be treated

43
Q

what is the only effective therapy for cataracts

A

surgical removal of lens (phacoemulsification)

44
Q

a specialized surgery for the treatment of cataracts for companion pets

A

phacoemulsification

45
Q
46
Q

a normal change in aging animal eyes, lens appears grey and opaque

A

nuclear sclerosis

47
Q
A

nuclear sclerosis

48
Q

three parts of the uvea

A

iris
ciliary body
choroid

49
Q

four treatments for anterior uveitis

A

fix underlying cause
topical steroids
antibiotics
pain meds

50
Q

genetic predisposition of retina

A

progressive retinal atrophy

51
Q

what can also develop with progressive retinal atrophy

52
Q

cure for progressive retinal atrophy

Clin Tech 3 - Unit 5 (26 decks)

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