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Opthalmology2 > Eyelids > Flashcards

Eyelids Flashcards

1
Q

Facial nerve (VII) innervates?

A

blinking mostly

  • orbicularis oculi
  • superciliaris/corrugator supercilii
  • retractor anguli oculi
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2
Q

Trigeminal nerve (V) innervates?

A

feeling mostly…

- ophthalmic for upper and maxillary for lower

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3
Q

Oculomotor nerve (III) innervates?

A

levator Palpebrae superioris

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4
Q

Eyelid glands?

A

Meibomian (secretion is oily and forms the outer layer of the precorneal tear film) ! all we care about
30-40 in each lid

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5
Q

Eyelid Agenesis

A

loss of skin around eye
a small defect may be ok, not need treatment
-most commonly seen in cats, Persians

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6
Q

Neonatal Ophthalmia

A

Newborn puppies are susceptible to eye infection especially around 2 weeks of age.
-happens with ankyloblepharon (eyelids are closed together) so eyelid needs to be opened + antibiotics

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7
Q

Blepharophimosis

A

narrow palpebral fissure. (usually incidental may be contributing factor in entropion)

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8
Q

Macroblepharon

A

enlarged palpebral fissure (‘Bug Eyes’)
brachycephalic problem usually
-fix with medial canthoplasty

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9
Q

Lagophthalmos

A

when the eyelids can’t completely close over

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10
Q

distichiasis

treatment?

A

cilia emerge from meibomian gland and cause irritation (most common form of eyelash dz)
tx- cryotherapy (only those causing problem need to be corrected)

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11
Q

ectopic cilium

A

cilia arise from meibomian gland but emerge through the conjunctiva
-usually near center upper lid

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12
Q

trichiasis

A

cilia that grow towards the cornea due to altered facial or eyelid conformation

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13
Q

Entropion

  • presenting signs?
  • 3 types?
A

rolling in of the eyelid

  • TE visible (owner claims globe is rolled back)
  • types: congenital, spastic, cicatricial
  • eyelid tacking and/or eyelid resection can be recommended
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14
Q

ectropion

  • 3 types?
  • treatment?
  • common breeds?
A

rolling out of the eyelid

  • congenital, cicatricial, paralytic
  • V to Y or just wedge removal (only if causing corneal disease or excessive ocular discharge)
  • blood hound/basset hound
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15
Q

types of blepharitis

and their treatments?

A
  • juvenile pyoderma (SYST abx and antiinflammatories)
  • demodex
  • hordoleum/stye (infection of gland)
  • bee sting
  • UDAS
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16
Q

eyelid tumors

A
  • dermoid (not neoplastic)
  • **meibomian gland adenoma **most common; almost always benign (debulk and freeze)
  • papilloma
  • melanoma (often benign)
  • histiocytoma (usually regress spontaneously)
  • mast cell tumor
  • squamous cell carcinoma (cattle > horse > white cat)
  • horses - sarcoids
17
Q

take out the third eyelid?

A

NO predisposes to KCS!

18
Q

surgical techniques to replace third eyelid?

A

pocket, orbital rim

19
Q

theres a bunch more weirdo things at the end but I dont think theyre important enough, give syst. abx, remove cancer etc.

A

yea

20
Q

3 functions of the eyelid

A

protect globe, tear distribution, tear removal

21
Q

ectopic cilia treatment

A

surgical correction by partial thickness excision and/ or cryoablation

22
Q

lacerations

A
  • clean but debridement should be minimal
  • if really fresh, apply bandage for 12-24hrs
  • suture in 2 layers
23
Q

what is the most common cause for bacterial Blepharitis ?

A

staph aureus

24
Q

chalazion

A

granulomatous rxn in meibomian gland, needs sx excision

25
Q

eyelid neoplasia : how much to take off?

A

full thickness indicated when lesion is less than 1/4 to 1/3 of eyelid; cryotherapy is often effective with most eyelid masses

26
Q

what is the only animal with muscle control of 3rd eyelid

A

cat

27
Q

breeds common for 3rd eyelid bent cartilage

A

great dane, saint bernard, weimaraner, german short hair pointer, mastiff

28
Q

what is the correct term for cherry eye

A

prolapse gland of the 3rd eyelid

29
Q

follicular conjunctivitis

A
  • very common in the dog
  • signs: persistent mucoid discharge with hyperplastic follicles leading to raised appearance
  • remove follicles
30
Q

T/F

3rd eyelid flap has healing properties and is better then tarsorrhaphy

A

FALSE

Opthalmology2 (10 decks)

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