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equine Ophtho junior > Equine eyelid disorders > Flashcards

Equine eyelid disorders Flashcards

1
Q

Clinical signs eyelid dysfunction (6)

A
  1. Gross tissue distortion
  2. Ulceration
  3. Changes in mobility
  4. Epiphora
  5. Mucopurulent discharge
  6. Exposure/irritation keratitis
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2
Q

Eyelid anatomy (5)

A
  1. Haired skin
  2. Tarsal Plate
  3. Meibomian glands
  4. Muscle (orbicularis oculi)
  5. Conjunctiva
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3
Q

Eyelid functions (5)

A
  1. Protect the globe
  2. Clean and lubricate
  3. Distribute tear film
  4. Move fluid into NLD
  5. Remove debris/foreign bodies
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4
Q

What to look for eyelid eval (7)

A
  1. Symmetry
  2. Margin position, integrity
  3. Swelling
  4. Wounds, ulcerations
  5. Condition of glands
  6. Position of lashes
  7. Effectiveness of blink mech
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5
Q

Most common eyelid dz etiology (2)

A
  1. Trauma

2. Neoplasia

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6
Q

Modified Hotz-Celsus

A

surgical repair intropion take out half moon shape of bottom lid

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7
Q

H-plasty

A

Surgical technique to remove part of bottom eyelid

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8
Q

Beta radiation and strontium radiation

A

Don’t penetrate eyelid well, but good for cornea

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9
Q

Intralesional chemotherapy (5)

A
  1. Series of 8+ injections cisplatin maybes
  2. Worse before better
  3. Best as adjunct
  4. Continue injections until clean bx
  5. Remission up to 1 yr….
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10
Q

PDT (4)

A

Photodynamic Therapy

  1. photosensitizing agent and light in presence of oxygen to produce a localized phototoxic effect
  2. Reactive oxygen species formed
  3. Cytotoxicity via-apoptosis, necrosis, autophagy associated cell death
  4. Infuse agent into affected tissue-apply light source
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11
Q

Sarcoid immunotherapy (4)

A
  1. BCG (Bacillus-Calmette-Gaerin
  2. Series intralesional injections
  3. Worse before better
  4. Small risk anaphylaxis
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12
Q

DIstichiasis

A

Eyelash emerges from meibomian gland

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13
Q

Trichiasis

A

Eyelashes grow towards the eyeball

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14
Q

Ectopic cilia

A

hair in a place it shouldna be

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15
Q

Behavoir of SCC

A

Locally aggressive

-treat early and aggressively

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16
Q

SCC Treatment options (10)

A
  1. Surgical excision
  2. Radiation
  3. Cryotherapy
  4. Intralesional chemotherapy
  5. Intralesional chemotherapy
  6. Photodynamic therapy (PDT)
  7. Immunotherapy (BCG)
  8. Hyperthermia
  9. Laser ablation
  10. Combo therapy
17
Q

Gold standard for many eyelid neoplasms

18
Q

Sarcoid treatment options (9)

A
  1. Benign neglect
  2. Radiation
  3. Immunotherapy
  4. Photodynamic therapy (PDT)
  5. Surgical excision
  6. Cryotherapy
  7. Intralesional, topical chemotherapy
  8. Hyperthermia
  9. Combo

equine Ophtho junior (14 decks)

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