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Oral Boards > Cornea > Flashcards

Cornea Flashcards

0
Q

What is fabrys

A

Alpha galactosidase deficiency

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1
Q

Ddx k verticillata

A 
Amiodorone
Chloroquine
Hydroxychloroquine
Indomethacin
Fabrys
Healed epi defect
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2
Q

Ddx papillae

A

Vernal keratoconjunctivitis
Atopic keratoconjunctivits
Retained foreign body
Superior limbic keratoconjunctivitis

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3
Q

Ddx recurrent epi erosions

A

Map dot fingerprint
Previous old sharp trauma to k
Any basement membrane dystrophy

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4
Q

Name 5 signs of kcn

A 
Fleisher ring
Munson sign
Rizzutti sign (shine lite from side get conical reflex)
Vogt striae 
Scissoring effect on retinoscipy
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5
Q

What are the 3 k extatic disorders?

A

Kcn
Pellucid
Keratoglobus

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6
Q

What are the telltale signs of each k ectatic do on k topo?

A

Kcn- thinning at apex of cone
Pluccid- crab claw config w beer belly type k
Keratoglobus- overall thinning

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7
Q

Ddx peripheral k thinning

A

Terriens- no pain
Furrow marginal degen- no pain
Moorens ulcer- painful dx of exclusion
Puk- painful

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8
Q

Ddx hypopyon

A 
Endophthalmitis
K ulcer related
Bechets
Medicine (rifabutin, cidofovir)
Anterior uveitis
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9
Q

Ddx blue nodules of k in midperiphery

A

Salzmanns

Spheroidal degeneration from solar elastosis

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10
Q

Ddx of what causes filaments

A 
Ded
S/p Cn7 palsy
S/p hsv
S/p pk
Exposure
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11
Q

Ddx follicles acute

A

Adeno hardly happens to careful nuns

Adenovirus
Herpes
Hemorrhagic conjunctivitis (picornavirus)
Chlamydia
Newcastles dz
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12
Q

Ddx chronic follicles

A

Passing tough tests means (last) minute cramming

Perinauds
Trachoma
Toxic (medicamentosa)
Moraxella
Mollescum
Chlamydia
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13
Q

Ddx guttae

A

Ppmd
Fuchs
Pbk
Pigment dispersion(pigment can mimic guttae)

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14
Q

Whats the wu for fuchs?

A

Ecc <1000
Cct
Check for endo changes on retroillumination

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15
Q

Ddx subluxed lens 6 things

A
  1. Marfans
  2. Homocystinuria
  3. Trauma
  4. Weil marchesani
  5. Syphillis
  6. Pseudoex
16
Q

Ddx microspherophakia (palmar)

A 
Peters
Alports
Lowes
Marfans and marchesani
Rubella
17
Q

Ddx white material on lens 4 things

A

Pseudoex
True exfoliation (glassblower)
Amyloid
Uveitis

18
Q

Bacteria that can invade intact epi

A

N n can lyse hole skin

Neiss gonn
Neiss meningit
Corynebacterium
Haemophillus
Shigella
19
Q

Name 2 acids and 4 bases that can cause injury

A

Acids

  1. Car batteries
  2. Nitric acid

Bases

  1. Drain cleaner
  2. Fertilizers
  3. Cement
  4. Sparklers
20
Q

Ddx ring infiltrate (path)

A

Pseudomonas
Acanthomeba
Topical anesthetic use
Herpes simplex

21
Q

Ddx ring infiltrate

Path

A

Pseudomonal
Acanthomeba
Topical anestheic abuse
Herpes

Oral Boards (8 decks)

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