Cornea

Question 0

What is fabrys

Answer 0

Alpha galactosidase deficiency

Question 1

Ddx k verticillata

Answer 1

Amiodorone
Chloroquine
Hydroxychloroquine
Indomethacin
Fabrys
Healed epi defect

Question 2

Ddx papillae

Answer 2

Vernal keratoconjunctivitis
Atopic keratoconjunctivits
Retained foreign body
Superior limbic keratoconjunctivitis

Question 3

Ddx recurrent epi erosions

Answer 3

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

Question 4

Name 5 signs of kcn

Answer 4

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

Question 5

What are the 3 k extatic disorders?

Answer 5

Kcn
Pellucid
Keratoglobus

Question 6

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

Answer 6

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

Question 7

Ddx peripheral k thinning

Answer 7

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

Question 8

Ddx hypopyon

Answer 8

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

Question 9

Ddx blue nodules of k in midperiphery

Answer 9

Salzmanns

Spheroidal degeneration from solar elastosis

Question 10

Ddx of what causes filaments

Answer 10

Ded
S/p Cn7 palsy
S/p hsv
S/p pk
Exposure

Question 11

Ddx follicles acute

Answer 11

Adeno hardly happens to careful nuns

Adenovirus
Herpes
Hemorrhagic conjunctivitis (picornavirus)
Chlamydia
Newcastles dz

Question 12

Ddx chronic follicles

Answer 12

Passing tough tests means (last) minute cramming

Perinauds
Trachoma
Toxic (medicamentosa)
Moraxella
Mollescum
Chlamydia

Question 13

Ddx guttae

Answer 13

Ppmd
Fuchs
Pbk
Pigment dispersion(pigment can mimic guttae)

Question 14

Whats the wu for fuchs?

Answer 14

Ecc <1000
Cct
Check for endo changes on retroillumination

Question 15

Ddx subluxed lens 6 things

Answer 15

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

Question 16

Ddx microspherophakia (palmar)

Answer 16

Peters
Alports
Lowes
Marfans and marchesani
Rubella

Question 17

Ddx white material on lens 4 things

Answer 17

Pseudoex
True exfoliation (glassblower)
Amyloid
Uveitis

Question 18

Bacteria that can invade intact epi

Answer 18

N n can lyse hole skin

Neiss gonn
Neiss meningit
Corynebacterium
Haemophillus
Shigella

Question 19

Name 2 acids and 4 bases that can cause injury

Answer 19

Acids

1. Car batteries
2. Nitric acid

Bases

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

Question 20

Ddx ring infiltrate (path)

Answer 20

Pseudomonas
Acanthomeba
Topical anesthetic use
Herpes simplex

Question 21

Ddx ring infiltrate

Path

Answer 21

Pseudomonal
Acanthomeba
Topical anestheic abuse
Herpes