from EBOD

Question 1

signs of keratoconus

Answer 1

Munson’s sign, Fleischer ring and Vogt’s striae

Question 2

Bowman’s membrane has a thickness of

Answer 2

8-12 microns

Question 3

Bowman’s membrane - regenerative capacity

Answer 3

not good

Question 4

The main collagen fibres in the stroma are

Answer 4

I, III, V and VI

Question 5

Descemet’s membrane increases / decreases in thickness with age

Answer 5

increases

Question 6

Corneal endothelium: derived from the

Answer 6

neural crest

Question 7

Pharyngoconjunctival fever is one of the characteristic syndromes, its symptoms last LESS / MORE time than epidemic keratoconjunctivitis

Answer 7

less

Question 8

The most effective method for preventing nosocomial infection is indeed identification and isolation, but in the previous

Answer 8

14-21 days

Question 9

Ligneous conjunctivitis - where are the membranes

Answer 9

subtarsal membranes

Question 10

Trauma with plant material - which fungi

Answer 10

filamentous

Question 11

Candida keratitis should be suspected in cases of

Answer 11

prolonged use of contact lenses, systemic immunosuppression and diabetes

Question 12

Adult inclusion conjunctivitis – Treatment

Answer 12

Azithromycin 1 g

Question 13

Hassall–Henle bodies

Answer 13

Collagen deposits – Descemet’s membrane

Question 14

Wilson’s disease

Answer 14

Copper deposits – Descemet’s membrane

Question 15

cystinosis

Answer 15

crystalline deposits are found on the surface of the stroma

Question 16

epithelial dystrophies

Answer 16

EBMD, Meesmann, Lisch, Gelatinous droplike

Question 17

epithelial-stromal dystrophies

Answer 17

Reis-Bucklers, Thiel-Benkhe, Lattice, Granular

Question 18

stromal dystrophies

Answer 18

Macular, Schnyder, Congenital Stromal, Fleck, Posterior amorphous, Pre-Descemet

Question 19

iridocorneal endothelial syndrome - pathology

Answer 19

metaplasia of epithelioid cells in the endothelium, which can be assessed by specular microscopy

Question 20

Mooren’s - most common form

Answer 20

unilateral and affects elderly patients with no associated autoimmune disorder

Question 21

Mooren’s - second form

Answer 21

young people, most commonly Asian/Indian, and is very aggressive, painful and bilateral. An association with HCV has indeed been described

Question 22

Pellucid marginal degeneration - age compared to keratoconus

Answer 22

later age

Question 23

Pellucid marginal degeneration - where in cornea

Answer 23

inferior peripheral region

Question 24

Limbal girdle of Vogt - where in cornea

Answer 24

nasal and temporal limbus (nasal is more common)

Question 25

Moorn’s and PUK - differential

Answer 25

Mooren’s ulcer is not associated with any systemic autoimmune condition and does not affect the sclera, unlike PUK, which can cause scleritis and usually occurs in individuals with systemic autoimmune diseases

Question 26

EBOD - % population, M or F

Answer 26

in 6-18% of the population, predominantly women over 50 years of age

Question 27

EBOD - % suffer from erosions

Answer 27

10% of these patients suffer from recurrent corneal erosion

Question 28

Ocular cicatricial pemphigoid -sex and age

Answer 28

affects people over 60 years of age, predominantly women (2:1)

Question 29

Ocular cicatricial pemphigoid - staining

Answer 29

positive immunofluorescence staining of the basement membrane of the conjunctiva, but this test is often negative, even when this diagnosis is strongly suspected

Question 30

CIN - recurrence

Answer 30

between 33% and 50%

Question 31

CIN - treatment

Answer 31

Both 5-FU and surgical resection are therapeutic options, as are Mitomycin C and interferon alpha-2beta

Question 32

Peter’s - pathology

Answer 32

focal loss of Descemet’s membrane and the underlying endothelium

Question 33

LASIK alters corneal sensitivity and can be the cause of neurotrophic keratopathy - T or F

Answer 33

T

Question 34

Can atopy cause stem cell deficiency

Answer 34

T

Question 35

Can pterygium cause stem cell deficiency

Answer 35

T

Question 36

speed up the resolution of episodes of herpetic epithelial keratitis

Answer 36

oral treatment with Acyclovir 500 mg every 12 hours for 7 days

Question 37

Hypoaesthesia in herpetic

Answer 37

patchy, but it does depend on the severity, duration and number of episodes suffered

Question 38

Down - contraindications for which transplants

Answer 38

penetrating keratoplasty and DALK

Question 39

A patient who had penetrating keratoplasty 18 months ago comes for a post-transplant follow-up visit. Topography shows 7 D of astigmatism at 80 - 260º. Supposing that he has not yet had any sutures removed, which one would you remove first?

Answer 39

At 170º and -10º

Question 40

anteriorly displaced Schwalbe’s line - what is it

Answer 40

junction of Descemet’s membrane and the trabecular meshwork