Midterm 2: Corneal Dystrophy

Question 1

What corneal dystrophy disorders are found in the anterior layer?

Answer 1

EBMD
Meesman’s
Reis-Bucklers and Theil Behnke (bowmans)

Question 2

What corneal dystrophy disorders are found in the stroma?

Answer 2

Lattice
Granular
Macular
Schnyder’s

Question 3

What corneal dystrophy disorders are found in the posterior layer?

Answer 3

Fuch’s dystrophy
PPMD
Congenital Hereditary Endothelial Dystrophy

Question 4

Epithelial Basement Membrane Dystrophy (EBMD)

Answer 4

AKA Map-dot fingerprint dystrophy/ Cogan’s dystrophy
Anterior dystrophy
Deposits fibrillary protein between BM and Bowmans layer
Most common anterior corneal dystrophy

Question 5

Meesmann’s Epithelial Dystrophy

Answer 5

Anterior corneal dystrophy
Thickening of the corneal epithelial basement membrane.
Intraepithelial cysts filled with cellular debris.
Tiny vesicles/cysts across entire cornea

Question 6

Reis-Bucklers Corneal Dystrophy

Answer 6

Anterior/Bowmans layer dystrophy
Hyaline-like deposits accumulate in Bowman’s layer and anterior stroma
Grey-white reticular opacities

Question 7

Thiel-Behnke Corneal Dystrophy

Answer 7

Anterior/Bowmans layer dystrophy
Curly collagen fiber deposits in Bowmans layer
Honeycomb like opacities