Pathology: 6. Cornea

Question 0

PBK

Answer 0

CHED appears most similar histologically to this

Question 1

cell loss, Descemet thickening

Answer 1

corneal endothelial/Descemet findings in CHED

Question 2

castellani, polyphagia

Answer 2

two most common Acanthamoeba species involved in corneal infection

Question 3

Acridine orange, calcofluor white, PAS

Answer 3

three stains for identifying Acanthamoeba

Question 4

actinic keratopathy

Answer 4

pinguecula of the cornea

Question 5

fibrous retrocorneal membrane

Answer 5

present on the endothelial surface in about 50% of cases of graft failure

Question 6

endothelium

Answer 6

at normal intraocular pressure, this tissue should normally prevent corneal blood staining

Question 7

cavernous optic atrophy

Answer 7

macular dystrophy is stained the same way as this other ocular condition

Question 8

macular dystrophy

Answer 8

caused by mutation in gene responsible for protein that sulfates keratan sulfate

Question 9

macular dystrophy

Answer 9

corneal stromal dystrophy with thinning

Question 10

Avellino dystrophy

Answer 10

corneal dystrophy with positive Congo red and trichrome staining

Question 11

Fuchs’ corneal dystrophy

Answer 11

MDF-type epithelial changes may occur in this corneal dystrophy