Figure 3: Transmission electron microscopy of the excised right cornea
a) Donor corneal stroma of the peripheral part of the graft showing an extended keratocyte with intracellular (black asterisks) and extracellular (black arrowheads) deposits of a mucoid material together with extracellular deposits of a fibrillogranular material (white asterisks);
b) Donor corneal stroma of the central part of the graft showing a keratocyte filled with fibrilllogranular material (asterisk); the insert shows the fibrillogranular material in higher magnification;
c) Descemet’s membrane and endothelium of the donor cornea showing a normal anterior banded layer (ABL) and an abnormal posterior nonbanded layer (PNBL) of Descemet’s membrane as well as mucoid inclusions (asterisks) within endothelial cells; ST stroma;
d) Descemet’s membrane and endothelium of the host cornea showing a normal anterior banded layer (ABL) and an abnormal posterior nonbanded layer (PNBL) of Descemet’s membrane as well as mucoid inclusions (asterisks) within endothelial cells; ST stroma