Fig. 2

Histological examination (hematoxylin and eosin stain). (1) Atrophic or a denuded endothelial layer at the “wound margin” is present; (2) in addition, a disrupted Descemet’s membrane with a gap is observed (not observable on slit-lamp examination); (3) the fibrous structure originates from the corneal stroma, traverses the Descemet’s membrane gap, and expands onto the bare Descemet’s membrane