Long-Term Outcomes of Allogeneic Ocular Surface Reconstruction: Keratolimbal Allograft (KLAL) Followed by Penetrating Keratoplasty (PK)

Table 2

Characteristics of primary KLAL failure.

Cause of KLAL failure	Total (N = 17) N (100%)	Chemical burn (n = 6)	Thermal burn (n = 1)	Postinflammatory scar (n = 6)	Posttraumatic scar (n = 0)	Stevens-Johnson syndrome (n = 2)
Primary failure	2 (11.8)	1 (16.7)				1 (50.0)
Rejection	2 (11.8)	1 (16.7)
Persistent epithelial defect	3 (17.6)	1 (16.7)		2 (33.3)
Corneal neovascularization	7 (41.2)	2 (33.3)	1 (100.0)	2 (33.3)		1 (50.0)
Conjunctivalization	3 (17.6)	1 (16.7)		2 (33.3)