Indications and Surgical Techniques for Repeat Corneal Transplantation in Eastern China: A Twelve-Year Study

Table 4

The distribution of surgical indications of repeat keratoplasties.

Indications	One repeat keratoplasty					Multiple repeat keratoplasties
	PKP	ALK	DALK	DSEK	KLAL	PKP	ALK	DALK	DSEK	KLAL
Acquired nontraumatic	217 (51.9%)	9 (2.2%)	5 (1.2%)	20 (4.8%)	5 (1.2%)	63 (55.8%)	7 (6.2%)	0	21 (1.8%)	1 (0.9%)
Infectious keratitis	95 (22.7%)	2 (0.5%)	1 (0.2%)	1 (0.2%)	0	26 (23%)	1 (0.9%)	0	0	0
Bullous keratopathy (except those caused by Fuchs dystrophy)	41 (9.8%)	0	2 (0.5%)	19 (4.5%)	0	13 (11.5%)	0	0	1 (0.9%)	0
Corneal scarring	56 (13.4%)	0	0	0	0	14 (12.4%)	0	0	1 (0.9%)	0
Keratoconus	13 (3.1%)	1 (0.2%)	1 (0.2%)	0	0	4 (3.5%)	0	0	0	0
Noninfectious keratitis	3 (0.7%)	5 (1.2%)	1 (0.2%)	0	5 (1.2%)	6 (5.3%)	5 (4.4%)	0	0	1 (0.9%)
Corneal degeneration	6 (1.4%)	1 (0.2%)	0	0	0	0	1 (0.9%)	0	0	0
Others	3 (0.7%)	0	0	0	0	0	0	0	0	0
Congenital abnormalities	64 (15.3%)	11 (2.6%)	0	7 (1.7%)	2 (0.5%)	11 (9.7%)	0	0	4 (3.5%)	0
Corneal dystrophy	34 (8.1%)	1 (0.2%)	0	7 (1.7%)	0	10 (8.8%)	0	0	4 (3.5%)	0
Congenital leucoma	27 (6.5%)	0	0	0	0	1 (0.9%)	0	0	0	0
Limbal dermoid	3 (0.7%)	10 (2.4%)	0	0	2	0	0	0	0	0
Acquired traumatic	71 (17.0%)	3 (0.7%)	1 (0.2%)	0	3 (0.7%)	21 (18.6%)	1 (0.9%)	2 (1.8%)	0	1 (0.9%)
Chemical injury	31 (7.4%)	2 (0.5%)	1 (0.2%)	0	3 (0.7%)	14 (12.4%)	1 (0.9%)	2 (1.8%)	0	0
Mechanical injury	30 (7.2%)	0	0	0	0	3 (2.7%)	0	0	0	0
Thermal injury	10 (2.4%)	1 (0.2%)	0	0	0	4 (3.5%)	0	0	0	1 (0.9%)
Subtotal	352 (84.2%)	23 (5.5%)	6 (1.4%)	27 (6.5%)	10 (2.4%)	95 (84.1%)	8 (7.1%)	2 (1.8%)	6 (5.3%)	2 (1.8%)
Total	418 (100%)					113 (100%)

PKP: penetrating keratoplasty; ALK: anterior lamellar keratoplasty; DALK: deep anterior lamellar keratoplasty; DSEK: Descemet stripping endothelial keratoplasty; KLAL: keratolimbal allograft.