Figure 1. Kaplan–Meier curve and histology. Survival of allogeneic (continuous line) and syngeneic (interrupted line) transplants: 80% of syngeneic transplants survived. A: The median survival of the allogeneic transplants was 12 days. Cryosections were dissected at the indicated days after keratoplasty. B–G: The allogeneic transplants showed dense infiltration of inflammatory cells in addition to stromal edema. The syngeneic transplants showed less cellular infiltration around the sutures (✱) and almost no edema (B–D: allogeneic day 15, E–G: allogeneic day 21, H–J: syngeneic day 21).