Limbus allograft

A TK can be practiced in the same operatory step as a limbus allograft. The intervention begins with a Um-bal peritectomy, followed by the TK [47]. However, the epithelial cicatrization and the comeal transparency are better when the TK is secondarily realized (from 1 to 13 months). The endothelial rejection is less important too 0% against 53% for a transplantation occurring in the first month [18]. 

The big diameter LK was first introduced in the year 2000 by Vajpayee [50] for a use in the surgical treatment of sequelae due to comeal bums. Vajpayee has recorded the results of nine ocular operations. The intervention begins with a conjunctival peritectomy over 360°. The conjunctiva is reclined backwards. The recipient cornea is trepanned to a 12-13 mm diameter and to a 300 pm depth. The lamellar graft is sampled via a trepanation at 1.5 mm back to the limbus in order to include LSC. It is then sutured by 24 10/0 nylon stitches. Despite the limbus allograft, no immunosuppressive therapy has been prescribed. The operation was practiced about 30 months after the occurrence of the bum. Results are recorded after a 7.4 month observation. The visual acuity has improved in six cases. No recurrence of the comeal neovascularization and no... 

---