The evolution of lamellar keratoplasty.

Recent advancements in lamellar keratoplasty have two aspects: the refinement in surgical technique, which has improved postoperative visual outcomes and the transplantation of specific tissues of the donor cornea, such as limbal stem cells. Stem cell transplantation has expanded dramatically as a method of ocular surface reconstruction. Long-term prognosis for limbal allograft transplantation has recently been reported, and postoperative treatments including epithelial management and immunosuppression are now major topics to be studied.