Researchers from University College London and the Moorfields Eye Hospital have reported on research studies demonstrating the feasibility of cone transplantation into the adult retina. The research used embryonic and post natal developing photoreceptor cells as the donor source for transplantation into two animal models of Leber congenital amaurosis (LCA). The authors of the report presented data supporting cone cell integration into wild type and degenerating retinae leading to the prospect of a future therapeutic application.