A method of sustaining cells is provided. The method can include providing a non-perfluorocarbon cell storage medium, providing a pre-oxygenated liquid perfluorocarbon in contact with the storage medium, and placing the cells in contact with the storage medium but not in contact with the perfluorocarbon. Additionally, the method can result in increased corneal cell viability compared to corneal cells placed in a non-perfluorocarbon cell storage medium without being in contact with a pre-oxygenated liquid perfluorocarbon.
