formation of a stable “second anterior chamber” and maintaining thetransparency of cornea. Subsequently, the “detachment pool” dries up andreattachment of DM may occur when the donor endothelial cells (entrancepump) die or lose their function. The death of donor endothelial cells may beeither from the mechanical friction between donor and host or from theaccumulation of metabolic waste and lack of nutrients between the graft–hostinterface.