Princeton's WordNet(0.00 / 0 votes)Rate this definition: 1  mushroom(noun) common name for an edible agaric (contrasting with the inedible toadstool) 2  mushroom(noun) mushrooms and related fleshy fungi (including toadstools, puffballs, morels, coral fungi, etc.)
A cornea transplant is an operation used to remove all or part of a damaged cornea and replace it with healthy cornea tissue from the eye of a suitable donor. A cornea transplant is an operation used to remove all or part of a damaged cornea and replace it with healthy cornea tissue from the eye of a suitable donor.
Corneal transplantation, also known as corneal grafting, is a surgical procedure where a damaged or diseased cornea is replaced by donated corneal tissue (the graft).uring surgery the patient's corneal endothelium is removed and replaced with donor tissue. With DSEK, the donor includes a thin layer of stroma, as well as endothelium, and is commonly 100â150 Âµm thick.