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 Transplants. T he cornea is the clear tissue covering the front of your eye. Like the crystal on your watch, your cornea serves as a protective window that allows light to enter your eye and come to focus on your retina.The cornea must remain clear for you to have good vision.orneal Transplants. T he cornea is the clear tissue covering the front of your eye. Like the crystal on your watch, your cornea serves as a protective window that allows light to enter your eye and come to focus on your retina. The cornea must remain clear for you to have good vision.