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.
Other people suffer blunt injuries, burns or infections of the eye that damage one or both corneas. Most people suffer from a variety of ocular diseases that affect the corneas. A disease may cause the cornea to become clouded and distorted in shape. When the cornea is clouded, no light can pass through and blindness sets in. A corneal transplant is needed if: Vision cannot be corrected satisfactorily with eyeglasses or contact lenses; Painful swelling cannot be relieved by medications or special contact lenses; What could have caused the need for a transplant? Corneal failure after other eye surgery, such as cataract surgery