A cornea transplant, or graft, is a surgical procedure to remove and replace all or part of the cornea. The cornea is the front window of the eye and it covers the iris, pupil, and anterior chamber. The cornea is made up of 5 layers; the epithelium, Bowman's layer, the stroma, Descemet's membrane, and the endothelium. If one or more of these layers are diseased or damaged, a cornea transplant may be necessary. There are 3 main types of cornea transplant surgeries, with each replacing a different part of the cornea depending on what is needed. All types of corneal transplants use donor tissue to replace the diseased or damaged cornea tissue. The donor tissue is taken from a healthy, clear cornea from the eye of a donor who has died.
from Health and Fitness:Eyes Vision Articles from EzineArticles.com http://ift.tt/2wKLghD