Cornea Transplant Essay

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BIOLOGY ESSAY
Discuss the role of Human transplants in society

There are many types of organs in our body. Each organ has their own function and they are important. If an organ is damaged or diseased, without medical help, a person could die. The cornea is very special and is an important part of human body. It helps to protect the rest of the eye from germs, dust, and other harmful matter. The cornea acts as the eye’s outermost lens. It functions like a window that controls and focuses the entry of light into the eye. The cornea also serves as a filter, screening out some of the mist damaging ultraviolet wavelengths in sunlight. Without this protection, the lens and the retina would be highly susceptible to injury from ultraviolet radiation. (SOLL EYE)

A cornea transplant is a surgical procedure to replace part of the cornea with corneal tissue from a deceased donor. Cornea transplant apply for people who have vision problem caused by thinning of the cornea, severe infections or injuries to scarring of the cornea or vision loss caused by cloudiness of the cornea. The method of cornea surgery is complex. Sometimes, the body rejects the transplant tissue. This occurs in a small number of patients (The New York Times). It occurs in about one out of three patients in the first five years (Medline Plus). According to Alabama Eye Bank, more than 90% of cornea transplant operations successfully restore the recipient’s vision. Other dangers for a corneal transplant are bleeding, infection of the eye, Glaucoma (high pressure in the eye than can cause vision loss) and swelling of the front of the eye (Medline Plus). Certainly, the medical provider would take every possible precaution to prevent such complications because it can permanently damage the eyes. The surgery consists of the removal of a circular piece of the affected cornea and replacing it with a piece of donor cornea of exactly the same size or shape. It is sewn into place with very fine...
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