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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). When the entire cornea is replaced it is known as penetrating keratoplasty and when only part of the cornea is replaced it is known as lamellar keratoplasty .
Corneal transplant surgery may be difficult due to the peripheral thinning of the cornea, even with large and off-center grafts. [9] Therefore, surgery is usually reserved for people that do not tolerate contact lenses. Several different surgical approaches may be taken, and no one approach is currently established as the standard.
In November 2023, surgeons at NYU Langone Health announced the first successful eye transplantation, [8] which was carried out as part of a partial face transplant in an operation that took 21 hours. [8] The recipient, Aaron James, had lost the left side of his face with his eye, nose and mouth in a high-voltage power line accident. [8]
The first successful cornea transplant was performed in 1905 and the first eye bank was founded in 1944. Currently, in the United States, eye banks provide tissue for over 80,000 cornea transplants each year [ 1 ] to treat conditions such as keratoconus [ 2 ] and corneal scarring .
Treatment options include contact lenses and intrastromal corneal ring segments for correcting refractive errors caused by irregular corneal surface, [7] [8] corneal collagen cross-linking to strengthen a weak and ectatic cornea, [9] or corneal transplant for advanced cases.
Nov. 28—ANDERSON — Cloudy vision could be caused by an array of things, some benign, some not. For 65-year-old Mike Dauss, it was the latter. An abnormality was discovered during an annual eye ...
The corneal transplant surgeon trephines a lenticule of corneal tissue and then grafts the donor cornea to the existing eye tissue, usually using a combination of running and individual sutures. The cornea does not have a direct blood supply, so the donor tissue is not required to be blood type matched.
Experts estimate that 12.7 million people around the world are blind due to damaged or diseased corneas, but only one in 70 patients receives a cornea transplant. And those who need cornea ...