Corneal transplantation, also known as corneal grafting or penetrating keratoplasty, is a surgical procedure where a damaged or diseased cornea is replaced by a donated corneal tissue, which has been removed from a recently deceased individual having no known diseases which might affect the viability of the donated tissue. Only the central portion of the cornea is involved in transplantation. The surgeon excises an appropriate circular disc of the patient's cornea and replaces it with a similarly sized disc of donor cornea, which is then sutured into place.
Tissue Availability: Corneas for transplant come from individuals who have donated their eyes for use after their death, for the benefit of others. Donor corneal tissue can be used up to maximum of 4 days after the death of the donor depending on the modality of preservation. This includes screening for AIDS. With a few exceptions, donor tissue up to age seventy years is usable. Factors such as sex, color of the iris, previous vision of the donor have no influence on the final outcome of the surgery. Anyone wishing to be an eye donor should call the nearest Eye bank and pledge the same.
The Surgical Procedure: Cornea transplant can be performed under local anesthesia in adults. Children, however, may require general anesthesia. The surgery takes about an hour to perform and the eye will be patched for a day after the surgery. However, you can go back home immediately after the surgery. The eye patch is removed the next day and then you can start performing your daily tasks.
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