How To Prepare For Cornea Transplantation?

Before keratoplasty, the following steps are performed.

•  A Detailed Eye Examination: A detailed eye examination should be performed in terms of problems that may affect the surgery.
•  Eye Measurements: The measurements of the donor cornea will be evaluated.
•  Medications You Use: You may need to stop some medications before corneal transplant.
•  Resolving Other Eye Problems: Infection or other eye inflammations may reduce the success of corneal transplantation.

Finding A Donor Cornea

The majority of donor corneas used in corneal transplantation are cadaveric corneas. Finding donor corneas often involves kidney and liver It is not as difficult as transplanting. The reason for this is the legal regulations on cornea transplantation and the other organ donation of the cornea. more than forgiveness. Some nervous system donors for keratoplasty They should not have diseases and infections and should not have had an eye surgery before. still unknown The corneas of people who died due to reasons are not suitable for corneal transplantation.

What Is Done During The Operation?

Keratoplasty is an operation that can be performed with or without the patient's sleep. The preference of the patient and the physician in this regard is important. The most common corneal transplant is a full-thickness corneal transplant. First, the patient's cornea is circularized with an instrument called a trephine. taken somehow. Then the donor cornea is cut to fit the space formed in your cornea. Finally, the cut donor cornea It is sutured to the space in the patient's cornea. In some cases, the patient is not suitable to receive a donor cornea. In these cases artificial corneas (keratoprosthesis) can be used.

Half Layer Corneal Transplant

Full thickness corneal transplantation is not the most appropriate treatment for some corneal problems. In these cases certain layers of the cornea transfer is carried out. These methods are:

•  Endothelial Keratoplasty:This procedure is used for problems with the posterior layers of the cornea. endothelial layer It is a single layer of cells in the back of the cornea. Endothelial cell layer A membrane called Descement's membrane stands on it. Descement membrane transplantation is performed together with the endothelial cell layer.
• Anterior Lamellar Keratoplasty: In this procedure, unlike endothelial keratoplasty, the anterior part of the cornea done because of problems. The superficial parts of the cornea are combined with the superficial parts of the cornea taken from the donor cornea. is being changed. This method is SALK (Superficial Anterior Lamellar Keratoplasty) and DALK (Deep Anterior Lamellar Keratoplasty). is divided into two parts.

Period After Keratoplasty

•  Drops and Medications:Eye drops and sometimes oral medications are used after corneal transplantation. These drugs are are drugs that accelerate healing and reduce risks.
• Eye Closure:Using eye closure to protect the eye after transplantation is an important point. It is important in the early period.
• Frequent Checks:Frequent checks are usually required, especially in the first months after transplantation.

Results

After keratoplasty, some level of vision is achieved, albeit partial. How will the outcome be, most of the time corneal transplant It is related to the problem that caused you. Risks and complications after corneal transplant even years after surgery may arise. For this reason, it is necessary to have regular check-ups every year. Corneal rejection reaction is usually controlled with drugs. can be taken under.

What Is Done During The Operation?

Keratoplasty is an operation that can be performed with or without the patient's sleep. The preference of the patient and the physician in this regard is important. The most common corneal transplant is a full-thickness corneal transplant. First, the patient's cornea is circularized with an instrument called a trephine. taken somehow. Then the donor cornea is cut to fit the space formed in your cornea. Finally, the cut donor cornea It is sutured to the space in the patient's cornea. In some cases, the patient is not suitable to receive a donor cornea. In these cases artificial corneas (keratoprosthesis) can be used.

Post-Transplant Vision Correction

Visual acuity after keratoplasty may initially be worse than before surgery. Increasing your vision can find the bear. After the transplant, when the outer parts of the cornea heal, some procedures are needed to increase vision. applications can be made.

• Correcting Astigmatism Due to Corneal Irregularity:The sutures placed to hold the cornea in place are uneven on the corneal surface and dimpled areas, which can lead to astigmatism. In this case, the appropriate stitches to be taken will be able to reduce the amount of astigmatism.
• Removing Vision Problems: Problems such as myopia and hyperopia after surgery It can be removed with lenses and sometimes laser eye surgeries.