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Understanding the procedure
A cornea transplant replaces a damaged or diseased cornea with healthy donor tissue. The cornea is the clear front window of the eye, and when it becomes scarred, swollen, or misshapen, vision can be badly affected.
In the UK, this surgery is usually offered when glasses, contact lenses, or other treatments are no longer enough. Your eye specialist will explain which type of transplant is most suitable, as not every problem needs the same operation.
Before your surgery
Your journey usually begins with several clinic appointments and tests. These help the team measure your eye, check your general health, and decide on the best surgical approach.
You may be asked about your medicines, allergies, and any previous eye problems. If you take blood thinners or other regular medication, the hospital will tell you whether any changes are needed before the operation.
It is also a good time to plan practical support at home. You may need help with lifts, shopping, cooking, and drops after surgery, especially in the first few days.
The day of the operation
Cornea transplant surgery is usually carried out as a day case or with a short hospital stay. Most procedures are done under local anaesthetic, although some people have a general anaesthetic instead.
During the operation, the surgeon removes the damaged corneal tissue and replaces it with a donor cornea or a thin layer of it, depending on the type of transplant. The whole process is carefully controlled and often takes around one to two hours.
Afterwards, your eye will usually be covered with a protective pad or shield. You will rest in recovery before going home with instructions, eye drops, and a follow-up appointment.
Recovery at home
Recovery takes time, and your vision may be blurry at first. It is normal for the eye to feel sore, watery, or sensitive to light in the early days.
You will usually need antibiotic and steroid eye drops for several weeks or months. These help prevent infection and reduce inflammation, so it is important to use them exactly as prescribed.
Many people return to light activities within a few days, but heavy lifting, rubbing the eye, and swimming are usually avoided for a while. Your hospital team will guide you on when it is safe to drive, work, and resume exercise.
Looking after your eyesight long term
A cornea transplant can improve sight, but healing is gradual and follow-up is essential. You may need several appointments so the team can monitor the graft and adjust your treatment.
Some people need glasses or contact lenses after surgery to get the best vision. In a few cases, stitches are removed later or the prescription changes as the eye settles.
If you notice pain, redness, worsening vision, or light sensitivity, contact your eye clinic promptly. With good care and regular check-ups, many people go on to enjoy better vision and a much better quality of life.
Frequently Asked Questions
A cornea transplant is a surgical procedure that replaces a damaged or diseased cornea with healthy donor corneal tissue to improve vision, reduce pain, or restore the eye’s shape.
People with corneal scarring, severe corneal swelling, keratoconus, corneal dystrophies, or other corneal damage that significantly affects vision or comfort may be eligible for a cornea transplant after evaluation by an eye surgeon.
Cornea transplant can treat conditions such as corneal scarring, keratoconus, corneal edema, corneal dystrophies, corneal ulcers, and corneal injury when other treatments are not enough.
During a cornea transplant, the surgeon removes all or part of the damaged cornea and replaces it with donor tissue using stitches or other fixation methods, depending on the transplant type.
Common types of cornea transplant include penetrating keratoplasty, deep anterior lamellar keratoplasty, and endothelial keratoplasty, each chosen based on which layer of the cornea is damaged.
A cornea transplant usually takes about one to two hours, although the total time at the surgical center is longer because of preparation and recovery before discharge.
Recovery after cornea transplant can take months, with vision improving gradually. Patients usually use prescribed eye drops, protect the eye, and attend follow-up visits for healing checks.
Vision after cornea transplant often improves slowly over several weeks to months, and final vision may continue to change for up to a year or longer depending on healing and the transplant type.
Risks of cornea transplant include infection, rejection of the donor tissue, increased eye pressure, bleeding, astigmatism, graft failure, and delayed healing.
Cornea transplant rejection happens when the immune system attacks the donor corneal tissue. Warning signs may include redness, pain, light sensitivity, and decreased vision, and it needs prompt medical attention.
Cornea transplant rejection can be reduced by using prescribed steroid or other anti-rejection eye drops, attending follow-up appointments, protecting the eye from injury, and reporting symptoms early.
Cornea transplant has a high success rate in many patients, especially when the underlying eye condition is stable and postoperative care is followed closely, but long-term outcomes vary by diagnosis and transplant type.
Cornea transplant results can last many years, and some grafts last a lifetime. Longevity depends on the reason for surgery, eye health, rejection risk, and ongoing care.
After cornea transplant, patients should avoid rubbing the eye, heavy lifting, swimming until cleared, dusty environments when possible, and any activity that could injure the healing eye.
Return to work after cornea transplant depends on the job and healing progress. Some people return within a few days to weeks for light duties, while jobs involving physical strain may require longer recovery.
Many people still need glasses or contact lenses after cornea transplant because the eye may have astigmatism or other refractive changes during healing.
Cornea transplant is usually not painful during surgery because anesthesia is used. Mild discomfort, tearing, or irritation can occur during recovery and is managed with prescribed medicines.
Donor tissue for cornea transplant comes from eye banks that recover and carefully screen corneas from deceased donors to ensure they are safe and suitable for transplantation.
The cost of cornea transplant varies by country, hospital, insurance coverage, surgeon fees, anesthesia, and follow-up care. Patients should ask their eye surgeon and insurer for an estimate.
After cornea transplant, you should call the doctor immediately for severe pain, sudden vision loss, increasing redness, discharge, light sensitivity, trauma to the eye, or any signs of rejection or infection.
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