Penetrating Keratoplasty: Full Thickness Corneal Transplant Surgery

Before your PKP, you will have a comprehensive eye examination at ReFocus Eye Health Cheshire to measure your cornea precisely and assess your overall eye health. We will take detailed measurements and images of your eye to ensure the donor tissue is the right size and shape. You may need to stop certain medications like blood thinners, and we may prescribe antibiotic or steroid eye drops to use before surgery to optimize your eye's condition. Make sure to arrange for someone to drive you home after the procedure, as your vision will be blurry and you cannot drive that day.

Your surgeon uses a specialized circular cutting instrument called a trephine to carefully remove the central damaged portion of your cornea, creating a perfectly round opening. The donor cornea, which has been prepared to match your measurements, is then placed into this opening and secured with very fine sutures. Typically, 16 or more tiny stitches hold the new cornea firmly in place while it heals and bonds to your eye. At the end of surgery, your ophthalmologist may place a bandage contact lens over your eye to protect it and improve comfort, and a protective shield will cover your eye.

Most patients go home the same day with detailed instructions for care and a follow up appointment scheduled within the first day or two. It is completely normal to experience mild to moderate discomfort, sensitivity to light, tearing, and very blurry vision initially. Your ophthalmologist will provide you with prescription eye drops to control inflammation, prevent infection, and reduce the risk of rejection. Pain medication may also be prescribed to keep you comfortable during the first few days of healing.

PKP can be performed under local anesthesia with sedation, where numbing medicine is injected around your eye and you receive medication to help you relax, or under general anesthesia, where you are fully asleep during the procedure. The choice depends on your overall health, age, anxiety level, and your surgeon's recommendation. Both options are safe and effective, and your surgical team will discuss which approach is best for you.

Vision improves gradually over many months as your eye heals, inflammation subsides, and sutures are adjusted or removed. Most patients notice some improvement within the first few weeks, but vision continues to change and usually stabilizes between six and twelve months after surgery. Some patients see continued improvement even beyond one year. Your final vision depends on many factors, including how well your eye heals, the amount of astigmatism present, and whether you have other eye conditions.

Yes, most patients need glasses or contact lenses after PKP to achieve their sharpest vision. High astigmatism is very common after full thickness corneal transplants, and this affects how clearly you can see without correction. Once your eye has fully healed and your vision has stabilized, our optometrists will test your vision and help you find the best option, whether that is glasses, specialty rigid gas permeable contact lenses, or scleral lenses. Many patients get excellent vision with proper optical correction.

Success rates for PKP are generally very good but vary depending on your specific condition. For keratoconus, success rates often exceed 90 percent at five years, with many grafts remaining clear for a decade or longer. For conditions like Fuchs dystrophy or corneal scars, five year success rates typically range from 70 to 85 percent. More complex cases, such as repeat transplants, eyes with blood vessels growing into the cornea, or corneas damaged by severe infections, may have lower success rates. Your ophthalmologist will discuss realistic expectations based on your individual situation.

Yes, graft rejection is possible at any time after surgery, even years later, which is why ongoing monitoring and sometimes long term low dose steroid drops are important. However, rejection often responds well to treatment if you catch it early. The warning signs to watch for are redness, pain, new or increased sensitivity to light, and sudden decrease in vision. If you experience any of these symptoms, contact ReFocus Eye Health Cheshire immediately. Quick treatment with intensive steroid therapy can usually reverse a rejection episode and save your graft.

Sutures typically remain in place for nine to eighteen months or even longer to allow the cornea to heal fully and securely. Your ophthalmologist may begin selectively removing or adjusting some sutures around three to six months after surgery to help reduce astigmatism and improve your vision. Removing sutures too early can lead to wound problems, so timing is carefully planned based on how well your cornea is healing. Some patients keep a few sutures in place for many years if the graft is stable and comfortable.

Avoid rubbing your eye at all times, as this can damage the healing graft or dislodge sutures. Do not engage in heavy lifting, straining, or bending over for at least several weeks. Swimming, hot tubs, and water sports should be avoided until your ophthalmologist gives you clearance, usually after several months. Contact sports and activities with risk of eye injury should be avoided until your eye is fully healed. Always wear protective eyewear as directed, including sunglasses outdoors and your eye shield at night. Follow your eye drop schedule precisely, as this is critical for preventing rejection and infection.

Astigmatism management begins with selective suture adjustment or removal by your ophthalmologist, usually starting a few months after surgery. This can significantly reduce astigmatism by reshaping the cornea. Once your eye is stable, specialty contact lenses like rigid gas permeable or scleral lenses often provide excellent vision by creating a smooth optical surface over the irregular cornea. In some cases, after complete healing and stabilization, laser vision correction or additional surgical procedures may be options to further reduce astigmatism, though your ophthalmologist will carefully evaluate whether you are a good candidate.

You cannot drive on the day of surgery or for at least several days afterward. Once your vision improves enough to meet legal driving requirements and your ophthalmologist clears you, usually after several weeks, you may resume driving. Returning to work depends on your job type. Desk work or jobs without heavy physical demands can often be resumed within one to two weeks. Jobs involving heavy lifting, physical labor, dusty environments, or risk of eye injury may require a longer recovery period, sometimes several months. Discuss your specific work situation with your ophthalmologist to plan appropriately.

Most private insurance plans and Medicare cover PKP when it is medically necessary to restore vision, though you are typically responsible for deductibles, copayments, and any charges not covered by your plan. Coverage specifics vary by insurance company and your individual policy. Our team at ReFocus Eye Health Cheshire can help you understand your insurance benefits and estimated out of pocket costs before surgery. Financial counseling and payment plan options may be available to help make your care affordable.

The most important rejection warning signs to watch for are new or increased redness of the eye, discomfort or pain, increased sensitivity to light especially if it comes on suddenly, and any sudden decrease or change in your vision. Some patients describe their vision becoming hazy or foggy. If you experience any of these symptoms, contact our office immediately. Early detection and prompt treatment with intensive steroid drops give you the best chance of reversing rejection and saving your graft.