15 to 20 years
It's important to understand that the transplant will not lastforever. How long it lasts depends on the reason for thetransplant. For example, a transplant in a patient with keratoconus usually lasts 15 to 20 years.
Afterward, you'll probably wear an eye patch for at least a day until the top layer of your cornea heals. Your eye will most likely be red and sensitive to light. It might hurt or feel sore for a few days, but some people don't feel any discomfort.
You will be in the operating room for 1-2 hours, but the actual surgery will take less time.
Around 95% of full-thickness (penetrating) cornea transplants in low-risk conditions, such as keratoconus, last at least 10 years.