Corneal transplantation is a surgery that involves replacing the patient's cornea with corneal tissue from a donor. This procedure is also called a keratoplasty. Cornea is a transparent layer shaped like a dome in the eye. This layer plays a role in focusing the light that enters the eye. Corneal tissue can heal by itself in minor injuries and injuries. However, deeper injuries can permanently damage the sufferer's vision. Corneal transplants can restore vision, reduce pain, and improve the shape or appearance of the damaged cornea. The cornea used comes from a deceased donor. All corneas will be examined first to ensure they are healthy and safe for use in a transplant.