A corneal transplant involves the surgical replacement of a diseased or injured donor cornea with a healthy portion of a donor cornea. The disease or injury causes blindness by interfering with the normal passage of light into the eye. The transplant of clear, healthy donor tissue restores the normal visual pathway. Most corneal transplant that have been performed are full thickness or “penetrating” corneal transplants. The medical term for a corneal transplant is “keratoplasty”. A...