Penetrating Keratoplasty (image) NIH/National Eye Institute Caption In a traditional corneal transplant, or penetrating keratoplasty, the central part of the cornea is removed and a donor cornea is sutured in its place. Credit Image courtesy of Dr. Edward Holland, University of Cincinnati. Usage Restrictions Please credit Dr. Edward Holland, University of Cincinnati. Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.