1. From the Laboratory Biology, Engineering, and Imaging of Corneal Graft, Faculty of Medicine, Saint E´tienne, France;
2. Centre of Medical Engineering, E´cole Nationale Supe´rieure des Mines de Saint-Etienne, Saint E´tienne, France;
3. French Blood Center/Eye Bank of Saint E´tienne, Saint E´tienne, France; and
4. French Blood Centre/Eye Bank of Grenoble, Saint Ismier, France.