The object of the present paper is to examine the factors which determine whether or not a piece of cornea grafted from one rabbit on the cornea of another becomes sensitive or remains insensitive—in other words, the factors under which a piece of foreign cornea becomes provided with an afferent nerve supply. A long series of experiments on corneal grafting in rabbits, started in May, 1922, and continued without intermission, has provided ample material. systematic observations on the sensitiveness of these grafts have been carried out since 1925.
Previous Observations
. Elschnig (1930) in a description of his corneal grafts, a proportion of which were clear, says " it is noteworthy that even in the oldest cases of transparent implant observed, complete sensibility has not developed, but as a rule there doss develop a sensibilitv to
heavy
touch."
On the return of Sensitiveness in corneal grafts in rabbits