Experiments on canine corneal donor material stored in liquid nitrogen.

TECHNIQUES of preserving the cornea including storage at very low temperature or by freeze-drying have proved to be satisfactory for lamellar grafts (King, 1958; Henaff, 1960; Sweebe and Dohlman, 1961). The results of Eastcott and co-workers, of Rycroft, and of Stocker when grafting the full-thickness of corneal donor material stored at low temperatures and by other methods were disappointing (Eastcott, Cross, Leigh, and North, 1954; Rycroft, 1957; Stocker, Matton, Eiring, Georgiade, and Georgiade, 1960).