Laboratory analysis of the Lieberman Corneal Punch.
The Lieberman Corneal Punch, an instrument for the trephination of corneal donor tissue, was tested in the laboratory on human corneas preserved in McCarey-Kaufman (M-K) medium. Excellent corneal buttons were produced using 7.5-and 8.0-mm trephine blades, but trephination quality was variable using 8.5 and 9.0 mm blades. Modification of the curvature of the punching well may improve the trephination quality with the larger trephine blades.
D016039:Corneal Transplantation; D006801:Humans; D013523:Surgical Equipment