THE SURFACE COAT ON HUMAN CORNEAL ENDOTHELIUM

Abstract
Scanning electron microscopy of human cadaver corneas revealed a selective binding of ruthenium red-osmium tetroxide to some substance coating the posterior endothelial surface. A coating material was not found on autolyzed cells, on denuded areas of the Descemets membrane or on the anterior surface of endothelial cells. Partial digestion of the coating material by urokinase and trypsin suggests at least 3 different structural or chemical elements.