image analysis of photographs of trypan blue- and alizarin red-stained corneal buttons after trephining , stretching of descemet 's membrane , rubbing against iris-lens preparations , or immediately after penetrating keratoplasty demonstrated that the stretching of the posterior cornea is an important cause of endothelial damage that would not be protected against by a viscoelastic coating .
C0010031
corneal
C0011665
descemet 's