News Sulfur Hexafluoride Use in DMEK Safe to 3 Years by Medscape • 2015/10/08 • 0 Comments Use of 20% sulphur hexafluoride for tamponade instead of 100% air in Descemet's membrane endothelial keratoplasty led to similar patient outcomes but fewer graft detachments. Medscape Medical News Full Story →