<prompt> Percentage of endothelial loss in Descemets stripping automated endothelial keratoplasty510 - 2030 - 4050 - 60  <response>: Ans. c 30 - 40Ref: Cornea: July 2007- Volume 26 - Issue 6 p. 670 - 674Reported mean endothelial cell loss usually at 6 months post op varies from 24-59 with standard deviations across the studies. 