The guidelines are the culmination of two years of research and analysis by a multidisciplinary professional panel representing the ACS and AGS, as well as by expert representatives from a variety of medical specialties. ‘The major objective of these guidelines is to help surgeons and the complete perioperative care team enhance the quality of surgical care for elderly individuals,’ said Clifford Y. Ko, MD, FACS, Director of the ACS National Surgical Quality Improvement Program and the ACS Division of Research and Optimal Patient Treatment in Chicago, professor of medical procedures at University of California, LA and director of UCLA’s Center for Surgical Outcomes and Quality. One of the driving forces behind the rules is America’s growing geriatric popu – lation, Dr. Ko described.Twenty-eight individuals had undergone a single unsuccessful keratoplasty, and 20 had undergone multiple unsuccessful keratoplasties. Before this study, corrected visible acuity was significantly less than 0 optimally.1 in 88.5 percent of the patients and was 0.1 to 0.5 in 11.5 percent of the patients. The baseline top features of the patients, including diagnoses and grading of limbal stem-cell insufficiency, are provided in the Supplementary Appendix. Grafts A total of 125 cultures were grafted in 113 eyes between July 1998 and December 2007.