At 1 month postoperatively , the corneal endothelial cell loss rate and hexagonal cell percentage ( postoperative compared to preoperative ) in groups A and B were 0.117 0.12 and 9.97 9.52 % and 0.15 0.73 and 8.5 4.60 % , respectively , with no significant difference noted ( p > 0.05 ) .