https://www.selleckchem.com/products/a-438079-hcl.html 05). The contrast sensitivity of EDOF IOL was slightly decreased compared to that of monofocal IOL, but it was better than that of bifocal IOL. The EDOF group showed significantly higher satisfaction than the bifocal group did when preoperative corneal astigmatism was 0.75 or greater ( =0.009). A significant negative correlation between the corneal astigmatism and patient satisfaction was observed in only the bifocal group. The EDOF IOLs targeting slight myopia offered satisfactory visual outcomes at an extended range from far to near distances. The EDOF and monofocal IOLs showed a better tolerance to astigmatism than did the bifocal IOL. The EDOF IOLs targeting slight myopia offered satisfactory visual outcomes at an extended range from far to near distances. The EDOF and monofocal IOLs showed a better tolerance to astigmatism than did the bifocal IOL. To compare the corneal biomechanical properties between post-LASIK ectasia and primary keratoconus. A total of 42 eyes of 42 patients with matching age and central corneal thickness (CCT) were divided into two groups according to diagnosis of post-LASIK ectasia (PLE group;  = 21; age range 22-47 years) and primary keratoconus (KC group;  = 21; age range 21-47 years). The corneal biomechanical properties were assessed using Scheimpflug-based technology (Corvis ST; Oculus Optikgeräte, Wetzlar, Germany). The paired -test and linear regression analysis were performed. The PLE group had significantly higher mean stiffness parameter at the first applanation (SP-A1; 76.65 ± 21.66 vs 52.72 ± 13.65, ≤ 0.001) and mean stress-strain index (SSI) (SSI 0.78 ± 0.16 versus 0.64 ± 0.12, =0.001) than the KC group. SP-A1 was positively correlated with CCT in the PLE group (Pearson's  = 0.816, ≤ 0.001), but not in the KC group (Pearson's  = -0.014, =0.952). No statistical correlation was observed between SSI and CCT in either group (Pearson's  = 0.292, =0.199, and Pearson's  = 0.004