Table 2 Comparison of preoperative and postoperative visual acuity, refraction, and keratometry readings between eyes that underwent laser in situ keratomileusis versus Artisan lens implantation for the management of refractive error after penetrating keratoplasty for keratoconus
Parameters | LASIK group | Artisan group | P value (between group comparison) | |
|---|---|---|---|---|
UDVA (LogMAR) | Preoperative | 1.20 ± 0.32 (0.60 to 1.60) | 1.48 ± 0.16 (1.30 to 1.70) | 0.04 |
Postoperative | 0.92 ± 0.47 (0.40 to 1.60) | 0.34 ± 0.17 (0.18 to 0.60) | 0.007 | |
P value | 0.42 | 0.001 | ||
CDVA (LogMAR) | Preoperative | 0.15 ± 0.10 (0.0 to 0.40) | 0.24 ± 0.08 (0.08 to 0.30) | 0.009 |
Postoperative | 0.22 ± 0.10 (0.10 to 0.40) | 0.21 ± 0.08 (0.10 to 0.40) | 0.72 | |
P value | 0.04 | 0.24 | ||
Spherical equivalent (D) | Preoperative | −6.97 ± 1.50 (−9.25 to −4.0) | −10.79 ± 2.15 (−14.0 to − 6.75) | < 0.001 |
Postoperative | −4.20 ± 2.05 (− 9.25 to −2.0) | −2.13 ± 1.23 (− 4.25 to −0.38) | 0.001 | |
P value | < 0.001 | < 0.001 | ||
Refractive astigmatism (D) | Preoperative | −3.41 ± 1.74 (−6.0 to 0.0) | −2.71 ± 1.51 (− 4.0 to 0.0) | 0.03 |
Postoperative | −4.28 ± 2.07 (−9.0 to −1.0) | −2.28 ± 1.50 (− 4.0 to 0.0) | 0.003 | |
P value | 0.30 | 0.11 | ||
Mean keratometry (D) | Preoperative | 46.91 ± 1.35 (45.0 to 49.0) | 47.77 ± 2.94 (42.5 to 48.0) | 0.34 |
Postoperative | 44.70 ± 2.62 (39.50 to 47.96) | 46.55 ± 1.47 (44.0 to 47.75) | 0.17 | |
P value | 0.002 | 0.15 | ||
Keratometric astigmatism (D) | Preoperative | 2.94 ± 1.21 (1.50 to 5.07) | 1.62 ± 1.84 (0.0 to 5.81) | 0.04 |
Postoperative | 5.34 ± 2.18 (2.50 to 8.48) | 2.70 ± 2.97 (1.0 to 6.50) | 0.03 | |
P value | 0.01 | 0.66 | ||