Table 2.
Postoperative results at the 12-month follow-up after UT-DSAEK and DMEK
| UT-DSAEK | DMEK | p | |
|---|---|---|---|
| BCVA (logMAR) | 0.10 ± 0.04 | 0.07 ± 0.07 | 0.24 |
| Objective refraction (sphere, D) | 0.92 ± 0.40 | 0.56 ± 0.17 | 0.001** |
| Objective refraction (cyl, D) | −1.12 ± 0.55 | −1.00 ± 0.34 | 0.45 |
| Subjective refraction (sphere, D) | 0.56 ± 0.47 | 0.29 ± 0.25 | 0.07 |
| Subjective refraction (cyl, D) | −0.62 ± 0.67 | −0.62 ± 0.52 | 0.82 |
| Spherical Equivalent (D) | 0.25 ± 0.39 | − 0.01 ± 0.33 | 0.07 |
| Sim K1 (D) | 43.42 ± 0.67 | 43.51 ± 0.96 | 0.14 |
| Sim K2 (D) | 44.39 ± 0.85 | 44.30 ± 0.97 | 0.77 |
| Avg (D) | 43.90 ± 0.75 | 43.91 ± 0.95 | 0.67 |
| Cyl total (D) | −0.98 ± 0.27 | −0.79 ± 0.30 | 0.11 |
| Corneal pachymetry (μm) | 570.38 ± 21.96 | 516.29 ± 33.52 | < 0.001** |
| Graft central thickness (μm) | 77.85 ± 22.02 | – | – |
| Graft peripheral thickness (μm) | 107.46 ± 28.32 | – | – |
| ECD (cell/mm2) | 1772.62 ± 185.59 | 1590.94 ± 136.87 | 0.10 |
P value was assessed by the Wilcoxon signed rank test (non-parametric); UT-DSAEK= ultra-thin Descemet stripping automated endothelial keratoplasty; DMEK= Descemet membrane endothelial keratoplasty; BCVA= best corrected visual acuity; logMAR= logarithm of the minimal angle of resolution; SIMK= K-value of simulated keratometry; Avg= average; Cyl= cylinder; D= diopters; ECD= endothelial cell density. Data are presented as mean ± standard deviation (SD). **p < 0.01