Table 2.
Clinical results of the implantation of ICRS using the ANN and the manufacturer’s nomogram
| Variables | Pre-op | Post-op | P value | |
|---|---|---|---|---|
| ANN group | UDVA [Decimal value (LogMAR)] |
0.17 ± 0.14 (0.77) |
0.37 ± 0.21 (0.43) |
p = 0.001 |
| CDVA [Decimal value (LogMAR)] |
0.60 ± 0.23 (0.22) |
0.73 ± 0.21 (0.14) |
p < 0.005 | |
| SE (D) | −3.89 ± 3.66 | −2.58 ± 2.40 | p < 0.05 | |
| Sim-K1 (D) | 45.58 ± 4.05 | 43.71 ± 4.27 | p < 0.001 | |
| Sim-K2 (D) | 49.80 ± 3.96 | 47.13 ± 4.56 | p = 0.001 | |
| Sim-K Avg (D) | 47.56 ± 3.84 | 45.33 ± 4.32 | p < 0.001 | |
| CCT (μm) | 474.20 ± 40.93 | 472.90 ± 48.44 | p > 0.05 | |
| ThkMin (μm) | 457.95 ± 43.75 | 442.05 ± 49.05 | p < 0.01 | |
| Corneal volume (mm3) | 54.30 ± 2.92 | 55.17 ± 3.25 | p < 0.05 | |
| Total aberrations (μm) | 5.36 ± 2.57 | 4.91 ± 2.76 | p > 0.05 | |
| High Order aberrations (μm) | 3.69 ± 2.09 | 3.34 ± 1.93 | p > 0.05 | |
| Astigmatism aberrations (μm) | 3.62 ± 2.37 | 3.47 ± 2.31 | p > 0.05 | |
| Coma-like aberrations (μm) | 3.56 ± 2.08 | 2.71 ± 1.48 | p < 0.05 | |
| Spherical-like aberrations (μm) | 0.93 ± 0.35 | 1.84 ± 1.41 | p < 0.005 | |
| Nomogram group | UDVA [Decimal value (LogMAR)] |
0.12 ± 0.11 (0.92) |
0.36 ± 0.23 (0.44) |
p < 0.001 |
| CDVA [Decimal value (LogMAR)] |
0.54 ± 0.19 (0.27) |
0.62 ± 0.19 (0.21) |
p < 0.01 | |
| SE (D) | −4.96 ± 4.16 | −1.80 ± 2.48 | p = 0.001 | |
| Sim-K1 (D) | 44.37 ± 4.79 | 43.15 ± 4.29 | p > 0.05 | |
| Sim-K2 (D) | 48.95 ± 5.48 | 45.98 ± 4.44 | p < 0.001 | |
| Sim-K Avg (D) | 46.50 ± 4.84 | 44.98 ± 5.32 | p < 0.005 | |
| CCT (μm) | 457 ± 55.50 | 453.45 ± 57.25 | p > 0.05 | |
| ThkMin (μm) | 443.55 ± 54.72 | 431.95 ± 56.43 | p < 0.05 | |
| Corneal volume (mm3) | 53.40 ± 3.47 | 53.46 ± 4.43 | p > 0.05 | |
| Total aberrations (μm) | 5.66 ± 3.54 | 4.39 ± 2.76 | p < 0.05 | |
| High Order aberrations (μm) | 3.30 ± 2.18 | 3.42 ± 2.23 | p > 0.05 | |
| Astigmatism aberrations (μm) | 4.16 ± 3.43 | 2.36 ± 2.18 | p < 0.005 | |
| Coma-like aberrations (μm) | 3.10 ± 2.13 | 2.93 ± 2.20 | p > 0.05 | |
| Spherical-like aberrations (μm) | 1.05 ± 0.67 | 1.58 ± 0.89 | p < 0.005 |
Preoperatively, the ANN group and the nomogram group do not differ significantly in any of the parameters evaluated (p > 0.05). Postoperatively, the ANN group and the nomogram group differed significantly in CDVA (p < 0.05). Visual acuity is expressed in decimal value and the corresponding LogMAR value is reported in brackets