Table 2.
Correlation between the mfVEP upper or lower-ring signal-to-noise ratio and each parameter in study participants
| Parameters | mfVEP upper ring SNR | mfVEP lower ring SNR | |
| Age (y) | Correlation Coefficient | -0.19 | - 0.24 |
| * P-value | 0.230 | 0.130 | |
| SE (D) | Correlation Coefficient | - 0.07 | - 0.05 |
| * P-value | 0.646 | 0.730 | |
| AL (mm) | Correlation Coefficient | - 0.34 | - 0.06 |
| * P-value | 0.984 | 0.690 | |
| BCDVA (logMAR) | Correlation Coefficient | - 0.33 | -0.36 |
| * P-value | 0.038 | 0.024 | |
| IOP (mmHg) | Correlation Coefficient | - 0.34 | - 0.14 |
| * P-value | 0.030 | 0.370 | |
| VF, superior or inferior hemifield | Correlation Coefficient | + 0.34 | + 0.55 |
| * P-value | 0.030 | < 0.001 | |
| RNFLT, inferior or superior quadrant | Correlation Coefficient | + 0.51 | + 0.70 |
| * P-value | < 0.001 | < 0.001 | |
Abbreviations: mfVEP, multifocal visual evoked potential; SNR, signal-to-noise ratio; y, years; SE, spherical equivalent; D, diopters; AL, axial length; mm, millimeters; BCDVA, best-corrected distance visual acuity; logMAR, the logarithm of the minimum angle of resolution; IOP, intraocular pressure; mmHg, millimeter of mercury; VF, visual field; RNFLT, retinal nerve fiber layer thickness.* Spearman correlation; P-value < 0.05 is shown in bold.