Table 2.
Correlations between icVEP-SNR and related factors for patients with OAG
| Variables | Mean ± SD (n = 37) | r | Statistical value* | P |
|---|---|---|---|---|
| SAP-MD (dB) | −3.85 ± 1.26 | 0.068 | 0.153 | 0.367 |
| SAP-MD of the other eye (dB) | −5.19 ± 4.08 | −0.016 | −0.118 | 0.488 |
| OCT-thickness change in RNFL (μm) | ||||
| Temporal superior quadrant | −37.40 ± 31.70 | 0.007 | 0.363 | 0.032 |
| Temporal inferior quadrant | −47.74 ± 29.22 | −0.030 | −0.151 | 0.388 |
| Baseline IOP (mmHg) | 15.78 ± 2.84 | −0.040 | −0.203 | 0.228 |
| CCT (μm) | 525.74 ± 26.03 | 0.002 | 0.083 | 0.657 |
*Pearson correlation test. 1 mmHg = 0.133 kPa. CCT: Central corneal thickness; icVEP: Isolated-check visual evoked potential; IOP: Intraocular pressure; MD: Mean deviation; OCT: Optical coherence tomography; RNFL: Retinal nerve fiber layer; SAP: Standard automated perimetry (HFA 30-2 SITA); SNR: Signal-to-noise ratio; HFA: Humphrey Field Analyzer; SD: Standard deviation.