Table 3.
Retinal thickness measurements from OCT
| Parameter | HC (n = 14), mean ± SD | Min–max | SCA-PRKCG (n = 12), mean ± SD | Min–max | p GEE |
|---|---|---|---|---|---|
| Peripapillary ring scan | |||||
| Average pRNFL (μm) | 100.0 ± 6.3 | 89–114 | 101.8 ± 8.1 | 86–114 | 0.507 |
| Superior pRNFL (μm) | 117.1 ± 11.9 | 97–146 | 121.25 ± 15.4 | 92–151 | 0.369 |
| Temporal pRNFL (μm) | 72.0 ± 10.5 | 54–98 | 69.1 ± 13.3 | 52–112 | 0.455 |
| Inferior pRNFL (μm) | 130.1 ± 9.8 | 113–150 | 138.25 ± 16.0 | 115–178 | 0.082 |
| Nasal pRNFL (μm) | 80.8 ± 11.3 | 61–103 | 78.8 ± 12.0 | 54–104 | 0.606 |
| RNFL-PMB (μm) | 55.5 ± 7.0 | 44–69 | 53.3 ± 9.3 | 41–82 | 0.403 |
| N/T ratio | 1.15 ± 0.24 | 0.62–1.72 | 1.19 ± 0.33 | 0.62–1.77 | 0.635 |
| Macular volume scan | |||||
| TMV (mm3) | 8.75 ± 0.18 | 8.40–9.11 | 8.81 ± 0.31 | 8.00–9.38 | 0.594 |
| mRNFL (μm) | 36.7 ± 3.1 | 30.1–41.7 | 34.8 ± 2.8 | 30.1–39.3 | 0.085 |
| GCIPL (μm) | 70.0 ± 3.6 | 63.0–74.6 | 72.3 ± 6.2 | 61.9–84.5 | 0.263 |
| INL (μm) | 33.3 ± 2.3 | 29.7–38.6 | 34.3 ± 2.8 | 30.1–42.4 | 0.313 |
| ORL (μm) | 169.6 ± 6.9 | 156.3–183.2 | 170.1 ± 5.8 | 158.1–177.9 | 0.834 |
Values for both groups are mean ± standard deviation
GCIPL ganglion cell and inner plexiform layer, INL inner nuclear layer, mRNFL macular retinal nerve fiber layer, N/T ratio nasal to temporal ratio, OCT optical coherence tomography, ORL outer retinal layers from outer plexiform layer to Bruch’s membrane, PMB papillomacular bundle, pRNFL peripapillary retinal nerve fiber layer, SD standard deviation, TMV total macular volume