GCL–IPL layer thickness and photoreceptor layer thickness in preterm children and full-term controls
| Preterm | Full-term | p Value | |
| Mean (SEM) | Mean (SEM) | ||
| GCL–IPL thickness (μm) | |||
| 0 μm | 21.1 (4.5) | 4.3 (2.6) | <0.0001 |
| 400 μm | 61.0 (4.9) | 44.2 (3.0) | <0.0001 |
| 800 μm | 77.6 (9.1) | 86.0 (2.7) | >0.05 |
| 2000 μm | 77.1 (8.8) | 86.6 (2.5) | >0.05 |
| Photoreceptor IS thickness (μm) | |||
| 0 μm | 30.4 (0.9) | 30.9 (0.9) | >0.05 |
| 400 μm | 30.9 (1.2) | 33.2 (1.3) | >0.05 |
| 800 μm | 27.5 (1.1) | 29.9 (0.9) | >0.05 |
| 2000 μm | 24.2 (0.8) | 24.4 (0.9) | >0.05 |
| Photoreceptor OS thickness (μm) | |||
| 0 μm | 50.9 (2.6) | 49.9 (2.1) | >0.05 |
| 400 μm | 38.4 (1.5) | 38.0 (1.5) | >0.05 |
| 800 μm | 36.0 (1.8) | 37.0 (1.3) | >0.05 |
| 2000 μm | 30.0 (1.7) | 31.8 (1.2) | >0.05 |
GCL, ganglion cell layer; IPL, inner plexiform layer; IS, photoreceptor inner segments; OS, photoreceptor outer segments.