Table 2.
Mean (± standard deviation) thickness of the 10 retinal layers in the foveal, parafoveal and perifoveal regions, and comparison with other studys
| Study | Year | Sample | OCT instrument | Regions | Parameters | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Retina (μm) | RNFL (μm) | GCL (μm) | IPL (μm) | INL (μm) | OPL (μm) | ONL (μm) | RPE (μm) | IRL (μm) | PRL (μm) | |||||
| The Beijing Eye Study 2011 | 2018 | 384 | Spectralis | Fovea | 259.8 ± 18.9 | – | – | – | – | 19.4 ± 3.9 | 93.4 ± 9.6 | 17.6 ± 1.9 | 169.8 ± 18.6 | 90.0 ± 4.2 |
| Parafovea | 334.8 ± 16.1 | 23.0 ± 2.0 | 49.4 ± 5.6 | 40.2 ± 3.5 | 39.6 ± 3.4 | 30.2 ± 2.2 | 71.3 ± 7.1 | 15.5 ± 1.4 | 253.7 ± 15.3 | 81.1 ± 2.8 | ||||
| Perifovea | 294.0 ± 14.0 | 37.0 ± 4.0 | 36.3 ± 3.4 | 29.4 ± 2.5 | 32.4 ± 2.3 | 27.4 ± 1.8 | 54.2 ± 6.2 | 13.7 ± 1.0 | 216.7 ± 13.2 | 77.3 ± 2.2 | ||||
| Appukuttan B [18] | 2013 | 105 | Spectralis | Fovea | 260.1 ± 18.2 | |||||||||
| Parafovea | 334.3 ± 16.9 | |||||||||||||
| Perifovea | 293.2 ± 14.3 | |||||||||||||
| Tewari HK [19] | 2004 | 170 | Stratus | fovea | 181.2 ± 18.4 | |||||||||
| Gella L [20] | 2015 | 58 | Copernicus | Central fovea | 180.0 ± 18 | 65.5 ± 4.2 | ||||||||
| Demirkaya N [21] | 2013 | 120 | Topcon | Fovea | – | – | – | – | 24.4 ± 5.1 | – | 18.3 ± 2.4 | – | 48.6 ± 3.9 | |
| Parafovea | 23.1 ± 1.8 | 50.6 ± 5.6 | 40.7 ± 3.3 | 39.6 ± 3.2 | 29.0 ± 3.5 | – | 18.2 ± 1.9 | – | 42.6 ± 3.6 | |||||
| perifovea | 35.4 ± 3.8 | 28.5 ± 3.0 | 37.0 ± 2.9 | 30.9 ± 2.5 | 25.2 ± 1.8 | – | 19.6 ± 1.8 | – | 38.4 ± 2.9 | |||||
| Loduca AL [11] | 2010 | 15 | Spectralis | Fovea | 4 ± 3 | 23 ± 3 | 38 ± 7 | |||||||
RNFL Retinal Nerve Fiber Layer; GCL Ganglion Cell Layer; IPL Inner Plexiform Layer; INL Inner Nuclear Layer; OPL Outer Plexiform Layer; ONL Outer Nuclear Layer; RPE Retinal Pigment Epithelium; IRL Inner Retinal Layer; PRL Photoreceptor Layer;