Research Article
Decreased Retinal Thickness in Type 1 Diabetic Children with Signs of Nonproliferative Diabetic Retinopathy
Table 4
Retinal thickness and volume reference values for each ETDRS sector, calculated with measurements from healthy controls.
| Retinal sector | Percentiles | | 3 | 10 | 25 | 50 | 75 | 90 | 97 | Average ± SD |
| Foveolar thickness (μm) | 165 | 172.5 | 181 | 192 | 205 | 222 | 230 | 194.1 ± 17.9 | Total macular volume (mm3) | 7.07 | 7.26 | 7.42 | 7.60 | 7.76 | 8.06 | 8.20 | 7.62 ± 0.29 | Macular central thickness (μm) | 194.3 | 209 | 217.2 | 229 | 245 | 255 | 267.3 | 230.4 ± 18.7 | Superior inner thickness (μm) | 272.9 | 287 | 295 | 302 | 311 | 318 | 322.3 | 301.8 ± 12.9 | Temporal inner thickness (μm) | 265.3 | 275 | 280 | 289 | 298 | 304 | 310.3 | 288.3 ± 12 | Inferior inner thickness (μm) | 269 | 283 | 289.2 | 297 | 306.7 | 312.5 | 321 | 297.1 ± 12.8 | Nasal inner thickness (μm) | 282 | 289 | 296 | 304 | 312 | 320 | 328.9 | 304 ± 11.7 | Superior outer thickness (μm) | 241.5 | 247.3 | 256 | 263 | 272 | 282.7 | 295 | 264.8 ± 15.8 | Temporal outer thickness (μm) | 213.6 | 233 | 238 | 249 | 256 | 263.6 | 273 | 247.8 ± 13 | Inferior outer thickness (μm) | 238 | 241 | 249 | 256.5 | 263 | 274 | 288.3 | 257.6 ± 12.6 | Nasal outer thickness (μm) | 253.7 | 263.5 | 271 | 280 | 287 | 297 | 307.6 | 279.8 ± 12.8 | Central macular volume (mm3) | 0.15 | 0.16 | 0.17 | 0.18 | 0.19 | 0.20 | 0.21 | 0.18 ± 0.01 | Superior inner volume (mm3) | 0.44 | 0.45 | 0.46 | 0.47 | 0.49 | 0.50 | 0.51 | 0.48 ± 0.08 | Temporal inner volume (mm3) | 0.41 | 0.43 | 0.44 | 0.45 | 0.47 | 0.48 | 0.48 | 0.45 ± 0.03 | Inferior inner volume (mm3) | 0.42 | 0.45 | 0.46 | 0.47 | 0.48 | 0.49 | 0.5 | 0.46 ± 0.02 | Nasal inner volume (mm3) | 0.44 | 0.45 | 0.46 | 0.48 | 0.49 | 0.50 | 0.51 | 0.47 ± 0.02 | Superior outer volume (mm3) | 1.28 | 1.31 | 1.35 | 1.39 | 1.43 | 1.49 | 1.53 | 1.39 ± 0.07 | Temporal outer volume (mm3) | 1.23 | 1.24 | 1.28 | 1.32 | 1.36 | 1.41 | 1.50 | 1.32 ± 0.07 | Inferior outer volume (mm3) | 1.26 | 1.28 | 1.32 | 1.36 | 1.38 | 1.45 | 1.52 | 1.36 ± 0.06 | Nasal outer volume (mm3) | 1.35 | 1.40 | 1.44 | 1.49 | 1.53 | 1.57 | 1.60 | 1.48 ± 0.06 | Total RNFL thickness (μm) | 84.5 | 89 | 92 | 97 | 101 | 106 | 112.4 | 97 ± 6.6 | Superior RNFL thickness (μm) | 102 | 107 | 113 | 119 | 126 | 135 | 143 | 120.1 ± 11.0 | Inferior RNFL thickness (μm) | 98 | 107 | 113 | 120 | 127 | 133 | 138.4 | 119.9 ± 10.4 |
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