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Table 1 Mean choroidal thickness in healthy Egyptians evaluated by the Early Treatment Diabetic Retinopathy Study grid

From: Macular choroidal thickness in normal Egyptians measured by swept source optical coherence tomography

Areas Choroidal thickness (μm)
Mean ± SD Minimum Maximum
Central subfoveal ring 300.87 ± 72.256 157 470
Central subfoveal line 319.72 ± 76.45 152 530
Inferior inner macula 297.67 ± 77.08 129 480
Superior inner macula 306.76 ± 75.05 167 487
Nasal inner macula 282.74 ± 71.33 109 455
Temporal inner macula 293.47 ± 73.86 109 472
Inferior outer macula 279.19 ± 77.60 117 481
Superior outer macula 298.13 ± 73.89 172 467
Nasal outer macula 239.39 ± 73.83 79 430
Temporal outer macula 288.44 ± 73.07 117 475
  1. SD standard deviation