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Table 1 Mean, median, standard deviation (SD), variance and range for each repeated pupillometric measurement (100 patients) under the four illumination conditions evaluated. S: Scotopic level, L: Low level, M: mesopic level, P: Photopic level

From: Intrasession repeatability of pupil size measurements under different light levels provided by a multidiagnostic device in healthy eyes

  S1 S2 S3 L1 L2 L3 M1 M2 M3 P1 P2 P3
Mean 5.38 5.32 5.33 3.23 3.24 3.23 2.88 2.96 2.93 2.57 2.60 2.60
Median 5.50 5.30 5.35 3.20 3.20 3.10 2.80 2.90 2.85 2.60 2.55 2.60
SD 0.96 0.87 0.90 0.65 0.57 0.59 0.47 0.47 0.49 0.38 0.40 0.38
Variance 0.93 0.76 0.81 0.43 0.33 0.35 0.22 0.22 0.24 0.15 0.16 0.14
Range 4.00 3.80 3.70 2.80 2.90 2.70 2.60 2.90 2.70 2.30 2.50 2.40