Table 2

Average, SD and range of parameter values to standard and additional stimuli (b:a ratios given in italics)

Stimulus typeStimulus strength (cd/m2 s)ParameterRight eyeLeft eye
MeanSDMedianMinMax2.5th percentile97.5th percentileMeanSDMedianMinMax2.5th percentile97.5th percentile
Standard dark-adapted flashes (LED)3.0a-wave (µV)145.2337.91140.7066.81274.7081.75229.90147.2832.84145.1074.44239.3096.08221.40
b-wave (µV)264.0362.81253.00150.90490.60165.10404.10263.8958.89256.60141.90478.60172.00397.90
b:a ratio1.860.331.811.123.251.332.641.810.291.791.132.811.302.52
10a-wave (µV)171.5841.96167.2588.46318.70100.80263.90174.6136.02170.8593.32278.30117.20258.40
b-wave (µV)273.8261.98262.60149.90489.60178.90405.60274.4458.68268.25149.70498.80182.30404.70
b:a ratio1.620.251.601.152.661.202.301.580.231.571.042.361.192.10
Additional xenon flashes0.67a-wave (µV)48.0619.4344.3713.36118.3919.4290.0548.8717.8745.5115.36112.2022.3394.47
b-wave (µV)202.7150.12198.68106.41401.41120.61316.70203.5648.64201.6099.66364.72122.06307.47
b:a ratio4.661.614.262.2113.152.728.854.501.374.242.3711.692.547.47
4.0a-wave (µV)129.0436.87124.8532.96234.1071.86214.21130.4833.41126.8129.89227.0076.66199.87
b-wave (µV)251.4059.04245.63122.87465.41157.74363.89250.5555.39248.36127.96409.48158.96373.67
b:a ratio2.030.501.961.226.251.323.201.980.501.951.166.931.403.01
13a-wave (µV)161.4141.25155.5284.71286.8098.58251.68163.2936.96158.3177.96270.32104.09243.15
b-wave (µV)267.1360.14264.01155.42489.81173.35387.96264.5956.49261.46151.83436.33169.30380.20
b:a ratio1.690.271.661.152.761.232.321.640.261.631.102.681.182.28
67a-wave (µV)188.5643.77180.65101.88327.04126.25294.08190.2437.47185.77120.58301.72131.09274.69
b-wave (µV)276.1662.71269.95151.48504.27176.69391.41276.1657.50272.46150.38451.70172.95405.85
b:a ratio1.480.221.470.902.321.092.001.460.211.460.862.171.081.92
  • The 2.5th and 97.5th percentile are also given to provide a possible reference range, encompassing the central 95% of the data.