Table 2.
Average, SD and range of parameter values to standard and additional stimuli (b:a ratios given in italics)
| Stimulus type | Stimulus strength (cd/m2 s) | Parameter | Right eye | Left eye | ||||||||||||
| Mean | SD | Median | Min | Max | 2.5th percentile | 97.5th percentile | Mean | SD | Median | Min | Max | 2.5th percentile | 97.5th percentile | |||
| Standard dark-adapted flashes (LED) | 3.0 | a-wave (µV) | 145.23 | 37.91 | 140.70 | 66.81 | 274.70 | 81.75 | 229.90 | 147.28 | 32.84 | 145.10 | 74.44 | 239.30 | 96.08 | 221.40 |
| b-wave (µV) | 264.03 | 62.81 | 253.00 | 150.90 | 490.60 | 165.10 | 404.10 | 263.89 | 58.89 | 256.60 | 141.90 | 478.60 | 172.00 | 397.90 | ||
| b:a ratio | 1.86 | 0.33 | 1.81 | 1.12 | 3.25 | 1.33 | 2.64 | 1.81 | 0.29 | 1.79 | 1.13 | 2.81 | 1.30 | 2.52 | ||
| 10 | a-wave (µV) | 171.58 | 41.96 | 167.25 | 88.46 | 318.70 | 100.80 | 263.90 | 174.61 | 36.02 | 170.85 | 93.32 | 278.30 | 117.20 | 258.40 | |
| b-wave (µV) | 273.82 | 61.98 | 262.60 | 149.90 | 489.60 | 178.90 | 405.60 | 274.44 | 58.68 | 268.25 | 149.70 | 498.80 | 182.30 | 404.70 | ||
| b:a ratio | 1.62 | 0.25 | 1.60 | 1.15 | 2.66 | 1.20 | 2.30 | 1.58 | 0.23 | 1.57 | 1.04 | 2.36 | 1.19 | 2.10 | ||
| Additional xenon flashes | 0.67 | a-wave (µV) | 48.06 | 19.43 | 44.37 | 13.36 | 118.39 | 19.42 | 90.05 | 48.87 | 17.87 | 45.51 | 15.36 | 112.20 | 22.33 | 94.47 |
| b-wave (µV) | 202.71 | 50.12 | 198.68 | 106.41 | 401.41 | 120.61 | 316.70 | 203.56 | 48.64 | 201.60 | 99.66 | 364.72 | 122.06 | 307.47 | ||
| b:a ratio | 4.66 | 1.61 | 4.26 | 2.21 | 13.15 | 2.72 | 8.85 | 4.50 | 1.37 | 4.24 | 2.37 | 11.69 | 2.54 | 7.47 | ||
| 4.0 | a-wave (µV) | 129.04 | 36.87 | 124.85 | 32.96 | 234.10 | 71.86 | 214.21 | 130.48 | 33.41 | 126.81 | 29.89 | 227.00 | 76.66 | 199.87 | |
| b-wave (µV) | 251.40 | 59.04 | 245.63 | 122.87 | 465.41 | 157.74 | 363.89 | 250.55 | 55.39 | 248.36 | 127.96 | 409.48 | 158.96 | 373.67 | ||
| b:a ratio | 2.03 | 0.50 | 1.96 | 1.22 | 6.25 | 1.32 | 3.20 | 1.98 | 0.50 | 1.95 | 1.16 | 6.93 | 1.40 | 3.01 | ||
| 13 | a-wave (µV) | 161.41 | 41.25 | 155.52 | 84.71 | 286.80 | 98.58 | 251.68 | 163.29 | 36.96 | 158.31 | 77.96 | 270.32 | 104.09 | 243.15 | |
| b-wave (µV) | 267.13 | 60.14 | 264.01 | 155.42 | 489.81 | 173.35 | 387.96 | 264.59 | 56.49 | 261.46 | 151.83 | 436.33 | 169.30 | 380.20 | ||
| b:a ratio | 1.69 | 0.27 | 1.66 | 1.15 | 2.76 | 1.23 | 2.32 | 1.64 | 0.26 | 1.63 | 1.10 | 2.68 | 1.18 | 2.28 | ||
| 67 | a-wave (µV) | 188.56 | 43.77 | 180.65 | 101.88 | 327.04 | 126.25 | 294.08 | 190.24 | 37.47 | 185.77 | 120.58 | 301.72 | 131.09 | 274.69 | |
| b-wave (µV) | 276.16 | 62.71 | 269.95 | 151.48 | 504.27 | 176.69 | 391.41 | 276.16 | 57.50 | 272.46 | 150.38 | 451.70 | 172.95 | 405.85 | ||
| b:a ratio | 1.48 | 0.22 | 1.47 | 0.90 | 2.32 | 1.09 | 2.00 | 1.46 | 0.21 | 1.46 | 0.86 | 2.17 | 1.08 | 1.92 | ||
The 2.5th and 97.5th percentile are also given to provide a possible reference range, encompassing the central 95% of the data.