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Table 3 Mean value and standard deviation for PLR parameters in dependence of red or blue light exposure during the PLR measurements

From: The pupillary light reflex (PLR) as a marker for the ability to work or drive – a feasibility study

 

Flashgroup 1: red light

Flashgroup 2: blue light

Endpoint (mean, SD)

Base-line

Sleep deprivation

Alcohol exposure

p-value*

Base-line

Sleep deprivation

Alcohol exposure

p-value*

Initial diameter (pix)

251.55 (51.17)

253.63 (57.55)

254.19 (54.61)

0.64

233.91 (43.04)

234.69 (47.45)

235.63 (45.64)

0.78

Latency (ms)

223.79 (24.05)

226.38 (25.01)

222.48 (22.19)

< 0.05

228.71 (20.5)

227.46 (19.69)

226.95 (19.33)

0.09

Acceleration (ms)

244.13 (29.36)

246.2 (31.25)

244.99 (29.79)

0.33

255.27 (28.36)

255.59 (29.56)

255.64 (28.61)

0.86

Contraction velocity (pix/ms)

0.1061 (0.025)

0.1081 (0.029)

0.1091 (0.026)

< 0.05

0.088 (0.022)

0.089 (0.024)

0.087 (0.022)

< 0.05

Quarter dilatation velocity (pix/ms)

0.069 (0.015)

0.068 (0.016)

0.069 (0.015)

0.13

0.064 (0.014)

0.064 (0.015)

0.063 (0.014)

< 0.05

Half dilatation time (ms)

451.06 (104.02)

482.92 (116.76)

483.09 (115.02)

< 0.05

360.5 (59.52)

374.21 (61.07)

367.33 (54.23)

< 0.05

Line integral

3524.51 (7.26)

3535.35 (8.05)

3525.08 (7.27)

0.05

3524.51 (7.26)

3535.35 (8.05)

3525.08 (7.27)

0.05

  1. *One-way ANOVA