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Table 2 Photometrical measures of the light exposures

From: Impact of a single, short morning bright light exposure on tryptophan pathways and visuo- and sensorimotor performance: a crossover study

Photometrical measures [unit]

Office light (OL)

Bright light (BL)

Corneal intensity-related measures

 Photopic illuminance [lux]

150 ± 32

5000 ± 455

 Irradiance [μW/cm2]

59.18

1972.53

 Photon flux [1/cm2/s]

1.61 × 1014

5.37 × 1015

Photopigment-related measures (α-opic lux) [34] at mean illuminance levels

 Cyanopic illuminance [lux]

160.73

5357.65

 Melanopic illuminance [lux]

152.88

5096.14

 Rhodopic illuminance [lux]

154.17

5138.83

 Chloropic illuminance [lux]

153.19

5106.38

 Erythropic illuminance [lux]

147.36

4912.04

  1. Illuminance values: mean ± standard deviation