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Blue-Depleted White LED
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Illuminance
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Baseline (arb. unit)
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Phasic max constriction (%)
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Sustained constriction (%)
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Constriction Slope (%/s)
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Dilation Slope (%/s)
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PIPR 6 s (%)
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32 lx
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0.46 ± 0.072
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−64 ± 5.8
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−56 ± 4.2
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− 8.2 ± 2.3
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7.7 ± 1.0*
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− 11 ± 6.7*
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100 lx
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0.43 ± 0.095
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−63 ± 8.3
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−54 ± 6.8
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− 8.5 ± 3.5
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7.1 ± 4.1
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− 10 ± 13
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140 lx
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0.48 ± 0.056
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− 67 ± 5.8
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− 60 ± 4.7
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−8.5 ± 2.1
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6.4 ± 3.2
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−19 ± 18
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Standard White LED
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Illuminance
|
Baseline (arb. unit)
|
Phasic max constriction (%)
|
Sustained constriction (%)
|
Constriction Slope (%/s)
|
Dilation Slope (%/s)
|
PIPR 6 s (%)
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32 lx
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0.45 ± 0.087
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−62 ± 10
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− 53 ± 11
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− 7.2 ± 2.5
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4.9 ± 1.8
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−20 ± 3.5
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100 lx
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0.45 ± 0.097
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− 65 ± 4.3
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−57 ± 3.3
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−9.2 ± 2.1
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7.8 ± 2.8
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−10 ± 11
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140 lx
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0.45 ± 0.094
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−66 ± 4.5
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−57 ± 6.5
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−7.8 ± 2.3
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5.1 ± 2.7
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−23 ± 16
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- Comparison of pupil responses to two different lamps – a blue-depleted white LED (top) and a standard white LED (bottom) – to three different illuminances of light. Light-induced changes in pupil size were normalized to percent of baseline pupil size. *p < 0.05 using a paired Student t-test. Data are presented as mean ± SD
