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Delay in the melatonin rhythm following moderate to high intensity light exposure
| Intensity of Light (lux) | N | DLMO 50% (hours ± SD) | DLMOff 50% (hours ± SD) |
|---|---|---|---|
| 2000 | 16 | −0.68 ± 0.97 | −0.61 ± 1.24 |
| 4000 | 20 | −0.91 ± 1.30 | −0.54 ± 0.99 |
| 8000 | 20 | −0.84 ± 1.67 | −0.56 ± 1.05 |
