“Effects of Light on Melatonin and Contractions in Pregnant Women”
Specific Aim: Test the hypothesis that ocular light exposure will suppress melatonin secretion and reduce uterine contractions in women at late term pregnancies. Secondary aim. Test the hypothesis that ocular light exposure will reduce self-reported uterine contractions in women at late term pregnancies.
Device - Lighting1
Ocular light exposure to a red wavelength light for one or two nights
Device - Lighting2
Ocular light exposure to a blue/green wavelength light for one night
Lighting3
Ocular light exposure to a red wavelength light (Device 1) on night 1 and to a blue/green wavelength light (Device 2) for on night 2
Effects of Light on Melatonin and Contractions in Pregnant Women
NCT01863446
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