Light therapy for seasonal affective disorder with blue narrow-band light-emitting diodes (LEDs)

G Glickman, B Byrne, C Pineda, WW Hauck… - Biological …, 2006 - Elsevier
BACKGROUND: While light has proven an effective treatment for Seasonal Affective
Disorder (SAD), an optimal wavelength combination has not been determined. Short
wavelength light (blue) has demonstrated potency as a stimulus for acute melatonin
suppression and circadian phase shifting. METHODS: This study tested the efficacy of short
wavelength light therapy for SAD. Blue light emitting diode (LED) units produced 468 nm
light at 607 μW/cm2 (27 nm half-peak bandwidth); dim red LED units provided 654 nm at 34 …