The impact of light from computer monitors on melatonin levels in college students

  • Figueiro M
  • Wood B
  • Plitnick B
 et al. 
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Self-luminous electronic devices emit optical radiation at short waveleng-ths, close to the peak sensitivity of melatonin suppression. Melatonin sup-pression resulting from exposure to light at night has been linked to in-creased risk for diseases. Th e impact of luminous cathode ray tube (CRT) computer monitors on melatonin suppression was investigated. Twenty-one participants experienced three test conditions: 1) computer monitor only, 2) computer monitor viewed through goggles providing 40 lux of short-wavelength (blue; peak λ ≈ 470 nm) light at the cornea from light emitting diodes (LEDs), and 3) computer monitor viewed through orange-tinted safety glasses (optical radiation

Author-supplied keywords

  • Light at night
  • Melatonin
  • Self-luminous displays

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