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4 Ways to Reduce Effects of Blue Light

  1. Talk to your doctor about blue light blocking glasses

  2. Turn on night-mode on your phone at least 1 hour before bed

  3. Follow the 20-20-20 rule to reduce digital eye strain. Take a 20-second break to view something 20 feet away every 20 minutes.

  4. Control lighting and glare on the device screen, set up a good working distance and posture for screen viewing. Be sure that even minor vision problems are properly corrected.


What is blue light?

Blue light is a portion of the visible light spectrum that the human eye can perceive. It has the shortest wavelength and the maximum energy.

The most common source of blue light is sunlight. Fluorescent light, compact fluorescent light (CFL) bulbs, LEDs, flat screen LED televisions, computer displays, smart phones, and tablet screens are all artificial sources of blue light.

Research has shown that exposure to artificial blue light can affect sleep patterns, cause eye strain, and potentially impact the health of the retina. The amount of exposure is related to the distance from the device (more energy from a phone compared to the television).