What is blue light?
According to The Vision Council’s 2015 Digital Eye Strain report, over 90% of adults spend more than two hours a day using digital devices, such as smartphones, in addition to the exposure they get from computer and TVs.
Blue light, which is part of the visible light spectrum, reaches deeper into the eye and its cumulative effect can cause damage to the retina. This light is caused by the digital devices we use every day.
Too much blue light can disrupt sleep. Use of digital screens and energy-saving light bulbs at night is believed to suppress the melatonin into the blood stream, which can lead to sleep disorders.
Blue light can cause retinal cell damage. Evidence suggests that ling-term exposure to blue light may contribute to photochemical damage of the retina, known as “blue light hazard.” Blue light exposure can also increase the risk of macular degeneration.
Keep this in mind when you’re at work on a computer or lying in bed watching TV. The 20/20/20 rule helps reduce this risks and protects your eyes.
Source: Eyecare Business Magazine: Vol. 29, No. 7. July 2015