The Effects of Blue Light

by | Sep 21, 2018 | Eye Health News | 0 comments

blue light

Every time we look at a digital screen, we are exposing our eyes to blue light. The reason why doctors recommend limiting the time you spend looking at a screen is because too much exposure to blue light may negatively affect your vision.

Though a large amount of blue light is emitted from natural sunlight, what’s more concerning is that people stare into their smartphones or other handheld devices for hours at a time and that device is usually only held a couple inches, at most, away from their face.

This kind of exposure to blue light will eventually take its toll on your eyes.

The most effects are felt when blue light passes through your cornea and lens to reach the eye’s retina. The effects of exposing yourself to blue light from common sources, such as smartphones, tablets, and other screened devices whether portable or non-portable, include:

  • Disrupting the circadian rhythm
  • Greater risk of certain types of cancers, diabetes, heart disease, and obesity
  • Increased risk of depression
  • Permanent eye damage
  • Age-Related Macular Degeneration (ARMD)

People usually assume that the actual screen of the device is harmful, often adjusting the brightness, but it is the blue light emanating from the screen that can be damaging to the eye and your health.

Even though long, intense exposure to blue light is frowned upon, it is also known to have some beneficial effects as well. Some reports have shown that it can help enhance alertness, improve memory and cognitive function, and elevate moods.

It is important, however, to be aware of the effects of blue light, so that you can take the proper precautions, like using devices sparingly and not so close to your face, to prevent your eyes from becoming permanently damaged.

Whether you need to schedule an annual eye exam or require surgical vision correction to treat cataracts, you can always expect to receive compassionate, comprehensive care at Eye Physicians of North Houston. Contact us today at (281) 893-1760 for more information or to schedule an appointment with one of our doctors.