Smartphone and Computer Blue Light Can Accelerate Blindness

Smartphone and Computer Blue Light Can Accelerate Blindness

blue light

Blue light from your smartphones and laptops can accelerate blindness, according to a new study.

Researchers from the University of Toledo say long periods of time exposed to blue light, the kind phones, tablets and televisions give off, can damage vision and generate poisonous molecules in the eye’s light-sensitive cells. The researchers suggest this could accelerate macular degeneration and other eye diseases.

Their findings were published on July 5 in Scientific Reports.

In the study, the researchers exposed living cells to various types of light. They found that exposure to blue light triggers “reactions that generate poisonous chemical molecules in photoreceptor cells,” the cells in our retina that respond to light.  The group was aiming to understand how cells respond to everyday blue light exposure from devices like phones and TVs, according to a release.

Blue light waves are the among the shortest, highest energy wavelengths in the visible light spectrum.  Because they are shorter, these “Blue” or High Energy Visible (HEV) wavelengths flicker more easily than longer, weaker wavelengths. This kind of flickering creates a glare that can reduce visual contrast and affect sharpness and clarity. 

This flickering and glaring may be one of the reasons for eyestrain, headaches, physical and mental fatigue caused by many hours sitting in front of a computer screen or other electronic device.

What can you do about it?

– If you own an iPhone or iPad –

Turn on Night Shift

There are two ways to turn Night Shift on and off:

  • Open Control Center from your Home screen. Firmly press the Brightness control icon, then tap  to turn Night Shift on or off.
  • Go to Settings > Display & Brightness > Night Shift.2On the same screen, you can schedule a time for Night Shift to turn on automatically and adjust color temperature.

                By default, Night Shift turns on from sunset to sunrise.

-If you own a Mac-

  • First introduced in iOS, Apple brought Night Shift to MacOS in MacOS Sierra in March 2017.As with Windows 10, the feature is easy enough to turn on and configure to your tastes.

    Step 1: Open “System Preferences.”

    Step 2: Select “Displays,” then click on the “Night Shift” tab.

    blue light

– If you own and Android device –

  • There are many free apps in the Google Play Store if you search “Blue Light Filter” that you can customize and use to filter blue light. Click here for our recommendation.

-If you own a Windows 10 Computer –

  • Called “Night light,” this feature shifts the Windows 10 display to show warmer colors that reduce the amount of blue light that’s emitted.
  • Turning the Night light feature on is a simple enough process.
  • Step 1: Open up the settings menu by searching for it in the Windows 10 search box, or press the Windows key and “X” and then click “Settings.”
  • Step 2: Choose “System” from the menu.
  • Step 3: Select “Display” from the left-hand menu if it isn’t already.
  • Step 4: Toggle the “Night light” to on.

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If none of these options sound good to you, you can purchase a pair of yellow or amber tinted glasses to aid your eyes in the filtering of blue light from your computer.

blue light

If you need any assistance with these features or want more information, call the PC Works today at 928-775-5475 or 928-445-6700!