Hello Square Eyes – Blue Light Alert

Research has shown that more than a third of adults spend about five hours a day on digital devices that emit blue light. Great for technology, But what about our eyes?

While the digital boom has given us the convenience of mobility and facts at our fingertips, each device is different in size and distance, forcing our eyes to constantly refocus between text and images. That’s just for starters:


Computer Vision Syndrome (CVS) – or digital eye strain is here to stay.
While our eyes are exposed to a variety of visible light rays that affect us in different ways, high energy Blue Light from digital devices is especially hazardous.

The digital devices emitting Blue Light:

  • Flat screen computers
  • Laptops
  • Tablets
  • Smartphones
  • GPS devices
  • LED and LCD televisions


Red and Irritated Eyes:
Aggravated by staring at the bright backlight of screens for a long period of time

Dry Eyes:
The result of reduced blinking rates. Screens set at eye level can also exacerbate drynessEye Fatigue:

Caused by over-exposure to Blue Light and from straining to see small fonts and imagesBlurred Vision:

Can often be due to screen glare and small uncorrected vision errorsSleeplessness:

Can be caused by overexposure to Blue LightHeadaches:

Can be caused by continuous eyestrain

Healthy Eye Habits – By your Vision Works Optometrist

Here are a few easy steps you can take to reduce your risk of computer eyestrain and other common symptoms of CVS:

Time for an Eye Test

  • Tell your optometrist how often you use a computer or digital device
  • Ask your optometrist to help you measure the optimum distance you should keep between your eyes and your computer screen or handheld device

Blue Light Control Coating

  • Special indoor lenses, created strictly for office and computer use, are available at your local Vision Works outlet
  • A special lens coating called a Blue Light Control coating which neutralises the Blue Light emitted by digital screens has been proven to prevent eye fatigue, eye strain and even sleeplessness

Minimise Glare and Reflections

  • Use an anti-glare screen or a glare reduction filter on your monitor
  • Paint bright walls a darker colour with a matte finish
  • Reduce bright exterior light by closing your curtains
  • If you wear glasses, purchase glasses with anti-reflective (AR) coating
  • Clean your screen frequently
  • Increase font size to help better define the content on your screen

Blink or Wink

  • Blinking moistens the eyes and spreads the tear layer over your eye to prevent dryness and irritation. Use an artificial tear to supplement a dry eye

Eye Exercise

  • Look away from your computer at least every 20 minutes and gaze at a distant object at least six metres away for at least 20 seconds

Stop the Blues

A study by École d’Optométrie from the University of Montreal found that:

  • Wearing a lens treated with a blue-light filter coating helped reduce symptoms of eyestrain by half during prolonged computer exposure.
  • After wearing a lens treated with a blue light filter coating, subjects with symptoms of eyestrain due to prolonged computer exposure felt a significant improvement of the following symptoms: dry eyes, sticky eyes, and the feeling of grittiness or “sand” in the eye.

Be sure to visit your local Vision Works for a comprehensive eye test and remember to always Love Your Eyes!