• Computer Vision Syndrome – Digital Eye Strain

  • What is Computer Vision Syndrome (CVS)?

    Computer Vision Syndrome (CVS) is a temporary condition resulting from focusing the eyes on a computer display for protracted, uninterrupted periods of time.

  • Symptoms of CVS
    • Headaches
    • Blurred Vision
    • Neck Pain
    • Eye Redness
    • General Fatigue
    • Eye Strain
    • Dry Eyes
    • irritated Eyes
    • Double Vision
    • Dizziness
    • Polyopia
    • Difficulty Re-focusing

    These symptoms can be further aggravated by improper lighting conditions (i.e. glare  or bright overhead lighting) or air moving past the eyes (e.g. overhead vents, direct air from a fan). [Source: Wikipedia]

  • This is serious ... did you know that worldwide, up to 70 million workers are at risk for computer vision syndrome, and those numbers are only likely to grow. Working adults aren't the only ones affected. Kids who stare at tablets or use computers during the day at school can have issues, too, especially if the lighting and their posture are less than ideal.

    When you work at a computer, your eyes have to focus and refocus all the time.  They move back and forth as you read. You may have to look down at papers and then back up to type. Your eyes react to changing images on the screen to create so your brain can process what you’re seeing. All these jobs require a lot of effort from your eye muscles. And to make things worse, unlike a book or piece of paper, the screen adds contrast, flicker, and glare.

    You’re more likely to have problems if you already have eye trouble, if you need glasses but don't have them, or if you wear the wrong prescription for computer use. Talk with Wohl Optics about computer glasses. List of professionals at risk — accountants, architects, bankers, engineers, flight controllers, graphic artists, journalists, academicians, secretaries and students — all of whom cannot work without the help of computer.

  • Prevent Computer Vision Syndrome
    • Every 20 minutes of computer use you should spend 20 seconds staring into the distance.
    • Be sure to use a font size best suited to your visual acuity, and have your eye exam regularly — at least once a year — to be sure your prescription is up-to-date. This is especially important for people older than 40 and for children who are heavy users of computers because visual acuity can change with age.
    • Ensure your monitor has a high-resolution display that provides sharper type and crisper images.
    • Clean the monitor often with an anti-static dust cloth.
    • Remember to blink a lot.
    • An anti-glare screen filter limits the amount of light that can be reflected from your computer screen.
    • If your lights are too bright, consider using a lower wattage bulb or installing a dimmer switch. Adjust your blinds throughout the day to reduce the amount of glare-inducing natural light.  The goal is to reduce glare.
    • People who already suffer from a vision condition are more susceptible to computer vision syndrome. Please do not strain your eyes to read rather than use your reading glasses.
    • Make sure your seat position and posture is correct. Viewing angle and distance of 15 to 20 degrees below eye level and 20 to 28 inches away are recommended. The idea is to avoid straining your eyes or neck to see the screen by positioning it at the perfect viewing location.