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Eranda Wannigama
Computer Vision Syndrome
(Digital Eye Strain)
Overview
• What is Computer vision Syndrome?
• What You will Feel as Computer vision Syndrome?
• What will happen if Computer vision syndrome is
Not treated?
• What can I do to Over-come/Prevent Computer
vision syndrome?
• Common condition
• Resulting from focusing the eyes on an
electronic display PC,Tab,Mobile phones 2
to 3hrs or more
continously.
What is Computer vision Syndrome
Commoner in adults
Kids who stare at portable video games or use
computers throughout the day at school also can
experience eye problems related to computer use
Computer vision Syndrome
•Blurred vision
•Eye strain
•Dry, red eyes
•Eye irritation
•Headaches
•Neck pain
•Back pain
What You will Feel as Computer
Vision Syndrome?
www.edoctor.lk
• Glare (from reflections and lights The primary
source of glare on computer screens is overhead
office lights or direct light coming through
windows and bouncing off computer screens)
• Uncorrected Visual problems (presbyopia)
• Reduce bilking rate,because of continuous staring at
the screen.
• Poor sitting posture
Causes
Presbyopia
Eye strain
Characters (pixels) on computer screen do not have well
defined edges.
They are brightest at the center and diminish in
intensity towards the edges.
This makes it very difficult for eyes to maintain focus.
Constant gazing at a near distance at the monitor
which leads to convergence fatigue(burning, tired – eyes
feeling.)
•Significant deterioration of work performance
•Persistent discomfort
•Eye surface damages that require medications
What will happen if Computer vision
syndrome is Not treated?
Correct eye problems
Glasses,contact lenses
Visual therapy for problems in focusing
Using computer
• Correct Positioning (20 degrees lower)
• Proper illumination and adjust contrast
• Blinking/anti glare screens
• Take a break(20/20/20)
What can I do to Over-come/Prevent
Computer vision syndrome
Correct eye problems
• Routine eye checkups and glasses.
Anti reflective coating
Glasses for Presbyops
www.edoctor.lk
Eye drops when necessary
Constant use of glasses
Routine eye checkups
• Blink more often .Computer users should make a conscious
effort to blink more often: They should try out the
suggested formula 20: 20: 20
• Or blink every time u hit the ‘’enter’’ key or mouse click.
• Avoid air drafts .Also avoid sitting in front of an air
conditioner facing its air draft while working on a
computer.
• Reduce glare .Direct the overhead lights away from
computer screens Position your monitor so that all windows
are to the side rather than to the back or front. Adjust
window blinds so that sunlight is away from screen and your
eyes.
Further more
Correct Positioning
• Adjusting height of the seat.
• Adjust the height of the desk or chair so that the middle of the
computer screen is about 20 degrees below eye level.
• Screen distance The screen should be at a distance of 16-30
inches from the eyes.
www.edoctor.lk
In Summary
www.edoctor.lk
Computer vision syndrome

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Computer vision syndrome

  • 1. Eranda Wannigama Computer Vision Syndrome (Digital Eye Strain)
  • 2. Overview • What is Computer vision Syndrome? • What You will Feel as Computer vision Syndrome? • What will happen if Computer vision syndrome is Not treated? • What can I do to Over-come/Prevent Computer vision syndrome?
  • 3. • Common condition • Resulting from focusing the eyes on an electronic display PC,Tab,Mobile phones 2 to 3hrs or more continously. What is Computer vision Syndrome
  • 4. Commoner in adults Kids who stare at portable video games or use computers throughout the day at school also can experience eye problems related to computer use Computer vision Syndrome
  • 5. •Blurred vision •Eye strain •Dry, red eyes •Eye irritation •Headaches •Neck pain •Back pain What You will Feel as Computer Vision Syndrome?
  • 6. www.edoctor.lk • Glare (from reflections and lights The primary source of glare on computer screens is overhead office lights or direct light coming through windows and bouncing off computer screens) • Uncorrected Visual problems (presbyopia) • Reduce bilking rate,because of continuous staring at the screen. • Poor sitting posture Causes
  • 8. Eye strain Characters (pixels) on computer screen do not have well defined edges. They are brightest at the center and diminish in intensity towards the edges. This makes it very difficult for eyes to maintain focus. Constant gazing at a near distance at the monitor which leads to convergence fatigue(burning, tired – eyes feeling.)
  • 9. •Significant deterioration of work performance •Persistent discomfort •Eye surface damages that require medications What will happen if Computer vision syndrome is Not treated?
  • 10. Correct eye problems Glasses,contact lenses Visual therapy for problems in focusing Using computer • Correct Positioning (20 degrees lower) • Proper illumination and adjust contrast • Blinking/anti glare screens • Take a break(20/20/20) What can I do to Over-come/Prevent Computer vision syndrome
  • 11. Correct eye problems • Routine eye checkups and glasses. Anti reflective coating
  • 13. Eye drops when necessary
  • 14. Constant use of glasses
  • 16. • Blink more often .Computer users should make a conscious effort to blink more often: They should try out the suggested formula 20: 20: 20 • Or blink every time u hit the ‘’enter’’ key or mouse click.
  • 17. • Avoid air drafts .Also avoid sitting in front of an air conditioner facing its air draft while working on a computer. • Reduce glare .Direct the overhead lights away from computer screens Position your monitor so that all windows are to the side rather than to the back or front. Adjust window blinds so that sunlight is away from screen and your eyes. Further more
  • 18. Correct Positioning • Adjusting height of the seat. • Adjust the height of the desk or chair so that the middle of the computer screen is about 20 degrees below eye level. • Screen distance The screen should be at a distance of 16-30 inches from the eyes.