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Computer Vision. Title of presentation. AAAAA BBBBB Dddd ffff gggg. Computers and vision. Computer work is very demanding on your visual system. Visual symptoms include. Headaches Sore, tired eyes Watery or dry eyes Blurred vision. Dry Eye. Inadequate tear cover on cornea

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  1. Computer Vision Title of presentation • AAAAA • BBBBB • Dddd • ffff • gggg

  2. Computers and vision Computer work is very demanding on your visual system

  3. Visual symptoms include • Headaches • Sore, tired eyes • Watery or dry eyes • Blurred vision

  4. Dry Eye • Inadequate tear cover on cornea • Common in computer users (due to less blinking) • Common in air conditioned environments • Tear supplements can be used

  5. Comfortable vision • Regular visual breaks when working • Work station set up • Treatment of any focusing problems • Correction of refractive error

  6. Computer work station set up • Screen should be easy to focus on • Monitor height • top of screen below eye level • bottom of screen can be read without leaning forward

  7. To reduce screen glare • Place monitor to the side of light source (not underneath) • Tilt screen • Anti glare cover • Adjust brightness, contrast (eg dark characters on a light background) • Anti-reflective coating if you wear glasses

  8. Visual problems can be caused by • Uncorrected refractive error • Focusing problems • Problems with eye health

  9. Refractive errors • Light entering the eye does not focus exactly on the back of the eye • Short-sightedness, long-sightedness and astigmatism, presbyopia • Can be corrected with glasses or contact lenses

  10. Diagram of an eye

  11. Normal focus

  12. Short sightedness (Myopia) Distance vision blurry, near vision usually ok Short sighted focus Short sighted correction

  13. Long sightedness (Hyperopia) Difficulty seeing clearly and comfortably up close Long sighted focus Long sighted correction

  14. Astigmatism • The eye is shaped more like a football than a basketball • Focusing error that causes blur in one direction

  15. Presbyopia • Begins from age 40 onwards • Small print is clearer if held further away • The lens inside the eye is less flexible • Glasses for reading restore close vision

  16. Focusing problems • Accommodation • Vergence • Binocular vision

  17. Problems with eye health that may cause visual symptoms • Diabetes • Hypertension • Age-related conditions • Cataract • Age-related macular degeneration • Glaucoma

  18. Your eyes need to be examined regularly • No referral is required • Eye examinations attract a Medicare rebate • Find your local optometrist at www.optometrists.asn.au

  19. Optometrists • Provide a comprehensive visual examination • Detect and diagnose eye health problems • Prescribe and supply glasses and contact lenses when required • Diagnose and treat eye coordination and focusing problems

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