Title of presentation AAAAA BBBBB Dddd ffff gggg Computer Vision.
-
Upload
lizbeth-dorsey -
Category
Documents
-
view
302 -
download
0
Transcript of Title of presentation AAAAA BBBBB Dddd ffff gggg Computer Vision.
![Page 1: Title of presentation AAAAA BBBBB Dddd ffff gggg Computer Vision.](https://reader033.fdocuments.net/reader033/viewer/2022061415/56649dc65503460f94abaa37/html5/thumbnails/1.jpg)
Title of presentation
• AAAAA• BBBBB• Dddd• ffff• gggg
Computer Vision
![Page 2: Title of presentation AAAAA BBBBB Dddd ffff gggg Computer Vision.](https://reader033.fdocuments.net/reader033/viewer/2022061415/56649dc65503460f94abaa37/html5/thumbnails/2.jpg)
Computers and vision
Computer work
is very
demanding on
your visual
system
![Page 3: Title of presentation AAAAA BBBBB Dddd ffff gggg Computer Vision.](https://reader033.fdocuments.net/reader033/viewer/2022061415/56649dc65503460f94abaa37/html5/thumbnails/3.jpg)
Visual symptoms include• Headaches
• Sore, tired eyes
• Watery or dry
eyes
• Blurred vision
![Page 4: Title of presentation AAAAA BBBBB Dddd ffff gggg Computer Vision.](https://reader033.fdocuments.net/reader033/viewer/2022061415/56649dc65503460f94abaa37/html5/thumbnails/4.jpg)
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
![Page 5: Title of presentation AAAAA BBBBB Dddd ffff gggg Computer Vision.](https://reader033.fdocuments.net/reader033/viewer/2022061415/56649dc65503460f94abaa37/html5/thumbnails/5.jpg)
Comfortable vision• Regular visual breaks when working
• Work station set up
• Treatment of any focusing problems
• Correction of refractive error
![Page 6: Title of presentation AAAAA BBBBB Dddd ffff gggg Computer Vision.](https://reader033.fdocuments.net/reader033/viewer/2022061415/56649dc65503460f94abaa37/html5/thumbnails/6.jpg)
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
![Page 7: Title of presentation AAAAA BBBBB Dddd ffff gggg Computer Vision.](https://reader033.fdocuments.net/reader033/viewer/2022061415/56649dc65503460f94abaa37/html5/thumbnails/7.jpg)
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
![Page 8: Title of presentation AAAAA BBBBB Dddd ffff gggg Computer Vision.](https://reader033.fdocuments.net/reader033/viewer/2022061415/56649dc65503460f94abaa37/html5/thumbnails/8.jpg)
Visual problems can be caused by
• Uncorrected refractive error
• Focusing problems
• Problems with eye health
![Page 9: Title of presentation AAAAA BBBBB Dddd ffff gggg Computer Vision.](https://reader033.fdocuments.net/reader033/viewer/2022061415/56649dc65503460f94abaa37/html5/thumbnails/9.jpg)
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
![Page 10: Title of presentation AAAAA BBBBB Dddd ffff gggg Computer Vision.](https://reader033.fdocuments.net/reader033/viewer/2022061415/56649dc65503460f94abaa37/html5/thumbnails/10.jpg)
Diagram of an eye
![Page 11: Title of presentation AAAAA BBBBB Dddd ffff gggg Computer Vision.](https://reader033.fdocuments.net/reader033/viewer/2022061415/56649dc65503460f94abaa37/html5/thumbnails/11.jpg)
Normal focus
![Page 12: Title of presentation AAAAA BBBBB Dddd ffff gggg Computer Vision.](https://reader033.fdocuments.net/reader033/viewer/2022061415/56649dc65503460f94abaa37/html5/thumbnails/12.jpg)
Short sightedness (Myopia)Distance vision blurry, near vision usually ok
Short sighted focus Short sighted correction
![Page 13: Title of presentation AAAAA BBBBB Dddd ffff gggg Computer Vision.](https://reader033.fdocuments.net/reader033/viewer/2022061415/56649dc65503460f94abaa37/html5/thumbnails/13.jpg)
Long sightedness (Hyperopia)
Difficulty seeing clearly and comfortably up close
Long sighted focus Long sighted correction
![Page 14: Title of presentation AAAAA BBBBB Dddd ffff gggg Computer Vision.](https://reader033.fdocuments.net/reader033/viewer/2022061415/56649dc65503460f94abaa37/html5/thumbnails/14.jpg)
Astigmatism
• The eye is shaped more like a
football than a basketball
• Focusing error that causes blur
in one direction
![Page 15: Title of presentation AAAAA BBBBB Dddd ffff gggg Computer Vision.](https://reader033.fdocuments.net/reader033/viewer/2022061415/56649dc65503460f94abaa37/html5/thumbnails/15.jpg)
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
![Page 16: Title of presentation AAAAA BBBBB Dddd ffff gggg Computer Vision.](https://reader033.fdocuments.net/reader033/viewer/2022061415/56649dc65503460f94abaa37/html5/thumbnails/16.jpg)
Focusing problems
• Accommodati
on
• Vergence
• Binocular
vision
![Page 17: Title of presentation AAAAA BBBBB Dddd ffff gggg Computer Vision.](https://reader033.fdocuments.net/reader033/viewer/2022061415/56649dc65503460f94abaa37/html5/thumbnails/17.jpg)
Problems with eye health that may cause visual symptoms
• Diabetes
• Hypertension
• Age-related conditions
– Cataract
– Age-related macular degeneration
– Glaucoma
![Page 18: Title of presentation AAAAA BBBBB Dddd ffff gggg Computer Vision.](https://reader033.fdocuments.net/reader033/viewer/2022061415/56649dc65503460f94abaa37/html5/thumbnails/18.jpg)
Your eyes need to be examined regularly• No referral is required
• Eye examinations attract a Medicare rebate
• Find your local optometrist at
www.optometry.org.au
![Page 19: Title of presentation AAAAA BBBBB Dddd ffff gggg Computer Vision.](https://reader033.fdocuments.net/reader033/viewer/2022061415/56649dc65503460f94abaa37/html5/thumbnails/19.jpg)
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