1 / 13

Do computers damage the eyes or reduce eyesight?

Do computers damage the eyes or reduce eyesight?. Yuko Ohmori. Table of content. About myself Myth about computers PEMR Method/cure to eyestrains. About myself 1. I chose this topic because my eyes are bad

honora
Download Presentation

Do computers damage the eyes or reduce eyesight?

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. Do computers damage the eyes or reduce eyesight? Yuko Ohmori

  2. Table of content • About myself • Myth about computers • PEMR • Method/cure to eyestrains

  3. About myself 1 • I chose this topic because my eyes are bad • I use my computer VERY often and wanted to know if it was the cause of my low eyesight • When I was 11 years old, I got my first laptop • I used it everyday, every night • At that time, I still had very good eyesight

  4. About myself 2 • Later on, I bought myself my first iPod • I also used it everyday and night • As time passed, I noticed that my vision was not as great as a few years ago • In fact, my eyes were so bad (0.2 on both) that I had to get glasses • I went to an eye doctor several times

  5. About myself 3 • After I got my glasses, I started blaming myself for the overuse of computers and iPods. • But in reality, I found out that it was not the computer that reduced my eyesight, but was just the genes • Both my father and my mother have very bad eyesight • My father is near sighted and my mother is far sighted

  6. Myth about computers 1 • Computers DO NOT damage or reduce eyesight • People misunderstand with “eyestrain” • The effects of eye strains are not equivalent to eye damage • It WAS true in the old days with PEMR (I’ll get there later) but not true now-a-days technology

  7. Myth about computers 2 • Eyestrain - fatigue of the eyes • The reason that we get dry eyes is because we tend to blink fewer when the eyes are concentrated on one object (in this case the computer screen) • The reason our eyes become blurry is because when we rest our eyes, we have to focus somewhere else • And when that happens, the ciliary muscles tighten and soften rapidly • That is why the vision blurs out.

  8. Myth about computers 3 • Think about it this way • Looking at a light bulb in the dark will make your eyes dizzy • Same with computers, it is like a light bulb • Computers are visible because the pixels in them are just illuminated • Hence computers itself does not damage or reduce eyesight

  9. PEMR 1 • Pulsed electromagnetic radiation • Generated only from CRT based computers • The electrons which flow on the screen of the CRT based computer createthe radiation • The radiation, when at close range, disturbs the balance of all livingcells, including the cells in the eyes

  10. PEMR 2 • However, now-a-days computers no longer are based on CRT, but rather on LED and LCD • Hence the computers did not affect or reduce my eye sight (in this generation) • CRT displays were used in the 19170-80, so it is not linked to me • We can say the computers do damage eyes, but that is only in the old days and now it is false information

  11. Method/cure to eyestrains 1 • Though computers do not harm the eyes, it does indeed give you eye strains • The best method to prevent ANY eye strain is to use the 20-20-20 method • Every 20 minutes, look away at an object 20 feet away, for 20 seconds • By doing this, the eyes will not get too used to the computer monitor, hence no blur or dry itchiness

  12. Method/cure to eyestrains 2 • If your eyes are feeling itchy, it is because you are concentrating too much • Relax • Have a drink of water • Look at green things, because the eyes tend to relax better • If it itches very badly, use an eye drop to liquify the eyes.

  13. Reference • SacredEdenBlog.com. (2010, October 7). How to Prevent Computer Eye Damage[Motion picture]. Retrieved from http://www.youtube.com/watch?v=w5Xe3bTYego • ExplainingComputers. (2010, August 23). ‪Computing Health and Safety‬ [Motion picture]. Retrieved from http://www.youtube.com/watch?v=T8qGO7XQ0Uw&feature=related • Des. (2008). Does a computer damage your eye sight ? In Yahoo Answers [Computersdo not affect eyesight]. Retrieved from http://answers.yahoo.com/question/index?qid=20080908142609AArCvsK • BioShield. (2009). Are Computer Monitors Harmful to Your Health? Inemfbioshield [now-a-days computer screens are not harmful to theeye]. Retrieved from http://www.emfbioshield.com/arecrt.html • Anonymous. (2008). Is watching television in the dark bad for your eyes? Readmore: http://wiki.answers.com/Q/Is_watching_television_in_the_dark_bad_for_your_eyes#ixzz1McJma9gP. InAnswers [Watching any lighted display in the dark does not damagethe eyes. They are pixels that are illuminated by light, which is like thesame thing as looking at a lightbulb in the dark.]. Retrieved from • http://wiki.answers.com/Q/Is_watching_television_in_the_dark_bad_for_your_eyes • Rubin, M. (2010). Myths & Old Wives’ Tales About Your Eyes. In GrandTimes [Thereare many eye related myths that are false, one being that watchingsomething bright in the dark does not damage the eyes]. Retrieved from • http://www.grandtimes.com/eyes.html • State Government of Victoria. (2010). Eye disorders – some common problems. InBettleHealth [Some causes of eye itchyness and blurry viseion +cures]. Retrieved from http://www.betterhealth.vic.gov.au/bhcv2/bhcarticles.nsf/pages/eye_disorders_some_common_problems?open

More Related