Do computers damage the eyes or reduce

eyesight?Yuko Ohmori

Table of contentAbout myselfMyth about computersPEMRMethod/cure to eyestrains

About myself 1I chose this topic because my eyes are badI use my computer VERY often and wanted to

know if it was the cause of my low eyesightWhen I was 11 years old, I got my first laptopI used it everyday, every nightAt that time, I still had very good eyesight

About myself 2Later on, I bought myself my first

iPod I also used it everyday and nightAs 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

About myself 3After 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

Myth about computers 1Computers DO NOT damage or reduce eyesightPeople misunderstand with “eyestrain”The effects of eye strains are not equivalent to eye

damageIt WAS true in the old days with PEMR (I’ll get there

later) but not true now-a-days technology

Myth about computers 2Eyestrain - fatigue of the eyesThe 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.

Myth about computers 3Think about it this wayLooking at a light bulb in the

dark will make your eyes dizzySame with computers, it is like

a light bulbComputers are visible because

the pixels in them are just illuminated

Hence computers itself does not damage or reduce eyesight

PEMR 1Pulsed electromagnetic radiationGenerated only from CRT based computersThe electrons which flow on the screen of the CRT

based computer create the radiationThe radiation, when at close range, disturbs the

balance of all living cells, including the cells in the eyes

PEMR 2However, now-a-days computers no longer are

based on CRT, but rather on LED and LCDHence 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 meWe can say the computers do damage eyes, but

that is only in the old days and now it is false information

Method/cure to eyestrains 1Though computers do not harm the eyes, it does

indeed give you eye strainsThe best method to prevent ANY eye strain is to

use the 20-20-20 methodEvery 20 minutes, look away at an object 20 feet

away, for 20 secondsBy doing this, the eyes will not get too used to the

computer monitor, hence no blur or dry itchiness

Method/cure to eyestrains 2If your eyes are feeling itchy, it is because you are

concentrating too muchRelaxHave a drink of waterLook at green things, because the eyes tend to

relax betterIf it itches very badly, use an eye drop to liquify

the eyes.

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 [Computers

do 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 [There

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http://www.grandtimes.com/eyes.html State Government of Victoria. (2010). Eye disorders – some common problems. In

BettleHealth [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