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Computers Linked to Glaucoma?

An anonymous reader writes "Maybe we should have listened to our parents and gone outside instead of playing video games. In newly published study in the Journal of Epidemiology and Community Health, heavy computer users were 74% more likely to develop visual field problems as compared baseline in a group of 10,202 randomly selected workers. Furthermore, heavy computer users were found to be 81% more likely to develop glaucoma."

39 of 373 comments (clear)

  1. Obviously by YrWrstNtmr · · Score: 5, Funny

    Nothing for you to see here.

    1. Re:Obviously by Ignis+Flatus · · Score: 3, Funny

      Yeah, that's the long and short of it.

    2. Re:Obviously by Thud457 · · Score: 3, Funny

      So can I file a worker's comp claim for reading slashdot all day?!!!

      --

      the preceding comment is my own and in no way reflects the opinion of the Joint Chiefs of Staff

    3. Re:Obviously by blowdart · · Score: 5, Funny

      And it proves that all those years looking at jpg porn does make you go blind.

    4. Re:Obviously by Pii · · Score: 4, Insightful
      Excellent!

      There's your justification for the Medical Marijuana prescription!

      --
      For those that would die defending it, Freedom
      has a sweet taste that the protected will never know.
    5. Re:Obviously by Fnkmaster · · Score: 3, Informative

      Yes, it helps but no, it doesn't help much. There were apparently a bunch of studies done back in the late 90s, since it is a known fact that marijuana, specifically THC, the psychoactive substance therein, does reduce intraocular pressure, which is the primary symptom of glaucoma.

      However, the relief is apparently short-lived and comes only with sufficiently high dosage to get fairly high, so you can't just have a few toots twice a day to treat your glaucoma effectively. Furthermore, there are more effective eye-drop based treatments that have no side effects.

      Also (according to some sources) marijuana reduces blood flow to the optic nerve, which is not good for glaucoma patients. Not sure how substantial this effect is. Anyway, Googling for "marijuana glaucoma" turns up tons of stuff, some of it from fairly reputable sources and studies.

      Certainly, I don't think tooting some marijuana will hurt your glaucoma, but it doesn't seem like it will cure it either.

    6. Re:Obviously by iocat · · Score: 3, Insightful
      Cool, thanks, that confirms my suspicions that while pot may help, actual medicine is better. I have glaucoma on both sides of my family and I spent ~16 hours a day looking at a CRT or LCD screen.

      I encourage *everyone* on slastdot to go to the eye doctor at least every other year. Glaucoma causes blindness, and unless you get tested, the first symptom will be an irreversable loss of vision. If caught early -- before a loss of vision -- it can be arrested with eye-drops. It can be arrested aftera loss of vision too, but you'll still be somewhat blind!

      --

      Dude, I think I can see my house from here.

    7. Re:Obviously by pherris · · Score: 3, Funny
      The IOM's report on marijuana (scroll down to "glaucoma") supports Fnkmaster's summary.

      However, the relief is apparently short-lived and comes only with sufficiently high dosage to get fairly high ...

      Sir, I accept your challenge. Give me a few days and I'll report back. =)

      --
      "And a voice was screaming: 'Holy Jesus! What are these goddamn animals?'" - HST
  2. trouble reading by slimak · · Score: 4, Funny

    Is anyone else having trouble reading the article?

    1. Re:trouble reading by krygny · · Score: 4, Funny

      I just don't see it.

      --
      Research shows that 67% of those who use the term "research shows", are just making shit up.
  3. Glaucoma by What'sInAName · · Score: 5, Funny


    Hmmm, I can think of a good cure for that. Actually, many video game players already self-treat this condition. ;-)

  4. Woo Hoo! by Mz6 · · Score: 4, Funny

    And we all know what helps Glaucoma... right? Always reminds me of the classic Simpsons episode. All the pretty colors, huge donuts, and of course flying to work and then forgetting about everything. Ahh.. I can't wait!

    --
    Hmmm.
    1. Re:Woo Hoo! by smooth+wombat · · Score: 5, Informative
      What you are thinking only helps Glaucoma in the sense that the pressure on the eye is somewhat (temporarily) relieved. It does nothing to the underlying condition.

      For reference:

      CNN
      Glaucoma Research Foundation
      Canadian Opthomological Society
      National Eye Institute

      I realize that letting facts get in the way of things is not the norm here on /. but there's always a first time.

      --
      We will bankrupt ourselves in the vain search for absolute security. -- Dwight D. Eisenhower
    2. Re:Woo Hoo! by eric_brissette · · Score: 3, Funny

      Man, you're such a buzz kill.

  5. It's what they were looking at on the screen... by shawn(at)fsu · · Score: 4, Funny

    And what they were doing while they were looking at it.
    Mom was right, it really does make you go blind

    --
    500 dollar reward for tip(s) leading to the arrest of the person(s) who stole my sig.
  6. augh by Anonymous Coward · · Score: 5, Funny

    My eyes! The googles do nothing!

  7. Trial lawyers, start your engines! by glrotate · · Score: 5, Funny

    Class action baby. Let's sue the hell out of the monitor manufacturers. This will be bigger than aesbestos and silicone implants combined!

  8. This could help the Libertarians by Thunderstruck · · Score: 4, Funny

    Large sections of the population use computers heavily.

    Ergo large sections of the population may develop glaucoma..

    Ergo Large sections of the population will have an interest in legalizing marijuana as a cheap means to treat the problem

    Ergo the Libertarians now have a drawing card to people who would otherwise find the whole thing a bit kookie.

    --
    Trying to use sarcasm in text-based forums does not work.
  9. Glaucoma by arnoroefs2000 · · Score: 3, Informative

    For a non-slashdotted link to information on Glaucoma: clicketie-click

  10. Now they fucking tell us by IronChefMorimoto · · Score: 4, Funny

    The bastards. Could they have told us this AFTER I finished winning Doom3, HALO, and HL2? Crap. And I don't have vision insurance right now.

    Fuck it -- my wife says I'm good at groping around for things in the dark. I'll survive.

    IronChefMorimoto

  11. Hardly surprising by LurkerXXX · · Score: 4, Interesting
    The article seems to be slashdoted, so I can't see it but...

    I'm thinking folks who work on computers for long periods of time just may fall into a couple stereoypes. Glasses wearing and/or overweight/out-of shape. (I know sitting at a computer all hours doesn't do much for my physical fitness)

    People of shape are going to risk a higher rate of diabetes, which is a risk factor for glaucoma. Being nearsighted is also a risk factor.

    http://www.umm.edu/ency/article/001620.htm

  12. CRT vs LCD? by FortKnox · · Score: 4, Interesting

    The story is /.'ed, so I haven't read it... did they compare staring at LCDs vs CRTs? I know LCDs are easier on the eyes...

    --
    Good quote, too many chars. Seriously, the slashdot 120 char limit sucks!
    1. Re:CRT vs LCD? by pherris · · Score: 4, Interesting
      Or for that matter what about dot pitch or scan rate? Does being on a 20" high quality LCD screen cause less damage than a 14" Packard Bell CRT?

      With such a wide variety of "computer displays" available it seems it would be worth reinvestigating the results and looking for a relationship.

      --
      "And a voice was screaming: 'Holy Jesus! What are these goddamn animals?'" - HST
  13. CRT vs LCD by DigitalRaptor · · Score: 3, Interesting

    I can only speak for my own experience, and I don't know whether this study differentiates between CRT and LCD users, but when I first became a programmer using a CRT for 3 or 4 years straight, my eyesight deteriorated rapidly from 20 / 20 to needing glasses to read comfortably without getting headaches. Since switching to a dual LCD setup my prescription hasn't changed in about 2 years.

    Your mileage may vary. But I'll never use a CRT again.

    --
    Lose Weight and Feel Great with Isagenix
    1. Re:CRT vs LCD by bconway · · Score: 4, Informative

      That's a nice anecdote. Apparently neither you nor the author understand the difference between correlation and causation.

      --
      Interested in open source engine management for your Subaru?
    2. Re:CRT vs LCD by Politburo · · Score: 4, Insightful

      What was your age at the time of eyesight change and family history of eye problems? In my family, eyesight deteriorates in the teens, but the change levels off in adulthood. My dad hasn't had his prescription changed in many, many years. I still have mine changed every 2-3 years. Correlation != causation, etc.

    3. Re:CRT vs LCD by tsg · · Score: 3, Insightful

      This was the only period of my life where I experienced degradation in my eyesight.

      Additionally, the eye strain and feeling of my eyes being hot stopped as soon as I switched to using LCD's.


      My eyesight started deteriorating rapidly before they even had computer monitors and my prescription hasn't changed in the last five years. By your reasoning, the CRT helped my eyesight.

      --
      People's desire to believe they are right is much stronger than their desire to be right.
  14. bad conclusions? by photon317 · · Score: 3, Insightful


    IHNRTFA (I have not read the f-in article), but it seems to me this is yet another case of the misuse of statistics. Just because X% of PopulationY happens to also be in PopulationZ doesn't imply a causal relationship in any specific direction. It's just as likely that the real reason for the link is the opposite of what they suppose: that persons who have the genetic defects and/or environmental factors in their lives which lead to a higher rate of glaucoma are more likely to be computer users....

    --
    11*43+456^2
    1. Re:bad conclusions? by American+AC+in+Paris · · Score: 4, Insightful
      It's just as likely that the real reason for the link is the opposite of what they suppose: that persons who have the genetic defects and/or environmental factors in their lives which lead to a higher rate of glaucoma are more likely to be computer users....

      ...do you say this because you have access to research that refutes their theories? Or do you say this because you don't like their conclusion, and are thus inclined to dismiss their work with the Cudgel of Correlation Is Not Causation?

      It is not "just as likely" that computer workers are, as a group, genetically different from other workers. That there may be "environmental factors" doesn't really make any difference to their conclusion: for some reason, computer workers exhibit a much higher rate of visual problems. Yours is a plausible scenario, but do give the researchers some credit. Grant them the fact that they're eminently more qualified to examine this particular issue than you are, and that it's worth taking their findings seriously, even in light of the fact that their findings aren't carved in stone. Hell, the researchers themselves would likely be among the first to emphasize that their findings are not fact. This is one of the founding tenets of scientific research, for crying out loud.

      Simply because John Q. Citizen can fire off a plausible alternative after five seconds' thought does not mean that his theory is "just as likely" to be the case as the result of a published research project.

      --

      Obliteracy: Words with explosions

  15. Did they properly control the experiment by PsiPsiStar · · Score: 5, Interesting

    1. Did they control for the fact that people who use computers heavily are more likely to be sedentary. Could this lifestyle lead to increased diabetes and related vision problems (don't know about glaucoma)

    2. Did they control for the possibility that people with vison problems or other problems originally might be less outgoing and likely to interact with others? What demographic uses computers heavily compared to the mainstream?

    I know my distance vision has deteriorated from heavy computer usage, but I'd like to see whether glaucoma is caused by staring at a screen... or some other aspect of computer usage, like chronic inflammation from Carpal Tunnel or somthing like that.

    --

    ___
    It's the end of my comment as I know it and I feel fine.
    1. Re:Did they properly control the experiment by Peyna · · Score: 4, Informative

      Glaucoma is definitely related to diabetes, and diabetes is definitely related to a sedentary lifestyle.

      Although, glaucoma also is caused by a number of other things (many of which we do not know); the article is down right now, so I can't tell what type of glaucoma these people were found to have.

      Assuming that the increased rate could be explained by the sedentary lifestyle associated with heavy computer usage, it's just more news of the same: we're getting fat, lazy and stupid, and we'll look for any thing to blame it on other than the fact that we eat too much, don't exercise, and think education is a joke.

      --
      What?
  16. Re:Shoddy research by Politburo · · Score: 4, Insightful

    Gosh I hope you're joking. Either that or you don't understand the word "likelihood". Your one counterexample does not mean that the research is no longer valid.

  17. Simple, inexpensive cure to this by TyrranzzX · · Score: 5, Interesting

    Every hour or so for you sitting at your machine, sit back and close your eyelids, and completly relax and unfocus your eyes. Every night before you go to sleep, completly unfocus your eyes until you fall asleep. This will alleviate the pressure inside of the eye long enough for some of the fluid to drain and pressure to decrease, and will help combat the feeling that the moniter really isn't there nor are the words and the occasional difficulty reading them, or as I call it, virtual nausea, which tends to develope after a few thousand hours of using a computer without stopping for much. This is what I do, and it really helps to keep me focused. If you like meditation, it can really help you get focued and keep you from having problems seeing things. Anyone who games really should learn it. The other reccomendation, is to have a nice view to look at outside the window so you aren't always looking at the moniter, preferably by a strip club or beach or somethin ;).

  18. Computer eye strain story. by ahfoo · · Score: 4, Funny

    I was living in Taiwan in the nineties and doing tons of computer work on a little 15" monitor for weeks on end. My eyes were seriously going out. It was quite obvious. I was having trouble focusing.
    So, there were all these Chinese medicine shops around where I lived and I decided to go in and ask for some herbs or accupuncture.
    I got a Chinese friend to go with me and I communicated to the Doc that my eyes were going blurry from using the computer constantly.
    The guy told me --stop using the computer.
    I was impressed with his skill.

  19. Re:CRTs probably cause nearsidedness by JeffTL · · Score: 4, Interesting

    Well, that's because a CRT is basically an HDTV -- it shows you a high res image that doesn't actually exist, but is rather an optial illusion produced by scintillations of beta radiation on phosphors. The screen is thick and has lead in it so the beta particles don't get out and cause any problems associated with small quantities of radiation.

    That's probably why LCDs produce less eye strain -- the image is actually there (having been created by the electricity activating the liquid crystals) and it's where you perceive it as being. It's got a fluorescent light behind it in most modern cases, and that's why you can use it in the dark -- non-backlit LCDs depend on available darkness.

  20. Re:My home remedy for glaucoma : by Hell+O'World · · Score: 3, Funny

    And that's supposed to help you see better?

  21. Re:LED vs CRT by RichDiesal · · Score: 4, Funny
    LED vs CRT use etc.

    I think we can all agree that you have other far more important problems if you stare at an LED all day.

  22. Re:My home remedy for glaucoma : by martingunnarsson · · Score: 4, Funny

    It helps you see more. Two of everything!

    --
    Martin
  23. Re:Ironically, by BlackHawk-666 · · Score: 3, Interesting
    It's also pretty good for treating pain in knuckles and reducing inflamation in joints. If you're an I.T. worker then dope is a virtual wonder drug. It reduces blood pressure, stress and glycoma related problems, helps with arthritis, and is a pretty nice psychoactive to boot. The only big negatives are increased risk of lung and mouth cancers, a lowered motivational drive, lowered short term memory and the fact that it's illegal and in some repressive countries can land you in prison (oh, and your short term memory goes too). I've been an I.T. worker for 24 years now, and a regular pot smoker (most days, but only small amounts of heads and only after my personal "watershed" hour) for 21 years and I can heartily recommend them both.

    Interesting to note, recently I ran out of smoke and thought it might be a good time to take one of my breaks from it for a few months to let my system flush and clean out. Within a few weeks I had serious issues occurring with my sight, and I was developing a tic in one of my eyes that wouldn't go away. My knuckles became inflamed and I wondered if I could keep working with a PC. The joints of my entire body swelled, and sleeping became incredibly difficult at night. When doing sit-ups I had crunching sounds coming from my spine and a deep cracking in the lower back. ALL of these symptoms went away went I went back to smoking weed! Now, I know the long term effects aren't exactly conducive to our profession (computer programmer) but they are definitely the lesser of two evils here.

    --
    All those moments will be lost in time, like tears in rain.