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Medical Forum / General / Vision / December 2006Computer glasses, do I need one?
Hi all, Just want some of your opinons. I do have glasses for short-sightedness. But I only use it when looking at whiteboard or during conference where the presentations slides are far. Problem is I face computer everyday and since I can see things that are near to me clearly, hence I don't wear my glasses. Recently, I was told that I need computer glasses. If I don't need glasses for driving or reading things that are near to me or other things I do, do I need to wear computer glasses? If I do need to wear computer glasses, that means I only wear them when I'm using computers, right? Question is, will it make me very dependent and rely a lot on glasses and eventually I need to wear my glasses all the time whereas now I don't even wear it all the time? thanks. Hope someone can advise me or in case any of you have the same experience as me. Dear Bats, Bats> Just want some of your opinons. Certainly! Since you can get along with out the minus, your distant vision can't be that bad. If you want "computer glasses" a simple plus lens, just go to the drug store, and try some on. Try a +1.5 to +2 and determine if reading is comfortable through them. The cost about $8, so there is no "expense" problem. Rather than talking about it -- why not just give it a try? If you don't like them, don't wear them. Best, Otis > Hi all, > [quoted text clipped - 15 lines] > thanks. Hope someone can advise me or in case any of you have the same > experience as me. otisbrown@pa.net schreef: > Certainly! Since you can get along with out the minus, > your distant vision can't be that bad. Otis, shut up, you certainly have no knowledge what so ever about this. Dr Judy response is the correct professional one. Free to Marcus Porcius Cato's "Ceterum censeo Carthaginem esse delendam" In conclusion, I think the " old plus lens therapy junk recovered by Otis" should be destroyed. Jan (normally Dutch spoken) > If you want "computer glasses" a simple plus lens, > just go to the drug store, and try some on. > > Try a +1.5 to +2 and determine if reading > is comfortable through them. If Bats is about 1D myopic, then using a +1.50 for computer means he will need to position his monitor 14 to 16 inches from his eyes, using +2.00 means the monitor at 12 inches. If he is more myopic, then even closer. Unless he only uses a Blackberry, I don't think your suggestions will work. Dr Judy > Hi all, > [quoted text clipped - 7 lines] > If I don't need glasses for driving or reading things that are near to > me or other things I do, do I need to wear computer glasses? Who told you you needed computer glasses and did you ask that person why? Is your computer monitor clear without glasses? Whether you need computer glasses depends upon your age, your distance prescription and the distance from your eyes to your computer screen. Post your distance prescription and the distance from your eyes to the computer screen and we might be able to help answer your question. Judy > If I do need to wear computer glasses, that means I only wear them when > I'm using computers, right? Question is, will it make me very dependent [quoted text clipped - 3 lines] > thanks. Hope someone can advise me or in case any of you have the same > experience as me. > > Hi all, > > [quoted text clipped - 26 lines] > > thanks. Hope someone can advise me or in case any of you have the same > > experience as me. Reading through all of your answers suddenly make me think.. why do I need a computer glasses when I can view the monitor clearly? And Dr Judy, Yes, my computer monitor is clear even without glasses. That means, I do not need any glasses, do I? Reason why I started this topic is, I went to an optical shop and that person there told me that I should get a computer glasses since I face computer all the time. In fact, my purpose of going there was to ask him to help me check my eyesight because after wearing my current glasses (for shortsightednes), I suffer headache. I was guessing that perhaps that current glasses do not suit me anymore. Then, he started suggesting on the computer glasses thing to me. Then, I was thinking (but I wasn't sure), do I need a computer glasses because I face computer all the time? I'm 25 years old, if that helps. I can view my computer monitor clearly. I have slight astigmatism (-0.50) and -0.75 of shortsightedness. I hope that figures help. I don't really know what that figures mean, though. And do I need one computer glasses? To those who have answered me earlier, thank you so much. :-) > I'm 25 years old, if that helps. I can view my computer monitor > clearly. I have slight astigmatism (-0.50) and -0.75 of > shortsightedness. I hope that figures help. I don't really know what > that figures mean, though. And do I need one computer glasses? If you can prevent the headaches by taking off your glasses, then no, you don't need special glasses for the computer. Taking your glasses OFF approximates what "computer glasses" would do. -MT > > I'm 25 years old, if that helps. I can view my computer monitor > > clearly. I have slight astigmatism (-0.50) and -0.75 of [quoted text clipped - 7 lines] > > -MT Oops, when I said headache, it was when I was attending a conference and I need to use my current, short-sighted glasses to see the slides in front. It's not that I'm wearing my glasses in front of my laptop. Sorry for the confusion. > Oops, when I said headache, it was when I was attending a conference > and I need to use my current, short-sighted glasses to see the slides > in front. It's not that I'm wearing my glasses in front of my laptop. > Sorry for the confusion. If you have no blur or discomfort at the computer, then "computer glasses" aren't necessary. Most 25-year-olds don't need a special prescription for near work. If your current glasses cause headaches, they need to be changed. Sometimes 25-year-olds grow _less_ nearsighted. -MT >Reading through all of your answers suddenly make me think.. why do I >need a computer glasses when I can view the monitor clearly? [quoted text clipped - 3 lines] >topic is, I went to an optical shop and that person there told me that >I should get a computer glasses since I face computer all the time. In The idea, no doubt, was to help you reduce eye strain. Unless your degree of myopia coincidentally places your relaxed focal plane (i.e. with your focusing muscles relaxed) at the same distance as your monitor, your eyes will be doing work to let you focus properly. After you hit 40, if you still spend a lot of time in front of a monitor, you may find computer glasses a necessity, due to presbyopia. However, at 25, your eyes will have no problem accomodating for long periods of time at a typical monitor distance. Just the same, it's common practice to recommend that you periodically look away at distant objects (out the window, say) to relax your eyes a bit. You can also just defocus your eyes (if you can). Using computer glasses would just remove the need for your eyes to accomodate at that distance, relieving you of the need to take such visual breaks. My hunch is that doing that might also make your eyes a bit lazy, which would make it more difficult to accomodate at reading distances. But that's mostly a guess. I spend a lot of time in front of a monitor as well (professional programmer), and have no difficulties with eye strain at age 31. What I don't think anyone has mentioned is that you can try it out yourself using over the counter reading glasses, obviating the need to spend a lot of money on something you may not actually use. You'll need to measure the distance to your monitor, and either experiment with various pairs at the store, or do some calculations beforehand to determine what power you should use.  Signature- Mike Ignore the Python in me to send e-mail. >>Reading through all of your answers suddenly make me think.. why do I >>need a computer glasses when I can view the monitor clearly? [quoted text clipped - 13 lines] >After you hit 40, if you still spend a lot of time in front of a >monitor, you may find computer glasses a necessity, due to presbyopia. ... >You'll need to measure the distance to your monitor, and either >experiment with various pairs at the store, or do some calculations >beforehand to determine what power you should use. At 64, I have *severe* presbyopia -- virtually zeo accomodation. Thus, for me, it is essential (for computer work) to get the two eyes to come to focus *at EXACTLY the same distance*. How I do that: At eye exam, with new prescription, I borrow a couple of .25d test lenses (the kind they stick into that measuring device when testing your eyes), and go out into the waiting room There, I wear their test-lenses (mounted in that heavy, metal pair of "glasses" into which those lenses slip into and out of), and get a magazine with small print, shut one eye, and with a yardstick, move it back and forth in distance, noting where (the small range) the small print is clear. And ditto for the other eye. THEN, if the two ranges are different (and they always are!). I play with the .25d lenses, and come up with an EXACT prescription that makes the two ranges be at the same distance. Works for me! David On 11/30/06 11:19 PM, in article 1164957548.653333.20070@l12g2000cwl.googlegroups.com, "bats" <cindieh@gmail.com> wrote: > I'm 25 years old, if that helps. I can view my computer monitor > clearly. I have slight astigmatism (-0.50) and -0.75 of > shortsightedness. I hope that figures help. I don't really know what > that figures mean, though. And do I need one computer glasses? I first point out that I am not a health professional and get no income that way. My background is in physics and optics in particular. You are young enough so that you can still become more myopic. At this time, you have sufficient accommodation so that you do not need need glasses to see your screen clearly enough. Nevertheless, you do use that accommodative power to see the screen clearly. If you do not want to use your accommodative muscles, my guess is that reading glasses with a power somewhere between 1.00 to 1.50 diopters would help. I have used some that I bought for about $1 at swap meets or at 99¢ stores. They are perfectly adequate. At that price I have a range. It would help if you told us the distance from your eye to the screen. You can use Gauss's lens law to determine how much extra power is needed to be added to your +0.75D of focusing power so that you do not need to use accommodation to focus clearly on the screen. Although I do not wish to open an old wound on this newsgroup, many readers and posters think that using such glasses will prevent your myopia from getting worse. This runs against the religion for most of the health professional posters here. I personally disagree with the health professionals. I go along with Otis on this point. I do not see how properly sized reading glasses can hurt. They may actually supply a benefit. Bill There are reader -- Fermez le Bush > Although I do not wish to open an old wound on this newsgroup, I have this nagging suspicion that you are about to do =just tha= nonetheless.... > many readers > and posters think that using such glasses will prevent your myopia from > getting worse. This runs against the religion for most of the health > professional posters here. I personally disagree with the health > professionals. I go along with Otis on this point. I do not see how properly > sized reading glasses can hurt. They may actually supply a benefit. Oboy. But the theory seems to fail all scientific testing, except in near-point esophores. Heck, even Otis's OWN tests left him with one emmetropic nephew and one myopic niece. Sounds like a crashing failure to me EVEN THOUGH n=2 is hardly a test for the books. Relaxing accommodative effort is probably a good thing. Interfering with the near-vision-triad without expertise HAS CAUSED many an unwary soul--who has unwittingly listened to Otis--to become diplopic. It's just not as simple as buying OTC readers ... especially for the young, or for those in whom binocular status has not been thoroughly evaluated. Please make all commercially reasonable efforts to close Pandora's Box. Mark A's killfile DOES have its limits, after all. TYVM, Neil Dear Bill, I prefer to review the scientific facts themselves, rather than listen to others who always deny them. http://www.geocities.com/otisbrown17268/DynamicEye.html Prevention is indeed difficult, and depends on the wisdom and choice of the person concerned with it. Best, Otis > On 11/30/06 11:19 PM, in article > 1164957548.653333.20070@l12g2000cwl.googlegroups.com, "bats" [quoted text clipped - 33 lines] > There are reader > -- Fermez le Bush > > > If I do need to wear computer glasses, that means I only wear them when > > > I'm using computers, right? Question is, will it make me very dependent > > > and rely a lot on glasses and eventually I need to wear my glasses all > > > the time whereas now I don't even wear it all the time? > And Dr Judy, Yes, my computer monitor is clear even without glasses. > That means, I do not need any glasses, do I? Reason why I started this [quoted text clipped - 12 lines] > shortsightedness. I hope that figures help. I don't really know what > that figures mean, though. And do I need one computer glasses? Headaches are seldom due to eye problems, see your family doctor. If you haven't had an eye exam for a while then you should see your eye doctor again. At 25 you are unlikely to need special computer glasses. If you get headaches with computer use it is possible that the small amount of astigmatism is involved. You can test this by wearing your distance glasses while using the computer, if the headaches stop then simply use your distance glasses for the computer too. Wearing glasses for distance or computer will not make your eye lazy or worse. Dr Judy Dear Group, Judy> Wearing glasses for distance or computer will not make your eye lazy or worse. Otis> I believe that this poster's question was whether wearing a mild plus, say +1.5 diopters would have any effect on her eyes. Otis> What you are saying here is that wearing a mild plus for the computer has no effect on the eye at all. And that she could get a over-the-counter plus (sold with no restrictions), try it out, and, if she likes the "reduced accommodation effort", then use it at her own discretion. There is no harm to wearing a mild plus since it has no effect on the refractive STATE of any eye. Best, Otis > > > > If I do need to wear computer glasses, that means I only wear them when > > > > I'm using computers, right? Question is, will it make me very dependent [quoted text clipped - 32 lines] > > Dr Judy > Dear Group, Dear Group, Please disregard Otis's postings. He is not in the medical profession and not in any position to give medical advice. Thanks! Allen > Dear Group, > [quoted text clipped - 5 lines] > a mild plus, say +1.5 diopters would have any effect on > her eyes. Please reread her post. She did not ask about plus at all, she asked: "If I do need to wear computer glasses, that means I only wear them when I'm using computers, right? Question is, will it make me very dependent and rely a lot on glasses and eventually I need to wear my glasses all the time whereas now I don't even wear it all the time" At that time, she did not know what was meant by "computer glasses" and +1.50 would certainly not be a suitable computer Rx for a low myope. > Otis> What you are saying here is that wearing a mild plus > for the computer has no effect on the eye at all. Yes And that > she could get a over-the-counter plus (sold with no restrictions), > try it out, and, if she likes the "reduced accommodation effort", > then use it at her own discretion. There is no harm > to wearing a mild plus since it has no effect on the > refractive STATE of any eye. No, I specifically recommended that she NOT get over the counter readers as they would be too strong for her computer work. Can you not read? Dr Judy >Hi all, > [quoted text clipped - 15 lines] >thanks. Hope someone can advise me or in case any of you have the same >experience as me. What an odd question. If you can see the computer screen clearly then why would you bother to get glasses? If you can't then you know you need them. Ann Your "advice" strikes me as odd. Odd in that you are deciding whether someone can benefit from computer glasses without even knowing what the refraction is, what the binocularity status is, what the accommodative response is. It's like saying, in another context, if you feel fine, why should you take any blood pressure or cholesterol meds? Very odd. w.stacy, o.d. >What an odd question. If you can see the computer screen clearly then >why would you bother to get glasses? If you can't then you know you >need them. > >Ann > > >What an odd question. If you can see the computer screen clearly then > >why would you bother to get glasses? If you can't then you know you > >need them. William Stacy replied: > Your "advice" strikes me as odd. Odd in that you are deciding whether > someone can benefit from computer glasses without even knowing what the > refraction is, what the binocularity status is, what the accommodative > response is. It's like saying, in another context, if you feel fine, > why should you take any blood pressure or cholesterol meds? Very odd. I want to agree with Bill, and even amplify on it just a touch. My situation is fairly well known around here. These days, I'm exotropic (my eyes turn out), but you might not notice it to look at me. That's because my brain/visual system is expending significant energy to overcome this misalignment on its own (using accommodative and vergence amplitudes). I'm also quite farsighted and have real problems with accommodation (and recently acquired ocular surface disorders). So when I tell people that "I can't read," there's no understanding of what I could possibly mean. What I MEAN is: while I can physically read, it causes significant fatigue, dizziness, pain, and nausea and--if I don't stop in a very few minutes--it "locks up" my accommodative system, altering the alignment of my eyes AND making me "pseudomyopic--" artificially nearsighted. Case in point: spent five hours helping rearrange a storage space yesterday (my whole world was at a distance of less than a few feet for the entire time). By the time we were finished, I was too "nearsighted" to drive my car home. So ... I think Bill Stacy is ab-so-lute-ly right on the money: just because a visual task CAN be accomplished by a person does not mean that there isn't an underlying problem that might dramatically benefit from an optometric (or other) intervention. Neil Neil, The symptoms you report are similiar to mine but appear more severe. I'm exotropic, read a a great deal but over the last several years my vision has fluctuated so wildly, even in the space of 10 minutes, that it drives me crazy with frustration. I've seen several specialists and they cannot offer anything except to suggest it is neurologic; though like yourself I suspect my problem is compounded by slight corneal distortions. Sustained reading also makes me pseudo myopic, just to complicate the picture. What I am doing now is wearing an eye patch over the exotropic eye during reading but I'm not sure it is having any benefit. I started doing this because like yourself I am of the opinion that visual processing system is being overwhelmed by the ongoing stress. My situation is compounded by having optic nerve damage. Aint it a bummer, John. > > >What an odd question. If you can see the computer screen clearly then > > >why would you bother to get glasses? If you can't then you know you [quoted text clipped - 37 lines] > > Neil > The symptoms you report are similiar to mine but appear more severe. > I'm exotropic, read a a great deal but over the last several years my [quoted text clipped - 8 lines] > that visual processing system is being overwhelmed by the ongoing > stress. My situation is compounded by having optic nerve damage. John, A couple of questions: - how old are you? - what's your prescription - just how exotropic are you? - have you had vision therapy, strabismus surgery, or prisms prescribed? Did it/they help? - do you have a vertical deviation (i.e., hyper/hypotropia), too? - what sort of corneal distortions? Keratoconus? - do you wear contacts (RGPs can benefit some people with distorted corneas), glasses, or neither? > Aint it a bummer, Yeah. On a =good= day ;-) > > The symptoms you report are similiar to mine but appear more severe. > > I'm exotropic, read a a great deal but over the last several years my [quoted text clipped - 14 lines] > > - how old are you? 48, but the problem has occurred on numerous occasions in my life(early 20's first time), each time I've seen specialists, they have been mystified. This last time though was very severe, lasting 4 years, still no complete resolution. > - what's your prescription None, I have 6\5+ in my left eye, legally blind in my right eye > - just how exotropic are you? Never been told. > - have you had vision therapy, strabismus surgery, or prisms > prescribed? Did it/they help? No, tried some exercises(Bates) when the first attack occurred. Prior to this I was prescribed very weak glasses for short sightedness. Did the exercises, since then my vision has always been 6\5+. My problems arose from screwed up surgery, leaving me with optic nerve damage, probably third nerve palsy (ptosis, left eye, the good one), and probably some frontal lobe damage though evidence is that left no lasting deficit. I had years of visual therapy post surgery but can not recall that because it began when I was four years old. > - do you have a vertical deviation (i.e., hyper/hypotropia), too? Yes, > - what sort of corneal distortions? Keratoconus? Unknown, not diagnosed, just from what I have been able to read my symptoms are concordant with corneal distortion. > - do you wear contacts (RGPs can benefit some people with distorted > corneas), glasses, or neither? No. > > Aint it a bummer, > > Yeah. On a =good= day ;-) >Your "advice" strikes me as odd. Odd in that you are deciding whether >someone can benefit from computer glasses without even knowing what the >refraction is, what the binocularity status is, what the accommodative >response is. It's like saying, in another context, if you feel fine, >why should you take any blood pressure or cholesterol meds? Very odd. Ah well, I can see my computer so I certainly won't be taking anyone else's advice as to whether I need to wear different glasses to see it. Why would I? It's good and clear for me to see and that's what I need to do. >w.stacy, o.d. > [quoted text clipped - 4 lines] >>Ann >> > >Your "advice" strikes me as odd. Odd in that you are deciding whether > >someone can benefit from computer glasses without even knowing what the [quoted text clipped - 6 lines] > it. Why would I? It's good and clear for me to see and that's what I > need to do. When I was young, I didn't see very well. However, I didn't know it. Finally, somebody sent me to an optometrist. I got strong myopia glasses. I was astounded to find out what the world looked like. I am convinced that this lack of correction made a major difference in life, like my inability to play sports and my interest in reading. I don't know whether the OP needs computer glasses. It doesn't seem likely, but if an eye professional suggested it then perhaps it deserves a chance. SignatureDan Abel dabel@sonic.net Petaluma, California, USA > > >Your "advice" strikes me as odd. Odd in that you are deciding whether > > >someone can benefit from computer glasses without even knowing what the [quoted text clipped - 21 lines] > dabel@sonic.net > Petaluma, California, USA Once again, thanks a lot for all the replies. The distance in between my laptop and eyes are around 20 inches. And with that, I can see clearly. So, further advice is very much appreciated. Thank you all for the time to reply me. :-) And by the way, the person who suggested me for a computer glasses is not an eyecare professional, he is just one of the workers in that optical shop. Because when I further asked him questions, he couldn't seem to answer me properly. > Ah well, I can see my computer so I certainly won't be taking anyone > else's advice as to whether I need to wear different glasses to see > it. Why would I? It's good and clear for me to see and that's what I > need to do. I'm very happy for you. Just don't go around telling people what they should or should not do based on YOUR wonderful experiences... w.stacy, o.d. ignorance is bliss... >> Ah well, I can see my computer so I certainly won't be taking anyone >> else's advice as to whether I need to wear different glasses to see [quoted text clipped - 3 lines] >I'm very happy for you. Just don't go around telling people what they >should or should not do based on YOUR wonderful experiences... I'll do what I like. You can't really stop people from posting to a newsgroup. Everyone knows that everything everyone posts is their own opinion. Even what you post needs to be taken with a pinch of salt because nobody knows who you are in reality. In actual fact in this case I have been proven correct probably because I was looking from a more realistic perspective. People in the business were looking for something to be wrong instead of looking at what was really posted. Of course you will, and obviously nobody can stop you from posting whatever garbage you want. You were not proven correct, although you are quite right that people in the business are looking for something to be wrong, not "instead" of what was posted. It's what we do. All the professions do that. And what I found wrong in your post was the blanket statement that if the person didn't feel there was a problem, there was necessarily no problem. That's a dangerous approach from a health care standpoint, and from a scientific view, is just logically incorrect. Nobody knows who I am? Some people do. If you want to know who I am, click on http://www.obase.net > I'll do what I like. You can't really stop people from posting to a > newsgroup. Everyone knows that everything everyone posts is their own [quoted text clipped - 5 lines] > the business were looking for something to be wrong instead of looking > at what was really posted. |
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