I've been wearing reading glasses on top of my normal glasses and I feel like my vision has become more stable and is not getting worse as quick as it used to. Maybe wearing reading glasses slows down the progression of myopia.
I've been wearing reading glasses on top of my normal glasses and I feel like my vision has become more stable and is not getting worse as quick as it used to. Maybe wearing reading glasses slows down the progression of myopia.
Or maybe myopic progression slows as you get older?
while it may sound "logical" to you, that premise has already been shown to be false.
Did you read the study linked by Member 453693?
Just remember there are two types of mypoia. One is caused by the inability of ciliary muscle to relax and the other is caused by increase in the eye's axial length or changes to the refractive index of the lens/cornea.
When you're still a child, your muscle has greater flexibility. That includes the ciliary muscle. But most of the myopia is accounted for the size of the eyeball.
And when you become a adult, your flexibility can only deteriorate. If you don't use it, you lose it. Just like people who could do splits stop being able to when they get older for not training.
But unlike they eyes, you can apply external pressure to stretch the legs while you cannot exert any power on your ciliary muscle when you want to see further because it's "relaxing". There is simply no way to stretch the ciliary muscle. Thus, there is no way you can reverse myopia. But you can certainly halt its progress by seeing things very far apart from you to keep it relaxed at it's maximum length.
To see things close to you, you just need to be able to contract the muscle which can be done on its own. You may lose the strength to do it if you don't see things close to you for a while but you can gain it back easily.
Just another simple logic to explain why reading glasses can help mypoia (or more precisely, stopping its progression).
Did you read the study linked by Member 453693?
Just remember there are two types of mypoia. One is caused by the inability of ciliary muscle to relax and the other is caused by increase in the eye's axial length or changes to the refractive index of the lens/cornea.
When you're still a child, your muscle has greater flexibility. That includes the ciliary muscle. But most of the myopia is accounted for the size of the eyeball.
And when you become a adult, your flexibility can only deteriorate. If you don't use it, you lose it. Just like people who could do splits stop being able to when they get older for not training.
But unlike they eyes, you can apply external pressure to stretch the legs while you cannot exert any power on your ciliary muscle when you want to see further because it's "relaxing". There is simply no way to stretch the ciliary muscle. Thus, there is no way you can reverse myopia. But you can certainly halt its progress by seeing things very far apart from you to keep it relaxed at it's maximum length.
To see things close to you, you just need to be able to contract the muscle which can be done on its own. You may lose the strength to do it if you don't see things close to you for a while but you can gain it back easily.
Just another simple logic to explain why reading glasses can help mypoia (or more precisely, stopping its progression).
Or maybe myopic progression slows as you get older?
My eyesight got worse after just one semester with a lot of reading. I was not using reading glasses then. After I started wearing reading glasses, I could read a lot more and my eyesight did not seem to worsen as fast. I don't think this is totally due to age because it was around the same period, just a couple years later.
If you wear your glasses to do a lot of near work, it does seem to make your eyesight worse from my experience. Wearing a lower prescription or reading glasses for near work should help. I'm not sure if it can reverse myopia that has already occurred.
My eyesight got worse after just one semester with a lot of reading. I was not using reading glasses then. After I started wearing reading glasses, I could read a lot more and my eyesight did not seem to worsen as fast. I don't think this is totally due to age because it was around the same period, just a couple years later.
If you wear your glasses to do a lot of near work, it does seem to make your eyesight worse from my experience. Wearing a lower prescription or reading glasses for near work should help. I'm not sure if it can reverse myopia that has already occurred.
Hello, I just registered to reply because this topic is close to me.
I am a high tech worker who is slowly losing his sight. I did a vision check and they recommended me no glasses because my number is so low (-0.25 to -0.5)
But I'm extremely afraid of deterioation due to 10 hours per day computer screen time. My screen is positioned about 30cm-40cm from me. I can't move it further because there's a wall blocking. And i can't sit away further because it get's inconvienant. I can't buy larger screen, either. I wish I could.
I am afraid of deterioration because my eyes focal center is positioned always 40cm away from me. I'm convinced this had something to do with my sight deteriorating slowly. because..
What kind of animal, living in the wild, have myopia?
Do dogs have myopia, do cats, monkies, birds, elephants, horses and other mammals have it? I doubt.
Do villagers living in africa in the most ancient tradition, have myopia?
Is the precentage of farmers who are having myopia, is bigger, than the precentage of high tech workers who are having myopia? I doubt.
All this convinces me that myopia. at least my own minor myopia, is the pressure of sitting all day long, reading books, computer screen, TV and so forth. because if I would go outside and farm all the day I doubt this kind of situation was occuring. But this is all my speculation..if you have a research that proves otherwise I would like to see it.
I thought - If i could move the screen away - OR - move my focal focus point further away, by wearing reading glasses (let's say +1 for instance) then my vision would stop deteriorating. I am now replying in this thread because I really want to discuss this with professionals from the field to see whether am I right or wrong. I am now on the verge of making an important decision, whether to not buy reading glasses - and then risking more deterioration. or, buying reading glasses and then risking deterioration because I did something totally wrong to my eyes. I don't know what to do.
The experiment about the chickens makes sense. at first, the chickens only saw very far away. too far. and they developed, like you said, hyperopia. and then they suddenly saw from very close all the time - and developed myopia. But something's missing from the experiment. what if the chickens wore the +1 lenses once again after their were myopic? would their myopia improve? would it disappear? what would happen? that's the answer i'm looking for. Is there any kind of experiment such as this?
so presumably there are no myopic sunbathers?
snicker
BTW for any interested, myopia does occur in other animals
Your observation is an interesting one. I do not have the book in front of me, however, if I recall correctly he does mention numerous studies that compare children who spent more time in the sun vs children who spent more time indoors (but not necessarily indoors and watching video games, which is a key observation) where the children who spent more time in the sun, suffered from far less myopia than the children who spent more time indoors. Moreover, the amount of myopia they suffered from seemed to be directly proportional to the amount of time they spent out of the sun and indoors.
However, I would like to point out that key to this observation is that the study compares different groups of "children". When you say that "so presumably there are no myopic sunbathers?" while the observation might be correct, this would only apply to children who sunbathe, not adults, as myopia is clearly a condition which develops during the childhood / teenage years.
Also, according to Mr. Wood there is another factor which contributes to myopia in childhood, namely a diet dominated by lots of sugar and sweets. Lots of sun exposure merely serves as a way to inhibit/halt or reverse the bad effects of diet.
If that guy is hanging his hat on those ideas then respectfully that guy doesn't know squat, he's merely regurgitating small, weak studies that don't prove much of anything. There are several other theories regarding myopic development, but none have very much traction because it would appear that myopia, is not surprisingly, multifactorial.
I have read any study that matters when it comes to myopic development, the studies are weak, and it is easy to dispute them. If you want to know why, post the pubmed links to each study you are interested in and I will be happy to tell you why each one is lacking. That being true you should stop trying to think of things as so black and white, less declaratory. Instead of saying "..........that certain (specific) environmental / dietary triggers lead to the onset of myopia", what you should be saying (and thinking) is "........that certain (specific) environmental / dietary triggers MAY CONTRIBUTE to the onset of myopia". May contribute, because that's as good as it gets.
"May contribute" is a very ambiguous statement. If something prevents myopia from developing 5% of the time then this "something" will still "contribute" to the development of myopia, although in a very insignificant manner. If, however, 70-90%+ of all myopia can be prevented by removing (or adding) two or so simple triggers then these things also "contribute" to myopic development, but this time, in a very big and significant fashion.
Essentially, the argument I'm making here is of the latter type, not the former.
70-90%!!! wow, that's amazing. Worthy of the nobel peace prize......of course there's all that silly stuff like proof but I'm sure they will just read the book you referenced and that will be evidence enough
If you believe that, I wonder if you might be interested in a bridge that I have for sale.
yes it is a bogus claim
so if someone presents in the above fashion by prescribing low plus you believe you are halting or even reversing the progression of myopia?
quack, quack
(sorry couldn't resist)
you do realize there is no good data to support such an incredulous claim.
Don't just shoot me down. Back yourself up. Where's your data? Where's your argument for the contrary?
You should realize the concept you describe is far from novel and some very smart people (who actually know a thing or two about eyes) have already taken a look at that very thing.
As a layperson, you may find some fun in trying an intuitive solution to some of these eye problems, but as an otherwise learned individual you should realize that you may as well be walking on Mars when you make any claims about what is, and is not, true regarding the eye.
If that guy is hanging his hat on those ideas then respectfully that guy doesn't know squat, he's merely regurgitating small, weak studies that don't prove much of anything. There are several other theories regarding myopic development, but none have very much traction because it would appear that myopia, is not surprisingly, multifactorial.
70-90%!!! wow, that's amazing. Worthy of the nobel peace prize......
If you believe that, I wonder if you might be interested in a bridge that I have for sale.
none of those studies proves anything (btw, 2 of the 4 listed are the same study)
Meanwhile there are several larger actual human studies that have already looked at peripheral defocus, near adds, medications (pirenzipine), lifestyle, contact lens, etc,etc,etc.
BTW we all want to solve the riddle of myopia, its a major risk factor in a pretty long list of bad problems that can occur in the eye. Lots of really smart, well educated, highly experienced people from around the world working on this problem. There are literally whole populations that suffer from these problems far more frequently then in the US. Perhaps with enough education and passion you might find yourself in a position to meaningfully contribute
This is a pointless discussion, it's obvious you are a lay person who doesn't know the first thing about myopia or what research has already been done, what is currently being done, and what is planned for the future. The small animal studies that you posted notwithstanding . Try and relax, enjoy your schooling, you have a long way to go.
yep you nailed it, I've been in practice for 15yrs and I don't know anything about myopia.
You on the other hand appear to have figured it all out just by searching medline
You mean you don't already know what human studies have been done on this topic?......gosh, that's weird....... you better type that into google and get to work (here's a hint, try the National Eye Institute, which is one of the many centers of the National Institute of Health which in turn is an agency of the US Dept of Health and Human Services). Regardless, I'm sure the other readers are thankful that you shared your expertise with all of us. I know I've had my fill, so I'll be moving on from this thread.
OK, now here are some facts for you to look at:
1. http://www.ncbi.nlm.nih.gov/pubmed/22323488
The study showed that when using + 4.0 D lenses over a period of 12 days for only 1 hour per day myopic progression increased by only 0.7 D instead of 3.6 D (animal study). That's 2.9 D difference through positive lenses during a period of 12 days.
2. http://www.ncbi.nlm.nih.gov/pubmed/20592235
In this study researchers imposed optical defocus on a group of 28 adults (humans) with +3 D, - 3 D lenses and control group (see study for exact details).
The results I quote:
"Significant changes in optical axial length occurred in human subjects after 60 minutes of monocular defocus.."
3. http://www.iovs.org/content/44/7/2818.full
In this study chicks wore +6 and +1o lenses for varying amounts of time. Here are the results (I quote):
"RESULTS. Wearing positive lenses for as little as 12 min/d (six periods of 2 minutes) with unrestricted vision the remainder of the time caused eyes to become hyperopic and reduced the rate of ocular elongation. These effects also occurred when the scene viewed was beyond the far point of the lens-wearing eye and thus was myopically blurred. Even when chicks wore negative lenses for the entire day except for 8 minutes of wearing positive lenses, the eyes compensated for the positive lenses, as though the negative lenses had not been worn."
4. http://www.journalofvision.org/content/8/3/1.full
Clearly shows that constant +4 D lens wear produced +6.9 hyperopia - again reinforcing the notion that positive lenses can alter the growth of the eye in hyperopia direction.
When your done with the studies I referenced above, let me know I have more for you.
Good luck
In reversibly reshaping the cornea OrthoK creates a mid peripheral corneal curve that induces peripheral blur on the myopic retina. Peripheral blur has been shown to successfully control /slow myopic progression. So for as long as a patient with progressive myopia uses OrthoK, they should successfully slow/ ****** the progression of pathological retinal changes. This most likely will cease with cessation of OrthoK as the peripheral blur will no longer be induced by reversible corneal reshaping.That doesn't 'reverse' myopia. It temporarily reshapes the cornea.
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Yes, it corrected my vision. I don't know why the medical profession claims nearsightedness can't be corrected , it most certainly can.Some says it can reverse myopia, is this a bogus claim?
NO, it has worked for me. Could you please cite your "proof" that it is false?while it may sound "logical" to you, that premise has already been shown to be false.
Ther is no genetic predisposition to develop myopia.,If someone is genetically predisposed to develop myopia there is no way to stop it. I'm not claiming I can do that. You might be able to slow it down a little bit, but genetics tend to win out on a lot of things.
Also, I know of the clinic at SUNY and I know the doctors who work there, we've actually talked a few times. They've even referred a few patients to my office before for vision therapy for other disorders. Treating myopia is like less than 1% of what my office does. We focus on other things like strabismus and amblyopia. You should ask your docs that work in that clinic what they think of the names I mentioned a few posts up and let me know what they say, I'd be interested to hear it.
It does work, it worked for me. Vision doctors just repeat what they have learned in textbooks and it is all a big scam to make money. It costs very little to buy reading glasses. One thing though, if the glasses are too strong or your current vision is worse than 20-40 then they won't work because at some point your nervous system decides that something is actually blurry and it will not try to focus. You need a lens that creates a slight blur that will make your eye focus at that level of correction. If your nearsighted prescription is very strong then you need to get a lower prescription with which you can still manage to focus something that is blurry. You then need to work your way down. If your sight is in the 20-40 range then a 1.25 or a 1.5 strength in reading glasses will work for you. You may also use the positive , reading glass lenses over your contacts for nearsightedness and work that way.If myopia is induced, in some percentage of the population, by long term near work, and if that is proven by research, then...
looking at far distances and stopping the near work, can halt myopia progression. (obviously, if there is such a research noted above, then if a person was not doing the near work from the first place he would be less myopic) and..
plus lens makes you focus at the far distance while actually doing the near work. (According to my understandings)
it's that simple! it's extremely logical theory. why wouldn't it work?
if there is a large scale research already attempted this, then please show me.
another way of putting this is replacing strings :
if there is a research proving some percentage of the population becomes myopic because of near work, then that percentage can X entirely in order to halt myopia.
now, you can replace X with one of the below because they're all equal :
X = "stop near work" = "use plus lenses" = "focus far" = "move the screen away" = "be outside"
It does work, it worked for me. Vision doctors just repeat what they have learned in textbooks and it is all a big scam to make money. It costs very little to buy reading glasses. One thing though, if the glasses are too strong or your current vision is worse than 20-40 then they won't work because at some point your nervous system decides that something is actually blurry and it will not try to focus. You need a lens that creates a slight blur that will make your eye focus at that level of correction. If your nearsighted prescription is very strong then you need to get a lower prescription with which you can still manage to focus something that is blurry. You then need to work your way down. If your sight is in the 20-40 range then a 1.25 or a 1.5 strength in reading glasses will work for you. You may also use the positive , reading glass lenses over your contacts for nearsightedness and work that way.
You mean you don't already know what human studies have been done on this topic?......gosh, that's weird....... you better type that into google and get to work (here's a hint, try the National Eye Institute, which is one of the many centers of the National Institute of Health which in turn is an agency of the US Dept of Health and Human Services). Regardless, I'm sure the other readers are thankful that you shared your expertise with all of us. I know I've had my fill, so I'll be moving on from this thread.