No, that's not true. Exercise can only relieve the spasm of accommodation, which causes very weak myopia (functional myopia). Your degree of myopia (organic myopia) will not improve by any diopter by any gymnastics. Moreover, for an absolutely accurate answer, it is necessary, as a result of diagnostics, to find out which specific mechanism of disturbances brought your eye into a myopic state, because there may be several reasons. This includes lengthening the axis of the eye, increasing the refractive power of the cornea or lens (including keratoconus or myopizing cataract), forward displacement of the lens due to various possible causes, etc. Only after finding out the exact cause or a combination of different reasons can you accurately determine the possibilities, ways and predictions of improving the vision of your eyes. BUT this is definitely not gymnastics. It is useful, but it will definitely not improve your vision.
To answer your question, you need to understand what changes in the eye cause myopia and whether they are reversible.
Myopia is a condition of the eye when the image, when looking into the distance, is not formed on the retina, as it should be, but in front of it, as a result of which distant objects are blurred. Simply put, there are two possible causes of myopia, and only one of them can exercise.
If you are a teenager or a child and have noticed visual impairment recently (3-6 months or less) - most likely, there is a reversible overstrain of the ciliary muscle. If you are an adult and your eyesight has deteriorated sharply after prolonged work - too. If vision gradually deteriorated in childhood or adolescence and has been poor for a long time, then this is almost certainly the growth of the eyeball in length, which cannot be reversed.
To find out exactly which of the reasons is in your case, you need to visit an experienced doctor. After that, it will be clear whether the exercises will help you (and also whether you need to wear glasses, when to do this, and so on, but this is no longer relevant to the topic of the question :).
## Alternative theories
Usually, the healing of myopia with the help of exercises is promised by adherents of alternative theories of the eye device. According to them, the point of view of "official medicine", which I presented above, is incorrect. "In fact" the eye works on the principle of a camera: supposedly, in order to focus on a close object, the outer muscles of the eye extend the eyeball in length. This means that there is no irreversible growth of the eye in length. The muscles are simply overstrained and hold the eye in an extended position, but through exercise anyone can relax them and restore vision.
It sounds inspiring, but over a hundred years of existence of this theory, more than enough information has accumulated to recognize it as untenable. Currently, people exploit it to inspire people with hope, and then arrange paid seminars to restore vision and sell dietary supplements. For some, this really helps: for example, for those whose myopia was caused by overextension of the ciliary muscle (see above), exercise can relax it and restore vision. But this is not the merit of alternative medicine: such people would be cured by an ordinary doctor.
SometimesAlternative medicine advocates also say that all these muscles are overstrained due to wrong views of the world, a tense mind, mental problems. I have come across stories and even books from people who, with the help of working on their worldview, various "positive attitudes" and self-hypnosis, allegedly restored their sight, but this does not agree with scientific data (at least the fact that there is no mechanism that would allow reversing eye growth), that is, it is either quack and fraud, or an example of a very pronounced placebo effect. I don't know what it really is - decide for yourself :)
## What to do
So, exercises help not everyone restore vision, but it is important to understand that they are useful in any case for other reasons: improve blood circulation, relieve tension, help the eye function longer without problems, reduce the risk of complications of myopia, can reduce the rate of vision decline. Therefore, if you have time, you can start to deal with them: even if it does not improve vision, it will still be useful.
And if you have a lot of time and a desire to test everything for yourself, you can try to conduct an experiment: try to believe in one of the alternative theories (if you can do it after reading now), according to which it is possible to heal myopia, find some topical book, start doing exercises, all sorts of positive attitudes and other unscientific things - there is a chance that the placebo effect works here and your vision will really get better. But I can't really believe it :)
And don't forget to visit your doctor at least once a year. With myopia, the retina is stretched and blood circulation is impaired, which can lead to very unpleasant complications such as retinal detachment and complete loss of vision. Do not be afraid of this, you have an average degree of myopia, with regular diagnosis, complications can be avoided. Just remember to see your doctor. And here, by the way, another plus from exercise: blood circulation improves -> metabolism in the retina improves -> the risk of complications decreases.
Physiotherapy is for some reason very common in our country, no, it's good, but people think that it replaces surgery or treatment with pharmaceuticals.
"Vision minus 4" does not tell the doctor anything. This is the functional state of the eye and nothing more. That is, these words do not indicate the cause of the violation, which means they do not talk about how to treat it. There are things that are irreversible in principle, but which can be stopped by treatment - glaucoma, for example. Eye gymnastics (including) is indicated in this case, but firstly under the guidance of a doctor, and secondly as an auxiliary method of treatment.
I do not know what disease you have, are you afraid of surgery or the operation has already taken place, but to be honest, there is nothing so painful in eye operations. They are bloodless and do not last very long.
Please do not start your illness and heal normally. You may lose your eyesight completely and this cannot be corrected.
The eye is essentially a set of muscles. Gymnastics helps to prevent and treat some kind of problems associated with insufficient strength and flexibility of these muscles - helping against myopia and farsightedness (when the eye can only look close or far and cannot focus quickly). However, no amount of gymnastics will help against damage to the retina, lens or bottom of the eye.