1. What happens if the illness is serious?
Serious illness can change the shape of eyes, such as goldfish eyes.
If myopia is cured, can lens elongation be cured?
Not necessarily, it needs your long-term maintenance and surgery to correct it.
3. What are the effective methods to treat true myopia at present?
Method 1: Wearing glasses is also a kind of treatment.
Method 2: do surgery.
(1) When talking about the method of thoroughly treating myopia, Director Cao of the Department of Ophthalmology of Nanning Second People's Hospital said that at present, how effective some products claim to treat true myopia in advertisements is actually misleading and even fraudulent. At present, LASIK (excimer laser in situ keratomileusis) is the safest and most effective treatment for myopia in the world. Generally speaking, after such treatment, the vision of myopia patients can be restored.
Doctors from the Optometry Center of Guangxi Medical University and the Optometry Center of the People's Hospital of the Autonomous Region also took the lead in using LASIK (excimer laser in situ keratomileusis) to treat myopia.
(2) At present, there is no effective method to cure juvenile true myopia. The treatment of true myopia is PRK surgery, but it is only suitable for adults, and it also needs the relevant conditions of surgery. After juvenile myopia, the myopia degree will increase at an average rate of 50 degrees to 100 degrees per year, from low to medium height. The harm of myopia mainly occurs in the middle and high epiphysis, so it is very necessary to control the development. From this perspective, controlling the occurrence and development of myopia is also an active and effective treatment.
The following is a detailed explanation, I hope it will help you. I wish you a speedy recovery and good health!
People often ask on the forum: Will the eye deformation caused by wearing glasses for a long time recover after the operation? Generally speaking, doctors can't recover from pathology, because myopia is caused by eyeball deformation, which is caused by the change of the length of the paraxial axis. Surgery will not change the pathology of this eyeball, so the eye condition before surgery is still the same after surgery and will not change. This view can easily make some beauty lovers miss the opportunity of surgery. Some people further believe that eye deformation caused by wearing glasses is only an optical illusion. This "illusion theory" can be seen everywhere on the Internet, and the most interesting thing is the website of the optical company. But I am also a nearsighted person, and my friends have had surgery. I also had surgery some time ago. Life experience tells me that it is not so easy to draw conclusions.
Of course, the doctor's professional explanation is correct, but from the perspective of myopia patients, I think that the "deformation" that myopia friends care about is not all the deformation explained by doctors. The "deformation" explained by doctors exists, but it usually has little effect on the appearance of eyes, because few people really reach the level of "goldfish eyes". Imagine why these people feel deformed after taking off their glasses, but they don't feel deformed after wearing them. Is the axial length of eyeball normal after wearing glasses? Of course not. Why do photographers often suggest that people who wear glasses wear an empty frame without lenses when taking pictures, which not only conforms to their true appearance, but also will not be affected by the reflection of lenses? In my opinion, myopia patients really care about "deformation", because wearing glasses for a long time (especially rimmed glasses) is flat from the eye socket to the sides of the bridge of the nose. After taking off the glasses, people will feel that the whole eye area does not have the outline it should have, and it may even be quite ugly (this situation will be aggravated if the myopic ball protrudes in different degrees), but once they wear the glasses, they will not feel deformed because the flat part is "filled". This is why wearing glasses for a long time in shallow myopia will make people feel that their eyes are deformed, while deep myopia will not make people feel "deformed" if they don't wear glasses often. In addition, many people wear very light rimless glasses, the lens does not contact with the orbit, but the nose pad contacts with the bridge of the nose. However, because the frame is very light and the pressure is very small, even if it is worn for a long time, it will not make people feel deformed. The "deformation" mentioned above is actually reversible. When you don't wear glasses for a long time, the outline of the frame will gradually recover due to the elasticity of human skin itself. Therefore, what we call "eyeball deformation" as non-professional myopia patients is actually "eyeball contour collapse", which is different from the professional explanation of "eyeball deformation" by doctors. Just because myopia is a pathological change of the eyeball, it is one-sided and unreasonable to easily deny the view that wearing glasses will cause eye deformation in people's long-term experience.
I have been nearsighted for more than ten years. It took me about two years from wearing glasses to "eye deformation", but the degree was not high during that time, only about 200 degrees. Then myopia developed. Now my eyes are 500 degrees, and "deformation" has stopped. When I took off my glasses and observed them carefully, my eyes were only slightly prominent, but the skin around the whole eyes was obviously "flattened" until the sides of the bridge of the nose. As soon as I take off my glasses, my eyes are hazy and loose (many people with "deformed eyes" have this visual appearance). Similarly, my other friend is 800-degree nearsighted and can't live without glasses, but he doesn't feel nearsighted because his appearance has not changed with or without glasses, because he wears shallow rimless glasses. In fact, if you look closely, it is obvious that his eyes are quite prominent, which shows that people often say that they are long. Let me give you another convincing example. A friend of mine had laser surgery ten years ago, and the degree was not too deep. At that time, as soon as she took off her glasses, people felt that her eyes were "deformed" and particularly ugly, but she recovered completely after one or two years. This is definitely not a visual psychological effect. This difference can be seen from the photos she took during that time. It is obvious that she changed from "deformed" to "not deformed". Of course, the deformation of exophthalmos that affects the beauty of the eyes is completely irreversible, and the same is true after surgery, because myopia surgery has not changed the pathological state of the eyes, but personally, this situation is relatively rare. The reason for the above-mentioned "eye contour collapse" is not very serious, and it usually only plays an auxiliary role in deformation, unless it is extremely high myopia, it will become a "dominant role", which is what we call a "dominant role".
The above views are only personal views. Welcome everyone, especially professionals and friends with similar experiences to discuss!
2. The lack of trace element chromium in the body is closely related to the formation of myopia. Chromium mainly exists in coarse grains, vegetables and fruits. Some parents give their children some refined food for a long time, which causes the change of blood osmotic pressure caused by chromium deficiency in the body, which in turn leads to the change of osmotic pressure of eye lens and aqueous humor. When the osmotic pressure of aqueous humor is lower than that of the lens, aqueous humor will penetrate into the lens through the lens capsule, which will make the lens bulge and increase diopter, thus forming myopia.
When the eyeball lacks calcium, the elasticity of sclera decreases, the function decreases, the liquid pressure in the lens increases, the anterior and posterior diameter of eyeball becomes longer, and the cornea and ciliary body change slightly at the same time, which is easy to cause axial myopia.
Indications for surgical treatment of myopia: 18 years old or older; Myopia diopter is more than 2.50D; Wear glasses to correct normal vision; There is a need to take off glasses; No active keratopathy or keratoconus; No history of diabetes or collagen disease.
As mentioned above, myopia can be treated by acupuncture, drugs and other methods, but the more reliable treatment is to wear myopia glasses. However, whether wearing glasses or contact lenses, there are some insurmountable shortcomings.
Can you correct your vision through surgery? In the 1980s, some advanced countries in the world successively carried out operations to treat myopia-radial keratotomy, or PRK for short. This surgical method originated in Japan. After that, ophthalmologists in the former Soviet Union and the United States improved and perfected the surgical methods and equipment, greatly improved the accuracy of radial keratotomy, accumulated a lot of clinical experience, and achieved good therapeutic effects. Especially for young adults over 20 years old, the success rate of surgery is over 95%. For high myopia of 6.00D- 10.00D, most of them can take off their glasses, and for high myopia above 10.00D, the degree of myopia can also be reduced. It also has a certain effect on myopia astigmatism. Radial keratotomy has opened up a new way to treat myopia. Myopia surgery was carried out late in China. After radial keratotomy spread to China in the mid-1980s, it became popular all over the country, and hospitals of all sizes went into battle, including foreigners from Russia. Due to the lack of surgical instruments and clinical experience, postoperative corrected vision is not ideal and there are many complications. In recent years, some large hospitals in China have purchased advanced surgical instruments-gold diamond knives from abroad. This kind of knife is not only sharp, but also thin (only 0. 1 nm), with scale display, and the depth of incision can be adjusted at will. Postoperative corneal scar is thin and uniform in width, which has less chance of irregular astigmatism. Therefore, it is very popular with myopia patients, especially those with high myopia.
In addition to radial keratotomy, there are many new surgical treatments for myopia abroad, and some large hospitals in China have also carried out these operations one after another.
(1) Topkeratology: Use allogenic cornea, grind different diopters on a special machine tool after freezing treatment, then stratify the central part of the patient's cornea, embed the special corneal lens into the corneal lamina, and sew around to achieve the purpose of correcting myopia.
(2) Corneal grinding: using your own cornea, do lamellar resection from the center, treat the excised corneal tissue at low temperature to make it hard, then grind it on a finishing lathe as needed to achieve the required diopter, and then sew it back to its original position.
(3) Laser keratectomy: excimer laser (wavelength 193 nm) radial keratectomy. The incision is more precise and accurate, the correction effect is better, and the surgical complications are greatly reduced.
(4) Posterior scleral reinforcement: This operation uses medical silicone sponge, allogenic sclera or fascia lata as protection and reinforcement materials to reinforce the fused sclera, support the posterior pole of eyeball, prevent the posterior pole from expanding and the axial length from lengthening, and reduce myopia to some extent. At the same time, the formation of new blood vessels after operation can enhance the blood circulation of choroid and retina, excite visual cells, activate bioelectricity and improve vision. This operation is suitable for controlling the progressive extension of the axial length of high myopia, especially for teenagers with high myopia whose axial length is more than 26 mm and their myopia diopter is deepened and developed by more than 1.00D every year.
Surgical complications Myopia surgery has solved the problem of glasses fitting for high myopia to a certain extent, and also met the needs of people engaged in special occupations, which has been welcomed by myopia patients. However, no matter how simple and safe the operation is, it is by no means foolproof. Moreover, myopia surgery is not a very mature surgery, and many aspects need to be improved. At present, the main surgical complications are:
(1) Intraoperative corneal perforation complicated with cataract and bacterial endophthalmitis;
(2) Corneal ulcer, delayed wound healing and corneal endothelial injury;
(3) Irregular astigmatism caused by postoperative scar and epithelial cyst seriously affects vision;
(4) Residual myopia, anisometropia, astigmatism or overcorrection.