The treatment of myopia can be categorized into surgical and non-surgical treatments. (1) The best treatment for myopia - wearing a pair of suitable glasses. Myopia patients have different degrees of reduction in distance vision, see a few meters away from the scene hazy, go to the shopping mall, can not see the display of goods and price tags; walking on the road, can not identify the opposite side of the acquaintance, do not greet people, was considered to be a pose and ignored people; students see the wrong blackboard exercises, do the wrong homework. All these things make myopic people suffer a lot. To get out of this hazy world, the only way is to wear glasses. However, there are some myopic patients who would rather not be able to see things in the distance, squint their eyes in a hurry, but also do not want to wear glasses. The reason is that it is inconvenient for young people to wear glasses, and they are afraid of touching and falling. Some people think that wearing glasses is unattractive and hinders their appearance. They are afraid that the more glasses they wear, the deeper their prescription will become, and that they will never be able to take off their glasses, so they put them in their pockets and only wear them when they are looking at a faraway place. In fact, this is not correct. When you are nearsighted, you cannot see distant objects because the parallel light rays entering your eyes cannot be focused on the retina. Although it is clearer to see things at a close distance, it is easy to cause eye fatigue when your eyes are too close to the books when you are studying. Children with myopia, the performance is not lively, on the subject of attention is not focused, can not see the blackboard learning performance decline How can I get a pair of accurate, comfortable glasses? Teenagers suffering from myopia, prescription glasses must go to the hospital to check the eyesight, dilated optometry. Pupil dilation optometry is also known as objective optometry, is the application of drugs (such as 2% after Matropine, 1% atropine eye drops, etc.), so that the ciliary muscle is completely paralyzed, the pupil dilated, the loss of regulation of the situation for optometry. In this way, the interfering influence of regulation and the pseudomyopia component caused by it are excluded, and the refractive state of the eye is determined objectively and accurately. Then, the eyeglass lenses are sharpened according to the eyeglass prescription determined by the eyeglass examination, and the sharpened lenses are mounted on the eyeglass frames that have been selected in advance. Usually, a retest is conducted at a certain time after the dilated eye examination. Observe whether the refractive power of the lenses tested by the objective optometry has any abnormal discomfort such as dizziness, nausea, blurred vision, distorted vision, or unsteady walking. Through retesting, organically combining the objective results of dilated optometry with the subjective results of post-testing in a consistent manner to maximize the high quality of eyeglasses fitting, so as to achieve the effect of the best correction of visual acuity. Some young people are not willing to dilate the pupil optical examination, afraid of dilating the pupil after the eyes uncomfortable, can not see the near things. In fact, this worry is superfluous. Pharmacology pupil dilation optometry drugs used (such as atropine, post-matropine, etc.) for the anticholinergic drugs. Its role in the pupil dilation muscle and ciliary muscle paralysis and relaxation, manifested as pupil dilation and regulation of paralysis, the role of this drug is only temporary, as long as no longer continue to use, after a certain period of time, the paralytic effect of the drug will naturally disappear. If you don't use dilated optometry, due to the ciliary muscle, lens regulation, may be tested too large or false myopia results, so, young myopia should be dilated optometry, selection of appropriate myopia glasses. Only when the following conditions exist: (1) Examination found shallow anterior chamber, high intraocular pressure or the high limit of normal value, suspected glaucoma patients, should wait for a detailed history, a clear diagnosis before optometry. The application of dilated optometry is absolutely contraindicated in patients with glaucoma. (2) Severe lens, vitreous clouding, corneal white spots, due to the difficulty of examination, dilated optometry is meaningless. (3) Severe pupil adhesion, the pupil can not be normally dilated after the application of dilating drugs, there is no need to dilate the pupil optometry. (4) People over 40 years of age, due to the weakening of ciliary muscle regulation, generally no longer dilated optometry. How many years, cure myopia, remove glasses, become the majority of myopia and wear glasses because of myopia people's urgent wish, looking forward to the nemesis of myopia and the arrival of the gospel, to fulfill a dream of removing glasses. It is in this context, some cater to the parents and young people eager to remove the glasses of the mentality, so that the so-called effective rate of up to 95% or more of the therapeutic appliances and drugs will continue to come into being. Methods that have been tried and tested to treat myopia include acupuncture, plum blossom acupuncture, auricular acupuncture, electroacupuncture, low-frequency electric current, ultrasound and laser irradiation of acupoints, etc. These treatments are very effective in preventing myopia. These therapies are effective in the prevention of myopia and the treatment of pseudomyopia, but they are not effective in the treatment of true myopia. In recent years, countless medical personnel engaged in ophthalmology and pharmacy experts have conducted useful researches on the treatment of myopia, and formulated some medicines for the treatment of myopia, such as Summerless Eye Drops, 1% Dibazole Eye Drops, Salvia Miltiorrhiza Eye Drops, Safflower Eye Drops, Myopic Eye No. 1 and No. 2 Eye Drops, etc. These eye drops can be used to a certain extent to prevent and treat pseudomyopia, but have no definite curative effect on true myopia. These eye drops can relieve ciliary muscle spasm to a certain extent, and are effective in mild myopia, especially juvenile myopia and pseudomyopia. The visual acuity of a part of patients can be improved, but the efficacy is not consolidated. In short, the effect of drug treatment of myopia is not satisfactory at present. As for the magnetic therapy glasses, vision care instrument, vision care device, vision correction instrument, physical therapy mirror, eye mask, mirror and other myopia treatment apparatus can be described as a wide variety of 2009-1-1 16:49 Responses Volunteer Eraserhead 67 fans 2 floors more, advertisements are frequently seen in a variety of publicity media, the advertisement is extremely exaggerated, and what's more, some of them are also crowned with a national patent, very tempting. So that many people with a try to see the psychological fall a ride money and ride time, and finally have to wear glasses. (2) Surgical treatment of myopia Indications for myopic surgery: age 18 or older; myopic refraction of 2.50D or above; normal vision with corrective lenses; the need to remove glasses; no active corneal lesions or conical cornea; no history of diabetes or collagen disease. As mentioned earlier, myopia can be treated with acupuncture, medication, etc., but the more reliable treatment is still wearing myopia glasses. However, both frames and contact lenses have their own shortcomings that are difficult to overcome. Is it possible to use surgery to correct vision? In the 1980s, some advanced countries in the world successively developed the surgical treatment of myopia - radial keratotomy (PRK for short), which originated in Japan, and was later improved by ophthalmologists from the former Soviet Union and the United States in terms of the surgical method and instrumentation, which greatly improved the accuracy of PRK and accumulated a lot of clinical experience, making it possible to correct myopia by surgical means. A large amount of clinical experience has been accumulated and better treatment results have been achieved. Especially for young adults over 20 years old, the success rate of the surgery for mild and moderate myopia is over 95%. For high myopia of 6.00D-10.00D, most of the spectacles can be removed, and for high myopia of more than 10.00D, the myopia can be reduced. It is also effective for myopic astigmatism. Radial keratotomy has opened up a new way for the treatment of myopia. China's myopia surgery is carried out late, about the mid-80s, radial keratotomy to China, it will be popular all over the country, large and small hospitals have to hang on, including the Russian foreigners invited to the knife. Due to the lack of surgical instruments and insufficient clinical experience, the postoperative corrected vision was less than ideal and there were many complications. In recent years, some large hospitals in China have purchased advanced foreign surgical instruments - gold diamond knife. This kind of knife is not only sharp, and the blade is thin (only 0.1 millimeters), and there is a scale display, you can adjust the depth of the incision. The postoperative corneal scar is fine, uniform in width and depth, and has less chance of causing irregular astigmatism. Therefore, it is very popular among myopic patients, especially those with high myopia. In addition to radial keratotomy, many new methods of surgical treatment of myopia have appeared in foreign countries, and certain big hospitals in China have also carried out these surgeries one after another. (1) Surface Keratoscopy: Using allogeneic cornea, different refractive errors are ground out on a special machine tool after cryoprocessing, and then the central part of the patient's cornea is separated from the plate, and the special corneal lens is embedded into the corneal plate, and the surrounding suture is closed, so as to achieve the purpose of correcting myopia. (2) Keratomileusis: Using the patient's own cornea, the corneal tissue is removed from the central part of the cornea by laminar resection, the corneal tissue is hardened by cryogenic treatment, and then ground on a fine lathe according to the need to achieve the required refractive error, and then sewn back to the original place. (3) Laser Keratotomy: Using excimer laser (wavelength of 193 millimeters) to perform radial keratotomy. This makes the incision more delicate, accurate, better corrective effect, and greatly reduces surgical complications. (4) Posterior Scleral Reinforcement: This surgery applies medical silicone sponge, allograft sclera or broad fascia as protective reinforcement materials to reinforce and fuse the posterior sclera to support the posterior pole of the eye, preventing the progressive expansion of the posterior pole and the progressive lengthening of the eye axis, and to a certain extent, reducing the degree of myopia. At the same time, neovascularization is formed after the surgery, which enhances the blood circulation in the choroid and retina, stimulates the optic cells, activates the bioelectricity, and improves the visual sensitivity. This procedure is suitable for controlling the progressive lengthening of the eye axis in high myopia, especially important for adolescents with high myopia whose eye axis length exceeds 26 mm and whose myopic refractive error deepens and develops more than 1.00 D per year. Surgical Complications Myopic surgery has been welcomed by myopic patients as it solves the problem of wearing lenses for high myopia to a certain extent and also meets the needs of people working in special occupations. However, no matter how simple and safe the surgery is, it is by no means foolproof. Moreover, myopic surgery is not yet a very mature surgery, and many aspects still need to be improved. Currently, the main surgical complications are: (1) intraoperative corneal perforation complicating cataract and bacterial endophthalmitis; (2) corneal ulcers, delayed healing of the incision and corneal endothelial damage; (3) postoperative scarring, epithelial cysts, resulting in irregular astigmatism, which seriously affects visual acuity; (4) residual nearsightedness, refractive error, astigmatism or overcorrection
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