There are two reasons deepening myopia. Generally speaking, it is common for children's myopia degree to rise 50-75 degrees within one or two years while adults’ degree to rise 50-75 within two or three years. Usually there are two reasons causing myopia deepening. One is pathological myopia. This disease occurs in the eyes, and is genetic, and shows continual myopia deepening and rapid progress. And if the yearly increase of strength exceeds one hundred degrees or even two hundred degrees, or accumulated increase of strength reaches two thousand degrees which then becomes high myopia, one may suffer pathological myopia.
As for pathological myopia, there are no effective treatment methods at the present time. If there is a symptom of posterior scleral staphyloma, the most common treatment method is posterior scleral reinforcement. This surgery is make use of wide fascia to hold on the posterior sclerotic, on the one hand, it can strengthen support power of the posterior sclerotic, in order to prevent swollen posterior sclerotic continuing to grow.
On the other side, it shortens the ocular biometry, to some extent, it could reduce the degree of myopia. Another reason is sanitation-carelessness and incorrect eye-using habit. For example, too bright or too dark illumination, over-work of eyes and delayed treatment of such eye diseases as trichiasis, ptosis and keratitis.
There are special points that should be paid particular attention to in buying eyewear. Once it is found that the current eyeglasses online can not meet the requirement of eyesight, a timely examination should be conducted in the ophthalmology department of regular hospital, after which the remediation of the strength of myopia, the changing for Adolescents under twelve years old had better have an opthalmic test every half a year or every one year. Besides, mydriasis optometry should be applied in order to give a full relaxation of ciliary muscle in the eye. The incorrect optometry caused by eliminating pseudomyopia should be corrected by wearing cheap eyeglasses timely. In general,the adults with age of no more than 40-year-old.
If you are the first time to optometry, mydriasis test is also needed. At the same time, to conduct a detailed fundus examination to rule out retinal disease and conditions such as crystal defects. The emphasis on eye hygiene is of great importance: as for how to use eyes correctly, the author thinks that "eye conservation" is very important. It is because during the growth and development of human eyes, the time is limited to look at something nearby. If you exceed the limit, it is likely to have pathological change, thus occurring myopia.
Someone compared vision to battery in the flashlight, the shorter you used it at one time, the more times you can use it, the longer its life is. If you use it for a long time at one time, you will shorten its life because of excessive consumption. So, you should leave enough time for your eyes to take a rest.
You Should try to do the following: First, you see something near the time, the cumulative time is better not more than six hours.Second. In the learning process by listening instead of looking as much as possible you can reduce the load for the eyes. 3. Desk would be better placed the window with no objects blocking. 4. If it is incandescent lamp, preferably 25 to 40 watts, the light should not directly shoot the eyes. 5. When operating computer, maintain sufficient distance and correct posture. 6. Do
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