There are two causes for the increasing degrees of shortsightedness: generally speaking, in one or two years, vision of children will gain fifty to seventy-five degrees; it is also common for adults gaining the same degrees in two or three years. There are usually two causes of deepening myopic degree.One is pathological myopia, which is internal lesions inside eyes, inherited, and you can see this kind of myopia grows rapidly and continues to deepen. If the degree of myopia increase by more than 100 degrees within one year,, or even up to 200 degrees or higher, or the total degree reach 2000 degrees. It is likely to be a pathological myopia.
There is no effective method to cure pathological shortsightedness nowadays. At present, the main treatment for scleral staphyloma is 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 hand, Shortened the anteroposterior diameter of the eyeball. To a certain extent, it can decrease the degree of nearsighted.Neglecting the eye hygiene and incorrect habits of using eyes are the other reasons. For example, the lighting is too bright or too dark, or using eyes for too long. And also timely medical treatments are not applied when trichiasis, ptosis, keratitis and other eye diseases exist.
There is rules to wear eyeglasses : improper wearing would worse the myopia degrees. Once it is found that the current glasses 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 Young people under the age 12 years old had better to take optometry once six months or a year, and use mydriasis optometry which can make the ciliary muscle of the eyes to be fully relax. The removal of inaccuracy of an opthalmic test caused by pseudomyopia as well as the timely wearing of suitable eyeglasses frames to remedy pseudomyopia should also be emphasized. Generally speaking, adults under forty years old
If this is the first optometry to select glasses, also need to mydriasis optometry, and at the same time do a detailed fundus examination to remove retinal disease, crystal defects and other diseases. Take care the eye-sanitation: for my part, it is important to save the time to use our eyes. Because the human eyes are in the growth and development period, looking at the near is limited, if consumption exceeded the limit,it may occur pathological changes,thus occurs myopia.
Some one compares eyesight to flashlight battery. The more times it is used for a short time, the longer life span it has. A long-time application at a time will lead to the shortening of operational life because of acute consumption. Therefore, the eyes should be given reasonable time of rest.
You should try to do the followings: 1. A day to see the time, the cumulative time during a day spent in seeing something near had better not to be more than six hours. 2. In the learning process, you should do listening as much as possible instead of loo 3. Your desk should be placed in front of the window without shelter. 4. The desk lamp should be incandescent lamp between twenty-five and forty watt, the light shouldn’t shine direct into your eyes. 5. When you are using the computer, keep a right distan
