I believe that many people do not understand what myopia is, they only know that their eyesight has deteriorated. According to experts, if the degree of myopia is below 300 degrees, it is considered mild myopia, and if it is over 600 degrees, it is considered severe myopia. 1. How many degrees of myopia is considered true myopia has always been a mystery. Some people think that if you can't see things far away clearly, you are myopic. There are different opinions about the specific degree. But no matter what the degree is, if you can't see things far away clearly, you must pay more attention to protecting your eyes. This means that you may really be myopic. So, how many degrees of myopia is considered myopia? How many degrees of myopia is considered? When you look at things, parallel light rays enter the eye, are refracted by the eye's refractive system, and the focus falls behind the retina, so you can't see distant objects clearly. This is myopia. Usually the biggest symptom of myopia is that you can't see clearly at a distance, but you can see clearly at close range. Generally, myopia within 300 degrees is called mild myopia, 300-600 degrees is called moderate myopia, and above 600 degrees is called high myopia. 2. Usually, 1.0 or 5.0 is considered normal vision, and vision above these two standards is good vision. The degree of myopia does not refer to those below these two standards, but those below 4.8 are myopia. In the vision chart, 4.8 vision corresponds to 150 degrees, which can be converted into 150 degrees of myopia. However, this number is not absolute, and many factors will affect it. When the degree is above 300 degrees, it is true myopia. 3. What degree of myopia is considered myopia? Many children and adolescents may have pseudomyopia, so it cannot be said that they are myopic when they cannot see distant targets. Their vision needs to be tested, including mydriasis refraction. Young children have stronger accommodation abilities, so the possibility of pseudomyopia is also greater. 4. As long as the vision is lower than normal, it is considered myopia. Methods to prevent myopia in children: develop correct eye habits, sit correctly, sit not too close, and the total time of using computers and TV should not exceed 1 hour a day. Eat less sweets. Do more outdoor sports. |
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