Answers to some questions you want to know about high myopia

Abstract: if it is confirmed that it is high myopia, although it is a preschool child, it is also necessary to match glasses for the child. Only in this way can the child get a clear image of the fundus and promote the development of the fundus, so as to avoid amblyopia., What is high myopia?, Generally, myopia degree exceeding 600 degrees is regarded as high myopia;, Why does high myopia lead to blindness?, Generally speaking, for every 300 degree increase in myopia, the anterior posterior diameter of the eyeball increases by about 1 mm. Therefore, the higher the degree of myopia, the greater the risk of retinal detachment. According to statistics, about 70% of patients with retinal detachment are myopia, of which 30% ~ 40% are high myopia. High myopia is one of the main causes of blindness in the world., Is there a great possibility of high myopia and blindness?, Neither. Here we need to distinguish between ordinary high myopia and pathological myopia., Ordinary high myopia means that although your degree of myopia exceeds 600 degrees, your degree has basically stabilized and will not continue to deepen every year. Your corrected vision can also reach 1.0, and there is no obvious difference between you and normal people from the fundus of your eyes., △ the fundus of common high myopia is normal. What is

high myopia?

and

generally regard myopia of more than 600 degrees as high myopia;

why does high myopia lead to blindness?

generally speaking, the anterior posterior diameter of the eyeball increases by about 1 mm for every 300 degrees of myopia. Therefore, the higher the degree of myopia, the greater the risk of retinal detachment. According to statistics, about 70% of patients with retinal detachment are myopia, of which 30% ~ 40% are high myopia. High myopia is one of the main causes of blindness in the world.

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are high myopia and blindness more likely? Neither

nor

. Here we want to distinguish between ordinary high myopia and pathological myopia.

ordinary high myopia means that although your myopia degree exceeds 600 degrees, your degree has basically stabilized and will not continue to deepen every year. The corrected vision can also reach 1.0, and there is no obvious difference from normal people from the perspective of fundus.

△ normal fundus of common high myopia

pathological myopia refers to that after the age of 25, the degree of myopia is still developing, and the eyeball will be longer and longer. Therefore, from the fundus, the retina will become thinner, other diseases may occur, the corrected vision will continue to decline, and finally blindness may occur.

△ compare the fundus

and

of pathological myopia, we can see the difference between the two. The fundus retina and choroid of patients with pathological myopia are significantly thinner, the atrophy arc around the optic disc is obvious, there are lesions in the macular area, and the blood vessels become very thin.

parents are highly myopic. Must their children be highly myopic?

there are more and more people with myopia for various reasons. Many people have a question: is myopia hereditary? Ordinary myopia will not, but high myopia can be inherited.

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■ the incidence of children with two high myopia is more than 90%.

■ if high myopia is combined with myopia gene carriers, half of their children may be high myopia.

■ if high myopia is combined with normal people or low and medium myopia, the possibility of high myopia in their children is 10%.

how do teenagers prevent high myopia?

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according to the 2014 national survey on students’ physical health released by the Ministry of education, the poor vision rates of primary school students aged 7-12, junior middle school students aged 13-15, senior high school students aged 16-18 and college students aged 19-22 were 45.71%, 74.36%, 83.28% and 86.36% respectively.

and

are still in the key stage of eye development for adolescents. The medical community has clear data comparison, which proves that outdoor sports are effective in controlling the deepening of myopia.

and

if it is confirmed that it is high myopia, although it is a preschool child, it is also necessary to match glasses for the child. Only in this way can the child get a clear image of the fundus and promote the development of the fundus, so as to avoid the occurrence of amblyopia. Children should be encouraged to have more outdoor activities, see more trees, flowers and other green plants, go out of the buildings and look into the distance in a wide field of vision. And we should follow up regularly to control the progress of myopia in a scientific and effective way.

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suffer from high myopia. Can’t they really exercise violently?

high myopia is not suitable for sports. High myopia is far from wearing glasses with a higher degree than others. In fact, their eyes are already very fragile. Their eyeball axis is long and the eyeball wall is thin, and the retina becomes fragile. Even the retina itself may be damaged. At this time, it is easy to be injured if there is an external force. Therefore, people with high myopia had better not take strenuous exercise, mainly to prevent retinal detachment.

playing basketball, high jump, playing football, running, diving, bungee jumping, disco jumping, badminton, boxing and other violent sports are not suitable for people with high myopia. Divers, footballers and boxers are high-risk groups of retinal detachment.

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ophthalmologists remind you that people with high myopia should have their fundus, vision and optometry checked regularly every six months. To see if the fundus is clean and beautiful is very important for patients with high myopia, because perhaps retinopathy is happening unconsciously. Why should

and

pay attention to high myopia?

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experts point out that both diabetic retinopathy and age-related macular degeneration can now be treated. However, for fundus lesions with high myopia, macroscopically speaking, they can only “treat head pain and foot pain”. For example, retinal reattachment is performed for retinal detachment, retinal hemorrhage, and then anti VEGF treatment. In any case, incidence rate of high myopia is investigated by

and

. However, there is one way to calculate it. We Chinese population base is big, and what takes 1 billion 300 million to ride is huge. At present, it is estimated that there are 30 million patients with high myopia in China.

this is not simply 30 million, but will consume a lot of resources. At the same time, high myopia can lead to retinopathy and blindness, which has brought a heavy burden to many families. Therefore, we should attach great importance to high myopia – the key is to put the prevention and treatment at the forefront!