Are the four rumors of myopia true? Can myopia be inherited?

Abstract: in medicine, we call myopia above 600 degrees as high myopia. Clinical practice has proved that when both parents are myopic, the probability of children suffering from high myopia is greater, but this does not mean that children born with myopia will be myopic.

eye health directly affects the quality of daily life, especially for myopia. However, the public who lack professional ophthalmology knowledge do not know how to judge in the face of all kinds of rumors on the Internet, and it is easy to go into misunderstanding.

1. Will myopia grow old when it grows old?

presbyopia is a kind of senile disease. Myopia will also have presbyopia, but if there was myopia before, the degree of presbyopia and myopia correction lenses is positive and negative, which can be neutralized, and the symptoms of presbyopia will be offset to an undetectable degree, which gives people the misunderstanding that myopia will not presbyopia.

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also mentioned that myopia can’t see far away, presbyopia can’t see near, so will your eyes return to normal for a while, and there’s no problem seeing far and near? Unfortunately, the answer to this question is No. the counteraction effect of myopia and presbyopia can only make you see more clearly near. When you look far away, you still have to wear myopia glasses.

2. Will squinting increase the degree of myopia?

some people are used to squinting when they can’t see clearly, which will indeed cause further decline in their eyesight. However, to be precise, this habit increases your astigmatism. We can imagine the state of the eyes when squinting. The upper and lower eyelids are in contact with the eyeballs, the exposed part of the eyes narrows, the cornea is compressed, and astigmatism increases under this pressure. The symptoms of astigmatism are generally ghosting, unclear up and down, affecting directionality and declining visual quality.

3. Can high myopia be inherited?

: in medicine, we call myopia above 600 degrees high myopia. Clinical practice has proved that when both parents are myopic, the probability of children suffering from high myopia is greater, but this does not mean that children born with myopia will be myopic. We cannot rule out that some children’s myopia is affected by their parents’ habits. For example, if parents love reading, children may like reading, and the possibility of myopia will increase. But medically speaking, compared with those children whose parents have normal eyes, the children of high myopia do have an increased risk factor of high myopia.

4. It is best to wear glasses with lower correction degree than normal?

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need to be determined according to age, refractive status and whether there are other visual problems, which can not be generalized. If it is for adults and there are no other eye diseases, it should be seen according to their eye needs. In statistical epidemiology, there is a concept of life vision, which believes that as long as the vision is not less than 0.5, there is no problem with normal life. However, some people are really used to living a normal life only when they are very clear. For example, they need to achieve vision above 1.0 to feel clear. If these people wear glasses lower than the correction degree, they will squint when looking at things, which may lead to visual fatigue; Some people are used to vague days and feel that it does not affect their life, so there is no problem wearing glasses lower than corrected vision.