Why is myopia prevention and control so difficult?

Abstract: because the eyes look at the near side for a long time, it causes regulation, ciliary muscle contraction and tension, so that the choroid has a pulling and tension effect, the blood flow decreases, the blood volume is insufficient, and the scleral nutrition begins to decline. Under the effect of long-term malnutrition, the sclera becomes thinner and the hardness decreases, and after the sclera softens, the ocular axis grows abnormally.

many parents are eager to consult: doctor, my child’s myopia is still developing. What should I do? In their eyes, they seem to have avoided all the factors that they know can lead to vision deterioration, but they still can’t control vision deterioration. What unknown factors can damage our vision again?

I. regulating spasticity factors

because the eyes look near for a long time, the ciliary muscle tension of the eyes increases and develops excessively, which will slowly thicken the eye lens. When the lens thickens, the crystal diopter increases, causing regulatory myopia. There is no timely relaxation of crystal regulation. After long-term tension of the ciliary muscle, The muscles begin to harden and set (adjust the crystal locking state), and finally make the ocular axis grow abnormally.

2. The factors of high ocular pressure

Because the eyes look near for a long time, the adjustment of the eyes is excessive, the ciliary muscles are tense and move forward, the anterior chamber becomes shallow and narrow, resulting in an increase in intraocular pressure, which is equivalent to that of people who look near for a long time. When they look near for a long time, the intraocular pressure will rise for a long time, which will lead to congestion in the veins, softening the sclera, and abnormal growth of the ocular axis in the long run.

III. ocular muscle factors

due to the long-term view of the near side of the eye, under the regulation of the eye and under the relationship of triple movement, the excessive collection caused by excessive eye regulation. When the ocular muscles gather in the middle, the internal rectus muscle exerts force to make the eyes converge, and the external rectus muscle should be relaxed. However, due to excessive collection, the external rectus muscle still oppresses the eyes. Due to the need to reduce excessive regulation, The superior and inferior oblique muscles and the optic nerve pull the posterior membrane, which will lead to abnormal growth of the ocular axis under long-term action.

IV. crystal pressure factors

due to the long-term viewing of the near side of the eye, cause adjustment, ciliary muscle contraction and tension, so that the crystal thickens for a long time, compresses the vitreous body backward, and then compresses the retina and scleral sieve plate. Under the long-term compression, abnormal growth of the ocular axis occurs.

v. scleral nutritional factors

due to the long-term view of the near side of the eye, cause regulation, ciliary muscle contraction and tension, so that the choroid has a pulling and tension effect, the blood flow decreases, the blood volume is insufficient, and the scleral nutrition begins to decline. Under the effect of long-term malnutrition, the sclera becomes thinner and the hardness decreases, and the abnormal growth of the ocular axis occurs after the sclera softens.

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VI. hormone factors

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hormones will cause excessive growth of organs. The eyeball is also a part of human organs. When these hormones reach a certain value through long-term consumption, they will cause abnormal growth of body organs.

VII. The macular area is lack of nutritional factors. About 85% of the composition of

macular area is lutein. The protective function of macular area is weakened due to insufficient lutein, resulting in excessive growth of ocular axis.

VIII. Improper use of glasses factors eyes with high degree of

do not wear glasses, so that there is no clear pattern on the retina, and the eyeball continues to grow in order to seek a clear pattern. The eyes with low degree wear glasses too early, so that the eye muscles are over adjusted again when looking close, resulting in the continuous growth of degree.

IX. genetic factors

in fact, the heritability of myopia is very high. One of the parents is highly myopic, and the hyperopia reserve will be less than 300 degrees at birth.

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the factors of vision deterioration are far more than these nine factors, but these nine factors are often ignored. We should not avoid them because there are too many factors. The more factors, the more we should find ways to protect our vision. Because most parents are not professional, we must go to professional visual protection institutions in time.