Abstract: calcium is the “protector” of eye tissue. The lack of calcium in the body will not only reduce the elasticity of the retina, increase the pressure in the crystalline body and lengthen the anterior and posterior diameter of the eyeball, but also cause degenerative lesions of the corneal ciliary muscle, so as to weaken the elasticity of the eyeball wall and promote myopia.
do you know that children love sweets, which will not only lead to anorexia, childhood obesity and worm teeth, but also have a great impact on vision. Experts point out that sweets are very likely to induce myopia in children.
sweets clearly affect the relevant parts of the mouth, intestines and stomach. How can they be related to vision? In fact, this is due to the impact of sugar in sweets on the human body. Therefore, experts suggest that parents and friends had better control their children’s snacks.
like sweets. Children are prone to myopia. Experts of
point out that when sugar in sweets is metabolized in the human body, it needs a lot of vitamin B1 to help and reduce the content of calcium in the body. Vitamin B1 has a protective effect on the optic nerve, and its content will affect the state of the optic nerve.
and calcium is the “protector” of eye tissue. The lack of calcium in the body will not only reduce the elasticity of the retina, increase the pressure in the crystalline body and lengthen the anterior and posterior diameter of the eyeball, but also cause degenerative lesions in the corneal ciliary muscle, so as to weaken the elasticity of the eyeball wall and promote myopia. How can
judge that they have become myopia?
1. Visual fatigue is common especially in low-grade patients, but it is not as obvious as hyperopia. It is caused by the disharmony between regulation and collection. For high myopia, because the fixation target is too close to the eye, the collective effect can not cooperate with it, so monocular fixation is often used, but it will not cause visual fatigue.
2. The most prominent symptom of visual myopia is the decrease of far vision, but the near vision can be normal. Although the higher the degree of myopia, the worse the far vision, there is no strict proportion. Generally speaking, for myopia above 3.00d, the far vision will not exceed 0.1; 2.00d is between 0.2 and 0.3; 1.00d can reach 0.5, sometimes better, see.
3. High myopia of eyeball mostly belongs to axial myopia. The anterior and posterior axis of eyeball is elongated, and its elongation is almost limited to the posterior pole. Therefore, it often shows that the eyeball is prominent, the anterior chamber is deep, the pupil is large and the reflex is slow. Due to the absence of regulatory stimulation, the ciliary muscle, especially the annular part, becomes atrophic. In very high myopia, the lens can not support the iris at all, resulting in mild iris tremor.
4. The eye position does not need to be adjusted when the myopic eye is close, so the collective function is relatively weakened. When the muscle strength balance cannot be maintained, the binocular visual function will be destroyed. Only one eye depends on the visual object, and the other eye tends to the outside, becoming a temporary alternating strabismus. If the visual function of strabismus is very poor and the strabismus occurs early, the strabismus can lose the fixation ability and become monocular exotropia.
eye exercises can prevent myopia
in view of the rising trend of juvenile myopia in recent years, relevant experts remind that the treatment of myopia focuses on prevention. The most important way to prevent myopia is to wear appropriate glasses and do eye exercises well. Don’t superstitious about the various myopia prevention instruments on the market.