Abstract: many people mistakenly believe that poor vision is not only myopia, but also other vision problems. As soon as I see a child’s poor eyesight, I think of whether there is myopia or astigmatism. Parents often encounter them in the clinic, thinking that a few tenths of eyesight must represent myopia., Myopia, a common ophthalmic disease in modern society, is very important to modern people., The development of visual acuity begins from the fetus in the mother. The fetus develops pupillary reflex at about 31 weeks, but the eyelids are still closed at this time. There is no blink reflex until a few days after birth. The newborn develops eye fixation at about three months old; At the age of six months, visual stereopsis gradually develops with the increasing coordination of the two eyes. The development of visual acuity, like the development of the nervous system, is step by step, step by step. Only when their own constitution and external stimuli cooperate with each other, can there be the so-called normal visual acuity., The development of visual acuity gradually develops with age. The visual acuity of newborns is only about 0.0, that of 1-3 years old is about 0.6, and that of 6 years old is close to that of normal adults, about 0.8 to 1.0. At this time, most children have completed the process of emmetropia, and only a few children show myopia or other refractive errors., Many people mistakenly believe that poor vision is not only myopia, but also other vision problems. When you see a child’s poor eyesight, you will think whether there is myopia or astigmatism. Parents often think that a few tenths of vision must represent myopia in the clinic. In fact, there are many reasons for poor eyesight, such as amblyopia and strabismus. Ametropia (including myopia, hyperopia and astigmatism) is only one of many reasons, and the two are not completely related., Of course, for teenagers, the main reason for poor vision is ametropia, but for some specific children, we should still pay attention to whether there are some non ametropia factors that cause poor vision. In other words, poor vision can not be solved completely by a pair of glasses.,
myopia is a common ophthalmic disease in modern society. Myopia attaches great importance to modern people. The development of
and
visual acuity has begun since the fetus developed in the mother. The fetus developed pupillary reflex at about 31 weeks, but the eyelids were still closed at this time. There was no blink reflex until a few days after birth. The newborn developed eye fixation at about three months old; At the age of six months, with the increasing coordination of the two eyes, the visual stereopsis gradually develops. The development of visual acuity is like the development of the nervous system, step by step, step by step. Only when their own constitution and external stimuli cooperate with each other can there be the so-called normal visual acuity. The development of vision of
and
gradually develops with age. The vision of newborns is only about 0.0, that of 1-3 years old is about 0.6, and that of 6 years old is close to that of normal adults, about 0.8 to 1.0. At this time, most children have completed the process of emmetropia, and only a small number of children are in the state of myopia or other refractive errors.
many people mistakenly believe that poor vision is not only myopia, but also other vision problems. When you see a child’s poor vision, you will think of whether there is myopia or astigmatism. Parents often think that a few tenths of vision must represent myopia in the clinic. In fact, there are many reasons for poor vision, such as amblyopia and strabismus. Ametropia (including myopia, hyperopia and astigmatism) is only one of many reasons, and the two are not completely related.
of course, for teenagers, the main reason for poor vision is ametropia, but for some specific children, we should still pay attention to whether there are some non ametropic factors that cause poor vision. In other words, poor vision can not be solved completely by a pair of glasses.