Abstract: firstly, astigmatism can be divided into light, medium and high. About 80% of them are mild astigmatism, about 15% are moderate astigmatism and about 5% are high astigmatism. If astigmatism is mild and asymptomatic, it does not need to be corrected, but if there are symptoms such as visual fatigue, squinting and torticollis, it should be corrected accurately. Medium and high astigmatism usually must be corrected.
it’s more difficult for today’s children not to be short-sighted than to get 100 points in the exam. The burden of schoolwork is too heavy, students spend more time reading and writing, and the close eye environment such as playing computer and watching TV is increasing. Coupled with the popularity of mobile electronic displays such as mobile phones, the younger trend of juvenile myopia is becoming more and more obvious. Although parents have strong willingness to prevent and control, due to the limitations of professional knowledge, the following ten common misunderstandings have accelerated the development of children’s myopia to a certain extent.
children under 3 years old do not need to check their eyesight.
high myopia. In addition to the acquired causes, many will have congenital eye diseases and abnormalities. If your baby is less than 3 years old, but has the following conditions, please see a doctor as soon as possible.
found that the black pupil area of children showed white and yellowish white reflection;
children had obvious photophobia and tears;
children can’t look at objects in front of them or follow lights to turn their eyes;
when covering one eye, the child has no response, but when covering the other eye, it immediately causes the child to be agitated and cry; I like to look at things with my head tilted and so on.
even if your baby seems to have normal eyesight, you should bring your baby to professional ophthalmology for simple general screening in about half a year. Because there may be congenital eye diseases or abnormalities (such as retinopathy of prematurity, retinal tumor, congenital cataract, congenital glaucoma, etc.), it is difficult for parents to observe clues, but ophthalmologists can find and deal with these eye diseases in time to avoid permanent visual damage.
astigmatism doesn’t matter. There’s no need to correct
parents take their children to glasses stores. They often hear that astigmatism doesn’t matter and doesn’t need to be corrected. In fact, this should be treated differently.
astigmatism can be divided into light, medium and high. About 80% of them are mild astigmatism, about 15% are moderate astigmatism and about 5% are high astigmatism. If astigmatism is mild and asymptomatic, it does not need to be corrected, but if there are symptoms such as visual fatigue, squinting and torticollis, it should be corrected accurately. Medium and high astigmatism usually must be corrected.
glasses will increase the degree if they are worn. If they can’t be worn, they won’t be
many parents are unwilling to match glasses for their children’s myopia because they are worried that their children will not be able to take them off once they are worn.
because the occurrence and development of myopia are caused by genetic factors and a large number of acquired environmental factors, the myopia of teenagers and children will still show a deepening trend after wearing glasses, which is not the fault of wearing glasses.
do not need to be replaced regularly if they can see clearly with glasses. The refractive state of human eyes will change dynamically with different age states. Therefore, they should be checked regularly. For example, teenagers can be checked for half a year. In addition, the lens will affect the visual quality due to aging and surface coating wear. The mirror frame will also be deformed, resulting in correction deviation. Therefore, we should pay attention to regular optometry and glasses.
myopia no matter it, it’s better to do a myopia laser when you grow up.
juvenile myopia is irreversible. If you don’t treat it, it will lead to high myopia and bring many eye complications. Even if you do myopia laser correction in adulthood, it will be much more difficult. Therefore, myopia should be actively treated and develop good eye habits. Otherwise, it will be inherited and make the next generation more myopic.
glasses the more expensive, the more fashionable, the better
a good pair of glasses lies not in the high price, but in whether it is suitable for you. For some exaggerated and fashionable large frame glasses, due to the heavy frame, large and heavy lens diameter, incorrect optical center shift of the lens, unstable wearing position, etc., it is easy to lead to inaccurate optical correction, prism effect and increase of aberration, resulting in visual fatigue and decline of visual quality. In particular, some young people with small face shape, small pupil distance and deep degree are not recommended to choose large frame optical glasses.
wearing glasses will cause eye “protrusion”
many people think that wearing glasses for myopia will cause eye deformation and protrusion, resulting in some people with high myopia who are very taboo to wear glasses with accurate height. In fact, it is myopia that deepens and the axis of the eye grows, which leads to the deformation and prominence of some people’s eyes, rather than wearing glasses. The growth of myopia is due to the prominent deformation of the eyes, while inappropriate glasses with significantly low degrees are just more prone to visual fatigue, which may promote the deepening of myopia.
children are too young. Don’t wear myopia glasses.
often have children who squint at people and objects. Many parents will say, “don’t let your children wear glasses when they are so young. They can’t take them off.” This understanding is extremely wrong and very harmful!
children are in a critical period of visual development to ensure complete and sound vision, The most important thing is that both eyes can see a clear retina at the same time (fundus) image. If myopia is not corrected in time, the long-term blurred image of retina will, on the one hand, induce further lengthening of eye axis, increase myopia, and even lead to weak and strabismus; on the other hand, it will also affect children’s psychological development, such as reduced interest in New things outside the world, narrowed scope of life, and seriously affect intellectual development.
in addition to genetic factors, the main reasons for the increase of myopia in adolescence are excessive eye burden and unscientific eye habits. During the period of rapid height development, the degree of myopia often increases rapidly. Therefore, on the basis of scientific and reasonable correction, whether the myopia degree increases has nothing to do with whether to replace glasses.
suggest that teenagers should have an optical examination every 3 ~ 6 months and regularly monitor the changes of vision. If the corrected visual acuity is too low, the optometry shall be conducted again, and the corrective lenses with reasonable diopter shall be replaced.
myopia glasses can not be matched too clearly. The complete correction of
myopia is to correct myopia as emmetropia to restore adjustment and setThe inherent normal relationship between the two. Wear low correction glasses for a long time, and the eyes do not need to adjust or use less adjustment when looking at near objects. In order to maintain single vision of both eyes, the visual axes of both eyes must be assembled, so that the relationship between adjustment and assembly will be disordered. If the adjustment is close to the collection, it will produce excessive adjustment, resulting in ciliary spasm, that is, artificially increasing the degree of myopia;
on the other hand, the collection is close to regulation, that is, it develops to low collection, resulting in the imbalance of extraocular muscle strength. When the imbalance of muscle strength cannot be maintained, the visual function of both eyes will be destroyed. Only one eye can see things, and the other eye tends to the outside, becoming temporary alternating exotropia. The optometrist will give a reasonable degree of glasses according to the child’s visual function. Parents should not intervene blindly.