Q & A on children’s myopia?

Abstract: the eyeball of newborns is small and the anterior posterior diameter is short. Under normal circumstances, the refractive state is mild hyperopia. With the increase of age, the degree of hyperopia gradually decreases. That is to say, if children aged 3-5 have mild hyperopia without other diseases, it is normal and caused by physiological development, which is called physiological hyperopia. How old should

children begin visual examination?

visual acuity assessment can be carried out after birth, but the common e-letter visual acuity chart usually needs to be carried out when the child has sufficient cognitive and expression ability. Before that, infant visual acuity assessment methods such as graphic visual acuity chart, selective viewing and visual evoked potential can be used. Usually you can check the e-letter visual acuity chart at the age of 3. If there are the following cases, Ophthalmic examination should be done as soon as possible after birth: (1) premature infants (2) family history of strabismus, amblyopia and high refractive error (3) any abnormalities in eye appearance or visual performance.

what do children need to pay attention to when watching TV?

1. Pay attention that the distance between eyes and TV should not be too close, usually more than 3 meters;

2. Do not watch TV for a long time. Generally, your eyes should rest for 10 minutes every half an hour; Not more than 3 hours a day;

3. Pay attention to the posture when watching TV. Don’t lie on the bed or sofa or tilt your head to watch TV;

4. Turn on the light to watch TV, and don’t watch TV in complete darkness;

5. Avoid jumping, blurring and shaking pictures in TV pictures;

6. If the child has ametropia, he should be instructed to wear glasses when watching TV;

if the child likes to tilt his head and squint when watching TV, parents should be alert that the child may have refractive problems and should come to the hospital for examination in time. How do children with hyperopia and strabismus wear glasses?

hyperopia is divided into mild hyperopia (0.00d ~ + 3.00d), moderate hyperopia (+ 3.25d ~ + 5.00d) Hyperopia (+ 5.25d or above) three types: mild hyperopia. If the vision is normal and there are no symptoms of visual fatigue, you can not wear glasses. Medium and high hyperopia are usually accompanied by accommodative esotropia. For such children, all refractive correction should be given after ciliary muscle paralysis, that is, 1D physiological adjustment should be reserved. The treatment is the degree of audition minus 1D after mydriasis; for a few hyperopia children with exotropia, low degree should be given Correction, that is, check the eye position on the basis of obtaining the best corrected vision, and try to minimize the degree of strabismus when wearing glasses, so as to obtain better vision and better eye position at the same time. It is suggested that children with hyperopia should go to a specialized ophthalmic hospital with glasses, and wear glasses after comprehensive analysis under the guidance of pediatric ophthalmologists.

is hyperopia normal in children aged 3 ~ 5?

and

newborns have small eyeballs and short anterior posterior diameter. Under normal circumstances, the refractive state is mild hyperopia. With the increase of age, the degree of hyperopia gradually decreases. That is to say, if children aged 3-5 have mild hyperopia without other diseases, it is normal and caused by physiological development, which is called physiological hyperopia.

and

do children have myopia when they see things very close?

children see things very close. It is not necessarily myopia. It may be hyperopia or hyperopia astigmatism. The main manifestations are: I can’t see far and near clearly. I like to move forward when watching TV. I suggest going to an ophthalmic hospital.

what is ametropia?

we know that the light entering the eye from an infinite distance is parallel light. When the parallel light is refracted by the refractive system of the eye, it just focuses on the retina. This situation is called emmetropia, that is, normal refraction.

and

when the parallel light is refracted through the refractive system of the eye, it is not focused on the retina. It may be in front of or behind the retina. At this time, it is not in an emmetropia state, which is called ametropia. General refractive errors are divided into three categories: myopia, hyperopia and astigmatism.