Abstract: high refractive error: such as high myopia, hyperopia and astigmatism, because the light can not be clearly focused on the retina after entering the eyeball, resulting in insufficient visual stimulation, resulting in amblyopia.
the difference between myopia and amblyopia
1. Essential difference
myopia is an eye disease in which the eye axis becomes longer and can’t see clearly due to excessive tension of the ciliary muscle of the eye regulating muscle or genetic reasons, but the corrected vision returns to normal after wearing glasses. Amblyopia is a kind of visual function retardation and disorder, which is often accompanied by strabismus, high refractive error, and the visual acuity can not be corrected to normal.
2. Etiological difference
the causes of children’s strabismus amblyopia are:
1. Strabismus amblyopia is diplopia and confusion caused by strabismus, which makes patients feel uncomfortable.
2. High refractive error: such as high myopia, hyperopia and astigmatism, because the light cannot be clearly focused on the retina after entering the eyeball, resulting in insufficient visual stimulation, resulting in amblyopia.
3. Unequal vision: the degree difference between the two eyes is more than two Baidu, and the degree difference between the two eyes is large. Only good eyes can see, and the other eye forms amblyopia.
and myopia is caused by many factors.
1, genetic factors: the study found that the incidence rate of the parents in the high myopia families is higher, and the myopia has a certain genetic tendency.
2. Environmental factors: the occurrence and development of myopia are closely related to close eye use.
how do parents find amblyopia babies
as soon as possible? 1. Visual acuity chart examination method
ordinary children, especially kindergarten children, will recognize the visual acuity chart after simple visual acuity teaching at the age of 3. Parents can buy a standard visual acuity chart and hang it on the wall with sufficient light at home, Let the child recognize at a distance of 5 meters. It’s best not to be less than 4 years old.
love reminder: during the examination, you must cover your eyes separately. Don’t let your child look at both eyes at the same time to prevent monocular amblyopia from being missed. After repeated and careful examination for several times, if you find that one eye vision is less than 0.8, you need to take your child to the hospital for further diagnosis.
2. Find abnormal behavior
parents can also use some simple methods to find the signs of their children suffering from amblyopia:
put more eye-catching items in front of their children and observe whether they can find them in time.
observe the child’s binocular and monocular gaze, and pay attention to whether he likes to get close when watching TV.
observe whether the child has abnormal head position when looking at things, such as whether he likes to look up and down.
observe whether children can look at objects stably. If the child’s eyes turn back and forth or tremble, there is the possibility of amblyopia.
children often fall down when walking and can’t get things. It may also be that amblyopia affects their sense of distance when they can’t grasp objects.
3. Covering test method
for children who are unwilling to cooperate with the visual examination, they can roughly understand the visual acuity of both eyes through the covering test. The specific method is:
deliberately cover one eye and let the child look at the object with one eye. If the child is quiet and covers the other eye, they tear and grasp the cover, It suggests that the vision of the uncovered eye is very poor and should be checked in the hospital as soon as possible.