What is the purpose of my child wearing glasses?
What do I need to wear glasses?
Refractive errors
The refractive state of both eyes is unequal, called refractive error. Mild refractive errors are more common in the clinic, and it is generally believed that the diopter difference is 0.25D per diopter. The difference in image size is 0.5%, and the difference in human image tolerance is generally considered to be within 5%.
If the difference is too large, the visual acuity of both eyes is not equal, and the image of the two eyes is difficult to fuse, so that the monosopic function of both eyes cannot be formed.
Especially in infants and young children, they often actively inhibit the objects of the eyes with large diopter, and the long-term inhibition of the posterior vision function is not developed, resulting in the formation of one-eye strabismus and refractive amblyopia.
Refractive error
When the eye is adjusted to be stationary, the external parallel light passes through the refractive system of the eye, but cannot be focused in the central fovea of the retina macula, so it cannot produce clear imaging, which is called refractive error.
Refractive errors include myopia, hyperopia and astigmatism, refractive error is a common disease, the main cause of which is genetic, environmental, related diseases and so on.
Effects of not wearing glasses
amblyopia
Refractive errors or refractive errors Without glasses for long periods of time can lead to amblyopia, especially in patients with high refractive errors and large refractive errors in both eyes.
strabismus
Patients are prone to strabismus due to refractive errors or uneven refractive errors, especially in patients with refractive errors, which are usually accompanied by amblyopia.
Purpose of wearing glasses
1. Correct vision
After wearing the mirror, the external object is imaged on the retina through the lens to promote visual development.
2. Correct amblyopia as soon as possible
Refractive jestration amblyopia and refractive error amblyopia should be treated as soon as possible, and glasses are the basis for correcting amblyopia.
3. Prevention and correction of strabismus
Early wearing of glasses can not only correct vision, but also plays an important role in the prevention and correction of strabismus.
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