Myopia is because the eye regulates muscle ciliary muscle excessive tension or heredity causes the axis to see far is not clear, see a clear eye disease, correct vision after wearing a mirror can restore normal. Amblyopia is a kind of visual function development delay, disorder, often accompanied by strabismus, high refractive error. Mirror vision can not be corrected to the normal eye disease, the two diseases have essential differences. Amblyopia is much more harmful to children's visual function than myopia. For amblyopia, the symptoms can be relieved and treated by wearing corrective glasses, but the choice of the specific plan should also go to the hospital to consult an ophthalmologist. Because myopia is only distant vision decline, without other visual function damage, vision correction is not limited by the ridge; and amblyopia children not only low vision, can not correct, cannot have single vision function, no stereo, the future is not competent for driving, mapping and fine work, not only affect the work future, but also directly affect the quality of our population. Today I together to understand the characteristics of weak four kinds of amblyopia.
strabismic amblyopia
Monocular amblyopia formed by monocotropia
The object cannot fall on the corresponding point of the binocular retina at the same time, resulting in diplopia and confusion of vision
The brain visual center takes the initiative to suppress the strabismus eye in order to reduce the discomfort symptoms
Most of them were ocular strabismus, with alternating fixation strabismus and intermittent exotropia, and less strabismus amblyopia occurred
Studies have shown that esotropia has a higher incidence of amblyopia than exotropia
anisometropic amblyopia
When the refractive error is not corrected, the retinal imaging of the eyes with low refractive error is relatively clear, the eye imaging with high refractive error is blurred, and the visual stimulation of both eyes is unbalanced. The visual cortex of the brain will choose clearer images to inhibit the blurred image, thus leading to the formation of monocular amblyopia in the eyes with high refractive error
Binocular hyperopic refractive errors, spherical refraction difference + 1.50 DS, or column refraction difference + 1.00 DC, high refraction number is prone to form amblyopia
ametropic amblyopia
When the high refractive error of both eyes is not corrected, the macular fovea of both eyes is always unable to form clear objects, which affects the normal development of vision and is easy to form weakness
Remote refraction number + 5.00 DS and (or) astigmatism degree + 2.00DC can increase the risk of forming weakness
Myopic refractive error less leads to weakness
Generally, 3-6 months after wearing glasses, vision cannot be promoted to the corresponding normal age
form deprivation amblyopia
Due to refractive stromal turbidity (such as congenital cataract, corneal opacity, etc.), congenital ptosis, shielding the visual axis, inappropriate covering and other deprivation factors, the amblyopia caused by sufficient visual input is limited