1. What is amblyopia? A: Amblyopia is a condition in which there is no obvious organic pathology in the eye, or there are organic changes and refractive abnormalities, but the vision loss and constant correction or corrected visual acuity below 0.9 are incompatible with its pathology. 2. What is the classification and etiology of amblyopia? (1) Strabismic amblyopia: occurs in one eye, the child has strabismus or had strabismus, commonly in patients with constant strabismus in one eye with onset under four years of age, which is due to the active inhibition of the visual impulses of the strabismus by the cerebral cortex, long-term inhibition of the formation of amblyopia, visual inhibition and amblyopia is only the difference in the amount, generally for the strabismus injection can be released when the inhibition, while amblyopia is persistent vision loss. The earlier the age at which strabismus occurs, the faster the inhibition is produced and the deeper the degree of amblyopia. (2) Refractive parallax amblyopia: Because the two eyes do not see eye to eye, the size and clarity of the retinal imaging of the two eyes are different, and the macular imaging of one eye with higher refractive power is large and blurred, causing insufficient stimulation of the fusion reflex of the two eyes, which cannot form binocular monocularity, thus producing passive inhibition, and the refractive phase of the two eyes is more than 3.00D, and the higher refractive power often forms amblyopia and strabismus. To the passive and active inhibition at the same time. (3) Refractive amblyopia: It is mostly binocular and occurs in children or adults with high myopia and astigmatism who do not wear corrective lenses, mostly with myopia above 6.00D, hyperopia above 5.00D, and astigmatism ≥2.00D or both. The visual acuity of both eyes is equal or similar, and there is no dysfunction of binocular image fusion, so it does not cause functional macular suppression. (4) Formal deprivation amblyopia: In infancy, due to ptosis, corneal clouding, congenital cataract or due to eyelid surgery after covering for too long, so that light stimulation can not enter the eye, hindering or blocking the macula to receive the form of stimulation, thus producing amblyopia. 3.Do I need to wear glasses all the time? A: Wearing glasses is a common amblyopia treatment method. If your doctor prescribes glasses for your child, it means that your child has refractive error in his eyes and glasses need to be worn all the time. This is very important! 4. Do I need to cover my eyes for amblyopia? A: Covering is only for children who have a difference of more than two lines of corrected visual acuity in both eyes. By covering, the amblyopic eye can have more opportunities to be used. The frequency and period of masking should be adjusted according to the age of the child, please follow the doctor’s instructions. 5.Can amblyopia treatment reduce the number of glasses worn or even eliminate the need for glasses in the future? A: The purpose of amblyopia treatment is to improve the child’s visual nerve development, not to reduce the degree of farsightedness or astigmatism. The effect of the training is more in the gradual improvement of visual acuity with the same pair of glasses, rather than the gradient of wearing glasses slowly decreasing. 6.When the child’s vision reaches 0.8 or even 1.0 with glasses, can I stop the training? A: Even if the patient’s vision has reached 0.8 or even 1.0 through amblyopia treatment, it does not mean that the vision development has reached the best and will not recur in the future. If the primary condition is not completely removed, prematurely stopping training may lead to recurrence of amblyopia. It is generally important to insist on training for at least three months after the corrected visual acuity reaches the standard, and it is best to monitor the child’s fusion ability and stereo vision, and it is also important to review the child in the hospital every six months.