Amblyopia is a condition in which the best corrected visual acuity in one or both eyes is lower than the age-appropriate visual acuity in the absence of an obvious organic pathology. Unlike myopia-farsightedness, it cannot be corrected to normal visual acuity with nearsightedness, farsightedness, or astigmatism, and cannot be explained by organic pathology. The principles of amblyopia treatment are: elimination of inhibition, improvement of visual acuity, and correction of eye position in order to restore visual function in both eyes. The details are as follows: masking therapy, which involves covering the dominant eye and forcing the amblyopic eye to use it, is the most common method used to treat amblyopia. It is supplemented by other methods depending on the situation, for example, if it is refractive parallax (large difference in refractive error in both eyes) and refractive error amblyopia, first wear appropriate corrective glasses; for moderate or mild monocular amblyopia and children with poor compliance to masking therapy, use 1% atropine to spot the dominant eye or use highly hyperopic lenses to blur the vision of the dominant eye. In patients with strabismic amblyopia due to non-modulating strabismus, strabismus is treated surgically. Amblyopia is usually asymptomatic and is most often detected during a monocular vision check. Amblyopia is an eye disease that seriously harms the visual function of children, and some amblyopia can be treated to restore normalcy. The earlier the detection, the more timely the treatment, the better the prognosis. Because of the effectiveness of a single method, two or three methods are often used for comprehensive treatment.