I know puting eye patch on a stronger eye to make the weaker one work more. However,eye patching is not enough. While eye patching may enhance visual acuity in the amblyopic eye, these techniques do not enhance the patient's ability to use the two eyes together.
As to the vision therapy, it provides additional treatments for all aspects of vision impacted by amblyopia. With vision therapy, for example, the patient engages in visual activities which require the simultaneous use of both the lazy eye and unaffected eye at all distances (near, middle and far range).
Moreover, the lazy eye surgery does not existed and the lazy eye can not be treated with surgery. This comes from the fact that strabismus (wandering of one or both eyes) is often confused with the eyes being “lazy.” Lazy eyes with amblyopia just do not see well, it DOES NOT mean they wander or drift.