Early detection, treatment, and training for refractive amblyopia can potentially restore normal vision, but the extent of recovery varies from person to person. Since the principles behind various amblyopia treatment methods differ and have their advantages, comprehensive therapy is superior to single therapy. For a child with amblyopia in one eye, the routine initially involves covering the healthy eye to give the amblyopic eye more focused exercise, combined with precise visual acuity training, stimulation from amblyopia treatment devices, and so forth. After months or years of treatment, the child's vision in the amblyopic eye will show significant and rapid improvement.