AmblyoPlay vision therapy is an innovative approach to treating amblyopia, strabismus, CI, and others. However, if in addition, we pair it with some other traditional approaches, the progress only improves! Brock String is a powerful vision therapy tool that addresses the same problems in an analog way. Together, AmblyoPlay and Brock String provide for best vision therapy outcomes. Premium option contains 12-Month AmblyoPlay Box and Brock String.