Binocular iPad Sub-Study

Inclusion Criteria: Age 4-14 years Female and male Amblyopia with amblyopic eye visual acuity 20/40-20/125, fellow eye visual acuity 20/16-20/25, and interocular difference in visual acuity of 3 lines or more. Anisometropic (with or without microtropia) or fully accommodative esotropia (no tropia present with glasses), or deprivation amblyopia Wearing glasses (if needed) for 8 weeks or no change in visual acuity with glasses wear for 4-6 weeks. Must be able to demonstrate understanding and ability to play the Dig Rush game app during the enrollment visit. Signed informed consent obtained Exclusion Criteria: Prematurity ≥8 weeks Coexisting ocular or systemic disease Developmental delay Poor ocular alignment (strabismus \>5 prism diopters)