This invention employs at least two precision-controlled Risley prisms to create a vision training device that helps patients afflicted with strabismus to overcome muscle imbalances while also helping to effect therapeutic neuro-plasticity to rehabilitate the neurological control system of the eyes including the brain and the extraocular muscles that control eye movement. Various treatment options exist, but the current invention offers additional benefits including letting the patient multitask during therapy, and giving the practitioner a wider selection of training regimens.