Non-invasive Brain Stimulation for Treating Symptomatic Convergence Insufficiency

Exclusion Criteria

• •Previously treated for convergence insufficiency with home- or office-based vergence/accommodative therapy
• •Amblyopia (\> 2-line difference in best-corrected visual acuity between the two eyes)
• •Constant strabismus
• •History of strabismus surgery
• •Convergence insufficiency secondary to acquired brain injury or neurological disorder
• •Manifest or latent nystagmus
• •Systemic disease known to affect accommodation, vergence, and ocular motility including multiple sclerosis, Graves disease, myasthenia gravis, Parkinson's disease, cerebral palsy, and diabetes
• •Developmental disability, attention deficit hyperactivity disorder (ADHD), learning disability or cognitive dysfunction that would interfere with treatment
• •Taking medications that can affect normal neurological function including antipsychotics, antiepileptics, and opioids
• •Presence of metal or electronic implants in or on the body, including pacemakers