Vision Therapy

What is Cortical Visual Impairment?

  • CVI is defined as impaired vision that is due to bilateral dysfunction of the optic radiations or visual cortex or both. It can coexist with ocular and ocular motor disorders and can be the result of perinatal brain dysfunction or be caused by trauma. Approximately 30%-40% of children with visual impairments have CVI.

  • Most common conditions associated with a diagnosis of CVI are asphyxia, perinatal hypoxic-ischemic encephalopathy, intraventricular hemorrhage, periventricular leukomalacia, cerebral vascular accident, central nervous system infection, structural abnormalities, and trauma.


  • The assessment identifies the cause of CVI can generally be thought of as conditions that affect the visual pathways or visual processing centers of the brain. 

  • Vision therapy is a non-surgical and customized program of visual activities designed to correct certain vision problems and/or improve visual skills.

  • Vision therapy is like physical therapy for the visual system, including the eyes and the parts of the brain that control vision.

  • Overall, the goal of vision therapy is to treat vision problems that cannot be treated successfully with eyeglasses, contact lenses and/or surgery alone, and help people achieve clear comfortable binocular vision.








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