Specific Etiologies

Teacher Support Program for Learners with DeafBlindness

Specific Etiology

Cortical Visual Impairment (CVI)

Cortical visual impairment (CVI) is a disorder caused by damaged parts of the brain that process vision. Most common in babies and young children but can continue into adulthood. 

A child with CVI has vision problems that are caused by their brain that can’t be explained by a problem with their eyes. CVI is a leading cause of vision loss among kids. In children, vision can get better over time, but it differs with everyone. 

Learn more about CVI


Educational Resources


CHARGE syndrome is the most complex condition that we know, and the unique combination of true multi- sensory impairment with multiple other anomalies. People with CHARGE syndrome have difficulties with vision and hearing and also with the senses that perceive balance, touch, temperature, pain, pressure, and smell, as well as problems with breathing and swallowing, eating and drinking, digestion, and temperature control. CHARGE syndrome is a disorder that affects many areas of the body. CHARGE is an abbreviation for several of the features common in the disorder: coloboma, heart defects, atresia choanae (also known as choanal atresia), growth retardation, genital abnormalities, and ear abnormalities.

Understanding CHARGE Syndrome Online Course

A Checklist of Educational Needs for Individuals with Charge Syndrome

The Charge Syndrome Foundation: https://www.chargesyndrome.org

Usher Syndrome


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