The Bridge School

Cortical Visual Impairment

Creating a Path for Systematic Investigation of Children With Cortical Visual Impairment Who Use Augmentative and Alternative Communication

There are significant challenges to face when serving children with Cortical Visual Impairment (CVI)  who use augmentative and alternative communication (AAC). One of the challenges is to find evidence-based research and intervention to guide practice. Boster, et. al., conducted a review designed to explore the available evidence on the topic and found that out of over 500 articles, only 10 discussed AAC interventions that included children with CVI. Authors noted that none of the studies addressed how vision might have impacted the design of AAC systems and/or the nature of AAC interventions. Their findings are published in the June issue of American Journal of Speech and Language Pathology and can be downloaded from