InterventionIntervention for children who are deafblind must connect them to the world. It must provide access to clear and consistent visual and auditory information, support for the development and use of receptive and expressive communication, and support for social and emotional well being.

This connection to the world can be made through a person called an intervener. An intervener is defined as a person who works consistently one-to-one with a child who is deafblind and who has training and specialized skills in deafblindness.