The term “deaf-blindness” may seem as if a person cannot hear or see at all. The term actually describes a person who has some degree of loss in both vision and hearing. The amount of loss in either vision or hearing will vary from person to person.
Our nation’s special education law, the IDEA, defines “deaf-blindness” as:
“…concomitant [simultaneous] hearing and visual impairments, the combination of which causes such severe communication and other developmental and educational needs that they cannot be accommodated in special education programs solely for children with deafness or children with blindness. [§300.8(c)(2)]”
The National Consortium on Deaf-Blindness observes that the “key feature of deaf-blindness is that the combination of losses limits access to auditory and visual information.”  This can severely limit an individual’s natural opportunities to learn and communicate with others.
This information is from the National Dissemination Center for Children with Disabilities (NICHCY).
It’s very helpful to read more about deafblindness. Following are links to additional information:
NICHCY Deafblindness Resources
The National Dissemination Center for Children with Disabilities (NICHCY) offers brief, but detailed fact sheets on Deafblindness. Each fact sheet defines the disability, describes its characteristics, offers tips for parents and teachers, and connects you with related information and organizations with special expertise.
A – Z to Deafblindness
This website includes information on resources in the community, upcoming events, links to other sites, mailing lists, newsletters and much more!
Deafblind International (DbI)
Founded over 30 years ago, Deafblind International (DbI) is the world association promoting services for deafblind people. DbI brings together professionals, researchers, families, deafblind people and administrators to raise awareness of deafblindness. Central to our work is to support the development of services to enable a good quality of life for deafblind children and adults of all ages. Membership of DbI is open to organizations, institutions, networks, and individuals.