Definition of Deafblindness

National Deafblind Census, NTAC:  "The term, 'children with deafblindness,' means children and youth having auditory and visual impairments, the combination of which creates such severe communication and other developmental and learning needs that they cannot be appropriately educated without special education and related services, beyond those that would be provided solely for children with hearing impairments, visual impairments, or severe disabilities to address their educational needs due to these concurrent disabilities."  

Texas Education Agency, TEA, Chapter 89, Subchapter AA: 

(2) Deaf-blindness. A student with deaf-blindness is one who has been determined to meet the criteria for deaf-blindness as stated in 34 CFR, §300.7(c)(2). In meeting the criteria stated in 34 CFR, §300.7(c)(2), a student with deaf-blindness is one who, based on the evaluations specified in subsections (c)(3) and (c)(12) of this section:

(A) meets the eligibility criteria for auditory impairment specified in subsection (c)(3) of this section and visual impairment specified in subsection (c)(12) of this section;

(B) meets the eligibility criteria for a student with a visual impairment and has a suspected hearing loss that cannot be demonstrated conclusively, but a speech/language therapist, a certified speech and language therapist, or a licensed speech language pathologist indicates there is no speech at an age when speech would normally be expected;

(C) has documented hearing and visual losses that, if considered individually, may not meet the requirements for auditory impairment or visual impairment, but the combination of such losses adversely affects the student's educational performance; or

(D) has a documented medical diagnosis of a progressive medical condition that will result in concomitant hearing and visual losses that, without special education intervention, will adversely affect the student's educational performance.