KAR 91-40-1 (dd) "Hearing impairment" means an impairment in hearing, whether permanent or fluctuating, that adversely affects a child’s educational performance but that does not constitute deafness as defined in this regulation. (p) “Deafness” means a hearing impairment that is so severe that it impairs a child’s ability to process linguistic information through hearing, with or without amplification, and adversely affects the child’s educational performance.
(uuu) “Visual impairment” means an impairment in vision that, even with corrections, adversely affects a child’s educational performance. The term includes both partial sight and blindness. (g) “Blindness” means a visual impairment that requires dependence on tactile and auditory media for learning
(o) "Deaf-blindness" means the combination of hearing and visual impairments that causes such severe communication and other developmental and educational needs that they cannot be accommodated in special education programs solely for the hearing impaired or the visually impaired.