Unformatted text preview: o Primary Disability – the major condition that causes a child to differ in learning and/or behaviour o Secondary Disabilities – other conditions that are present-This view may overlook the cumulative nature of the conditions-Individuals are considered to be deaf-blind if they have a substantial loss of both sight and hearing such that neither is a reliable access to information. The combination of these sensory losses results in significant difficulties in acquiring educational, vocational, avocational and social skills. Prevalence-Low incidence Etiology-Syndromes Causing Deaf-Blindness: o Congenital Causes: Congenital Rubella Syndrome (CRS) CHARGE o Acquired Causes: Accident, Illness, Aging o Genetic Conditions: Usher’s Syndrome: a condition of familial nerve deafness associated with pigment degeneration of the retina; most common etiology of deaf-blindness; child is born deaf and gradually loses sight due to retinitis pigmentosa Down’s Syndrome...
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- Spring '11
- Down syndrome, Retinitis pigmentosa, Deaf-Blind/Dual Sensory Impairment, sensory losses