Low Incidence Disabilities Visual Presentation

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Low Incidence Disabilities Visual Presentation

Charge Syndrome -This disability is caused by a gene mutation. It results in swallowing and breathing difficulties. It features a vision condition called Coloboma which is a condition where a child is born with an abnoramlly shaped pupil/abnormalities of the retina or optic nerve. This causes issues with visual acutity and extreme light sensitivity.

Reference:Hallahan, Daniel P, James M Kauffman and Paige C Pullen. Exceptional Learners: An Introduction to Special Education, 13th Edition. Boston, MA: Pearson, 2015, pp. 324-343.

Usher Syndrome - This disability is one of the most common hereditary conditions that causes Deaf-blindness. Results in hearing impairment and retinitis pigmentosa (RP). RP creates problems seeing in low light (night blindness). As it progresses, results in a narrowing of field of vision, called tunnel vision. Caused by a mutation in any one of 11 genes. Prevalence of Usher Syndrome is very low since both parents must be carriers of the affected gene. Modification-Early introduction of braille, Orientation/Mobility training.

Low Incidence Disabilities Visual PresentationbyBrian MitchellUniversity of Phoenix

Definition:Low Incidence Disabilities are disabilities that involve extensive and ongoing support in more than one major life activity and affect fewer than 1% of the population. This presentation covers three types of Syndromes that can cause Deaf-blindness as a result of a number of genetic/chromosomal conditions. The first is Charge Syndrome, the second is Usher Syndrome, and thirdly is Down Syndrome (Hallahan, Kauffman, and Pullen, 2015 pp. 324-343)

Down Syndrome -This disability is the most common genetic syndrome and is typically not hereditary. Unlike Usher Syndrome, which is hereditary, Down Syndrome results from damaged chromosomal material. It is caused by an anomaly with the 21st pair of chromosomes resulting in a triplet instead of a pair - resulting in what is called Trisomy 21.

Similarities - All three Syndromes require extensive support from family, care givers, and educators in more than one major life activity, such as communication, self-care, and mobility. It also includes independent living, employment, and self-sufficiency.- Low Incidence Disabilities are caused by genetic/chromosome syndromes.- Communication, behavior management, early intervention during childhood, and transition to adulthood are concerns that apply to all three Syndromes here.

Educational Modifications - Applies to All 3 Syndromes- Direct Teaching- Very predictable and structured daily routines.- High emphasis on communication and mobility routines.- Identify predictable sequences (subroutines) within specific activities- Learn by doing activities.- Use of touch cues and hand guidance.- Use of travel or movement routines.



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