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Blindness and Low Vision

Blindness and Low Vision. By: Jen and Lexi. Definition. Low Vision: Visual impairment severe enough so that special education services are required Blind: Having either no vision or only light perception

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Blindness and Low Vision

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  1. Blindness and Low Vision • By: Jen and Lexi

  2. Definition • Low Vision: Visual impairment severe enough so that special education services are required • Blind: Having either no vision or only light perception • Legally Blind: Visual acuity of 20/200 or less in the better eye after best possible correction glasses or contact lenses

  3. Characteristics • 1. Children with severe visual impairments do not benefit from incidental learning, unlike normally sighted children • 2. Visual impairment often leads to delays or deficits in motor development • 3. Some students with visual impairments experience social isolation • 4. The behavior and attitudes of sighted persons can be unnecessary barriers to the social participation of individuals with visual impairments

  4. A Few Different Types • Cataract: Blurred, distorted, or incomplete vision caused by cloudiness in the lens; caused by injury, malnutrition, or rubella during pregnancy, glaucoma, retinitis pigmentosa, heredity, aging • Color deficiency or color blindness: Difficulty distinguishing certain colors; red-green confusion is most common; caused by cone malformation or absence, macular deficiency, heredity

  5. A Few Different Types • Diabetic Retinopathy: Impaired vision as a result of hemorrhages and the growth of new blood vessels in the area of the retina due to diabetes; leading cause of blindness for people ages 20 to 64 • Retinitis Pigmentosa: The most common genetic disease of the eye; causes gradual degeneration of the retina; first symptom is usually difficulty seeing at night, followed by loss of peripheral vision; heredity

  6. Focus Question • How should school systems place children with low vision and blindness? (In separate classrooms, Inclusion classrooms, Home schooled) Should they have access to special education? How do you propose they do this?

  7. Braille • Braille: A tactile system of reading and writing in which letters, words, numbers, and other systems are made from arraignments of embossed six- dot cells. • Primary means of literacy

  8. More Education Tools • Students with low vision use three basic methods for reading print • Magnification • Optical Devices • Large print • Education should include independent living skills such as personal hygiene, cooking, and financial management

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