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Unformatted text preview: disabiltity- Causes of visual impairments: • Refractive errors: myopia • Structural impairment: cataracts, glaucoma, mystagmus, strabismus • Coritcal visual impairments: suspected damage to part of the brain… Types and causes of visual impairment:-Reinitis pigmentosa (RP): a gradual degeneration of the retinal the first sympotom usually difficulty seeing at night, followed by loss of peripheral vision; the most common of all inherited Guide Dogs:-About 7,250 people in the US use GD • Less than 4% of adults who are legally blind-GD have a lot to offer their human partners • They are specially trained to act as mobility aids for blind and visually impaired individuals Orientation:-Long cane is the device most widely used by visually impairment individuals Aids: Braille:-A system of reading and writing in which letters, words, numbers are made from combinations of six raised dots. Tactile aids and manipulative Computer technological aids for reading p…...
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This note was uploaded on 09/04/2010 for the course PSYC 305 taught by Professor Freiberg during the Spring '10 term at UMBC.
- Spring '10