EXED 200 Lecture Notes - Lecture 10: Visual Acuity, Visual Impairment, Refractive Error
27 Apr 2016
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Chapter 10 guided notes: blindness and low vision. Legal - visual acuity is 20/200 or less. Educational - cannot use vision for learning. Education - can use vision for learning with modifications. Idea definitions of visual impairments emphasizes the relationship between vision and learning. Totally blind: receives no useful information through the sense of vision. ___functionally blind____________: learns primarily through the auditory and tactile senses. Low vision: uses vision as a primary means of learning but may supplement by using tactile and auditory input. Rate of visual impairments is ____4 per 10,000__________- in individuals in the school population. Many school age children with visual impairments also have another disability. Refractive errors: myopia (nearsightedness) and hyperopia (farsightedness) __cortical visual impairments_____________: suspected damage to parts of brain that interpret visual information. Impaired or absent vision makes it difficult to see the ____connections_______ between experiences: abstract concepts, analogies, and idiomatic expressions can be difficult to understand without sight.
