Neuromuscular Practice Week 3 Exam 1 QUESTIONS WITH COMPLETE SOLUTIONS
Describe the U.S impact of visual system dysfunctions correct answer: -majority of people with VI are elderly -every 7 minutes someone goes blind or partially sighted -nearly 1 in every 1,000 children in U.S has low vision or is legally blind What defines someone as being legally blind? correct answer: -central visual acuity of 20/200 or in better eye with best correction -FOV limited to 20 degrees *learns through tactile or auditory materials* What defines someone as partially sighted? correct answer: -visual acuity is better than 20/200 but 20/70 in better eye with best correction *learns through enlarged print or with use of optical aids* Explain the relationship between AIDS and visual loss correct answer: -35 to 75% of PWA develop visual problems ranging up to total blindness -vision loss appears to be late complication What is anopsia? correct answer: lack of vision in an eye due to interruption of an optic nerve What is cortical blindness? correct answer: -results from damage to visual cortex -extent depends on complexity of damage -may be able to gain functional vision back if vision stimulation is provided (brain plasticity) What is diabetic retinopathy? correct answer: -damage to the blood vessels in the retina -may result in blurred vision or total loss of vision -typically develops around 20 years pos
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