Which of the following definitions of visual impairment most emphasizes the clearness of vision at various distances (visual acuity)?
a. educational c. legal-medical
b. functional d. common usage
C
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A Incorrect. The educational definition emphasizes the extent to which vision can be used for reading and learning.
B Incorrect. The functional definition describes what a person actually can see.
C Correct. The legal-medical definition emphasizes the clearness of vision at various distances (visual acuity).
D Incorrect. There is no common usage definition for visual impairment.
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