perspective vs visual acuity

perspective

noun
  • The appearance of depth in objects, especially as perceived using binocular vision. 

  • A perspective glass. 

  • A view, vista or outlook. 

  • The choice of a single angle or point of view from which to sense, categorize, measure or codify experience. 

  • The technique of representing three-dimensional objects on a two-dimensional surface. 

  • The ability to consider things in such relative perspective. 

  • A sound recording technique to adjust and integrate sound sources seemingly naturally. 

adj
  • Of, in or relating to perspective. 

visual acuity

noun
  • The sharpness of vision or sight. 

  • Strength of vision expressed on some definite scale. 

How often have the words perspective and visual acuity occurred in a corpus of books? (source: Google Ngram Viewer )