diversion vs tunnel vision

diversion

noun
  • A tactic used to draw attention away from the real threat or action. 

  • A hobby; an activity that distracts the mind. 

  • A detour, such as during road construction. 

  • Officially halting or suspending a formal criminal or juvenile justice proceeding and referral of the accused person to a treatment or care program. 

  • The act of diverting. 

  • Removal of water via a canal. 

  • The rerouting of cargo or passengers to a new transshipment point or destination, or to a different mode of transportation before arrival at the ultimate destination. 

tunnel vision

noun
  • The tendency to focus one's attention on one specific idea or viewpoint, to the exclusion of everything else. 

  • A restricted field of vision as the result of looking through some type of object or a medical condition. 

How often have the words diversion and tunnel vision occurred in a corpus of books? (source: Google Ngram Viewer )