fascination vs tunnel vision

fascination

noun
  • The state or condition of being fascinated. 

  • Something which fascinates. 

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 fascination and tunnel vision occurred in a corpus of books? (source: Google Ngram Viewer )