contact lens vs exposure

contact lens

noun
  • A thin lens, made of flexible or rigid plastic, that is placed directly on to the eye to correct vision, used as an alternative to spectacles, or, if coloured, to change one's eye color cosmetically. 

exposure

noun
  • The piece of film exposed to light. 

  • Details of the time and f-number used. 

  • The condition of being exposed, uncovered, or unprotected. 

  • The act of exposing something, such as a scandal. 

  • That part which is facing or exposed to something, e.g. the sun, weather, sky, or a view. 

  • Lack of protection from weather or the elements. 

  • The amount of sun, wind etc. experienced by a particular site. 

  • The act or condition of being at risk of financial losses. 

  • An instance of taking a photograph. 

How often have the words contact lens and exposure occurred in a corpus of books? (source: Google Ngram Viewer )