myopia vs sightedness

myopia

noun
  • A disorder of the vision where distant objects appear blurred because the eye focuses their images in front of the retina instead of on it. 

  • A lack of imagination, discernment or long-range perspective in thinking or planning. 

sightedness

noun
  • The quality of being sighted, or having the ability to see. 

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