blinkers vs pair of sunglasses

blinkers

noun
  • A kind of goggles, used to protect the eyes from glare, dust, etc. 

  • Spectacles. 

  • A pair of leather or rubber eye cups attached to a horse hood in order to impede the rear vision of racehorses and harness horses; blinders in (USA). 

pair of sunglasses

noun
  • A pair of glasses with tinted lenses designed to protect the eyes from sunlight. 

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