eye-opening vs eye-watering

eye-opening

adj
  • Very startling or shocking; engaging a person's full attention. 

eye-watering

adj
  • Of a shocking or surprising nature. 

  • So expensive that (figuratively) it would make one's eyes water. 

  • Having an odour, vapours or smoke which causes irritation to the eyes. 

  • Having an extremely bad odour. 

How often have the words eye-opening and eye-watering occurred in a corpus of books? (source: Google Ngram Viewer )