cross-eyed vs walleyed

cross-eyed

adj
  • Having both eyes oriented inward, especially involuntarily. 

walleyed

adj
  • Suffering from exotropia. 

  • Having bulging eyes. 

  • Having eyes of different colours. 

  • Having eyes with a pale-coloured iris. 

How often have the words cross-eyed and walleyed occurred in a corpus of books? (source: Google Ngram Viewer )