to experience a puncture in one's eye (see Molina; given in the first person singular)
Orthographic Variants:
nixpatzaua
Alonso de Molina:
nixpatzaua. (pret. onixpatzauac.) quebrarseme el ojo. Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 72v. col. 1. Thanks to Joe Campbell for providing the transcription.